https://wiki.opensourceecology.org/api.php?action=feedcontributions&feedformat=atom&user=Wneal 2026-04-21T11:47:48Z User contributions MediaWiki 1.39.13 https://wiki.opensourceecology.org/index.php?title=OSE_Simulator&diff=313046 2025-10-21T17:43:11Z

<p>Wneal: /* Background */</p> <hr /> <div>==Background==<br /> A simulator was written for ''FIRST'' Robotics Competition robots allowing teams to understand the performance characteristics of their robots before building them. The simulator models the robots using a collection of physical parameters stored in a .yaml file and allows users to control the robots using the same game controller used in the competition. <br /> <br /> Several of the Open Source Ecology projects involving moving vehicles and/or parts may benefit from modeling in such a simulator. Possible applications may include affordable automation or remote control modules for skid-steers or tractors for example.<br /> <br /> It is thus possible to imagine the expansion of this simulator to incorporate other machines. In the context of Open Source ecology, this especially applies to GVCS machines.<br /> <br /> ==Source Code==<br /> <br /> Here is the link to the GitLab Repository hosting the code for this project:<br /> https://gitlab.com/wjaneal/frc-simulator<br /> <br /> ==Simulator Toolchain==<br /> *Robot is designed in a CAD Package such as FreeCAD or OnShape<br /> *Export the model of the robot in a .obj format<br /> *Import the model to Blender<br /> *Pare down the file size by removing highly detailed parts such as nuts and bolts. The intent is to maintain the physical appearance of the robot with the smallest file size possible - this allows the simulator to work without appreciable lag even on less capable computers.<br /> *Export the Blender file to a .glb format - this may require installing an add-on in the Blender environment<br /> *Import the .glb file into the simulator which is written in Python / Panda3D<br /> <br /> ==Software Design==<br /> The software is divided into several modules:<br /> # The GUI code - FRCSIMMainMenu.py. This imports the controls class<br /> # The Controls class - tying in user input through the keyboard and game controller with the simulated movement of the robot - FRCControls.py. This imports the base class.<br /> # The FRC base class - this stages all of the Panda3D graphics assets for deployment in the application. This imports the physics class<br /> # The FRC physics class - a collection of mathematics and physics-related functions to calculate the behaviour of the robot during the simulation. This class imports YAML files corresponding to the specific robot that is being modeled by the simulator at a particular time.<br /> # YAML files - these are used to specify the physical attributes of each robot.</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Simulator&diff=313045 2025-10-21T17:41:11Z

<p>Wneal: /* Software Design */</p> <hr /> <div>==Background==<br /> A simulator was written for ''FIRST'' Robotics Competition robots allowing teams to understand the performance characteristics of their robots before building them. The simulator models the robots using a collection of physical parameters stored in a .yaml file and allows users to control the robots using the same game controller used in the competition. <br /> <br /> Several of the Open Source Ecology projects involving moving vehicles and/or parts may benefit from modeling in such a simulator. Possible applications may include affordable automation or remote control modules for skid-steers or tractors for example.<br /> <br /> ==Source Code==<br /> <br /> Here is the link to the GitLab Repository hosting the code for this project:<br /> https://gitlab.com/wjaneal/frc-simulator<br /> <br /> ==Simulator Toolchain==<br /> *Robot is designed in a CAD Package such as FreeCAD or OnShape<br /> *Export the model of the robot in a .obj format<br /> *Import the model to Blender<br /> *Pare down the file size by removing highly detailed parts such as nuts and bolts. The intent is to maintain the physical appearance of the robot with the smallest file size possible - this allows the simulator to work without appreciable lag even on less capable computers.<br /> *Export the Blender file to a .glb format - this may require installing an add-on in the Blender environment<br /> *Import the .glb file into the simulator which is written in Python / Panda3D<br /> <br /> ==Software Design==<br /> The software is divided into several modules:<br /> # The GUI code - FRCSIMMainMenu.py. This imports the controls class<br /> # The Controls class - tying in user input through the keyboard and game controller with the simulated movement of the robot - FRCControls.py. This imports the base class.<br /> # The FRC base class - this stages all of the Panda3D graphics assets for deployment in the application. This imports the physics class<br /> # The FRC physics class - a collection of mathematics and physics-related functions to calculate the behaviour of the robot during the simulation. This class imports YAML files corresponding to the specific robot that is being modeled by the simulator at a particular time.<br /> # YAML files - these are used to specify the physical attributes of each robot.</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Simulator&diff=313044 2025-10-21T17:40:50Z

<p>Wneal: </p> <hr /> <div>==Background==<br /> A simulator was written for ''FIRST'' Robotics Competition robots allowing teams to understand the performance characteristics of their robots before building them. The simulator models the robots using a collection of physical parameters stored in a .yaml file and allows users to control the robots using the same game controller used in the competition. <br /> <br /> Several of the Open Source Ecology projects involving moving vehicles and/or parts may benefit from modeling in such a simulator. Possible applications may include affordable automation or remote control modules for skid-steers or tractors for example.<br /> <br /> ==Source Code==<br /> <br /> Here is the link to the GitLab Repository hosting the code for this project:<br /> https://gitlab.com/wjaneal/frc-simulator<br /> <br /> ==Simulator Toolchain==<br /> *Robot is designed in a CAD Package such as FreeCAD or OnShape<br /> *Export the model of the robot in a .obj format<br /> *Import the model to Blender<br /> *Pare down the file size by removing highly detailed parts such as nuts and bolts. The intent is to maintain the physical appearance of the robot with the smallest file size possible - this allows the simulator to work without appreciable lag even on less capable computers.<br /> *Export the Blender file to a .glb format - this may require installing an add-on in the Blender environment<br /> *Import the .glb file into the simulator which is written in Python / Panda3D<br /> <br /> ==Software Design==<br /> The software is divided into several modules:<br /> 1. The GUI code - FRCSIMMainMenu.py. This imports the controls class<br /> 2. The Controls class - tying in user input through the keyboard and game controller with the simulated movement of the robot - FRCControls.py. This imports the base class.<br /> 3. The FRC base class - this stages all of the Panda3D graphics assets for deployment in the application. This imports the physics class<br /> 4. The FRC physics class - a collection of mathematics and physics-related functions to calculate the behaviour of the robot during the simulation. This class imports YAML files corresponding to the specific robot that is being modeled by the simulator at a particular time.<br /> 5. YAML files - these are used to specify the physical attributes of each robot.</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Simulator&diff=313043 2025-10-21T17:32:45Z

<p>Wneal: /* Background */</p> <hr /> <div>==Background==<br /> A simulator was written for ''FIRST'' Robotics Competition robots allowing teams to understand the performance characteristics of their robots before building them. The simulator models the robots using a collection of physical parameters stored in a .yaml file and allows users to control the robots using the same game controller used in the competition. <br /> <br /> Several of the Open Source Ecology projects involving moving vehicles and/or parts may benefit from modeling in such a simulator. Possible applications may include affordable automation or remote control modules for skid-steers or tractors for example.<br /> <br /> ==Source Code==<br /> <br /> Here is the link to the GitLab Repository hosting the code for this project:<br /> https://gitlab.com/wjaneal/frc-simulator<br /> <br /> ==Simulator Toolchain==<br /> *Robot is designed in a CAD Package such as FreeCAD or OnShape<br /> *Export the model of the robot in a .obj format<br /> *Import the model to Blender<br /> *Pare down the file size by removing highly detailed parts such as nuts and bolts. The intent is to maintain the physical appearance of the robot with the smallest file size possible - this allows the simulator to work without appreciable lag even on less capable computers.<br /> *Export the Blender file to a .glb format - this may require installing an add-on in the Blender environment<br /> *Import the .glb file into the simulator which is written in Python / Panda3D</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Simulator&diff=313042 2025-10-21T17:30:38Z

<p>Wneal: /* Background */</p> <hr /> <div>==Background==<br /> A simulator was written for ''FIRST'' Robotics Competition robots allowing teams to understand the performance characteristics of their robots before building them. The simulator models the robots using a collection of physical parameters stored in a .yaml file and allows users to control the robots using the same game controller used in the competition.<br /> <br /> ==Source Code==<br /> <br /> Here is the link to the GitLab Repository hosting the code for this project:<br /> https://gitlab.com/wjaneal/frc-simulator<br /> <br /> ==Simulator Toolchain==<br /> *Robot is designed in a CAD Package such as FreeCAD or OnShape<br /> *Export the model of the robot in a .obj format<br /> *Import the model to Blender<br /> *Pare down the file size by removing highly detailed parts such as nuts and bolts. The intent is to maintain the physical appearance of the robot with the smallest file size possible - this allows the simulator to work without appreciable lag even on less capable computers.<br /> *Export the Blender file to a .glb format - this may require installing an add-on in the Blender environment<br /> *Import the .glb file into the simulator which is written in Python / Panda3D</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Simulator&diff=313034 2025-10-21T12:58:18Z

<p>Wneal: /* Simulator Toolchain */</p> <hr /> <div>==Background==<br /> A simulator was written for ''FIRST'' Robotics Competition robots allowing teams to understand the performance characteristics of their robots before building them. The simulator models the robots using a collection of physical parameters stored in a .yaml file and allows users to control the robots using the same game controller used in the competition.<br /> ==Simulator Toolchain==<br /> *Robot is designed in a CAD Package such as FreeCAD or OnShape<br /> *Export the model of the robot in a .obj format<br /> *Import the model to Blender<br /> *Pare down the file size by removing highly detailed parts such as nuts and bolts. The intent is to maintain the physical appearance of the robot with the smallest file size possible - this allows the simulator to work without appreciable lag even on less capable computers.<br /> *Export the Blender file to a .glb format - this may require installing an add-on in the Blender environment<br /> *Import the .glb file into the simulator which is written in Python / Panda3D</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Simulator&diff=313033 2025-10-21T12:58:03Z

<p>Wneal: Created page with &quot;==Background== A simulator was written for &#039;&#039;FIRST&#039;&#039; Robotics Competition robots allowing teams to understand the performance characteristics of their robots before building them. The simulator models the robots using a collection of physical parameters stored in a .yaml file and allows users to control the robots using the same game controller used in the competition. ==Simulator Toolchain== *Robot is designed in a CAD Package such as FreeCAD or OnShape *Export the mode...&quot;</p> <hr /> <div>==Background==<br /> A simulator was written for ''FIRST'' Robotics Competition robots allowing teams to understand the performance characteristics of their robots before building them. The simulator models the robots using a collection of physical parameters stored in a .yaml file and allows users to control the robots using the same game controller used in the competition.<br /> ==Simulator Toolchain==<br /> *Robot is designed in a CAD Package such as FreeCAD or OnShape<br /> *Export the model of the file in a .obj format<br /> *Import the model to Blender<br /> *Pare down the file size by removing highly detailed parts such as nuts and bolts. The intent is to maintain the physical appearance of the robot with the smallest file size possible - this allows the simulator to work without appreciable lag even on less capable computers.<br /> *Export the Blender file to a .glb format - this may require installing an add-on in the Blender environment<br /> *Import the .glb file into the simulator which is written in Python / Panda3D</div>

Wneal https://wiki.opensourceecology.org/index.php?title=Industry&diff=313032 2025-10-21T12:51:29Z

<p>Wneal: /* Software */</p> <hr /> <div>==Includes==<br /> <br /> - [[Multimachine]] <br /> <br /> - [[Ironworker]] <br /> <br /> - [[Laser Cutter]] <br /> <br /> - [[Welder]]<br /> <br /> - [[Plasma Cutter]]<br /> <br /> - [[CNC Torch Table]]<br /> <br /> - [[Metal Roller]] <br /> <br /> - [[Rod and Wire Mill]]<br /> <br /> - [[Press Forge]] <br /> <br /> - [[Universal Rotor]]<br /> <br /> - [[3D Printer]] <br /> <br /> - [[3D Scanner]] <br /> <br /> - [[CNC Circuit Mill]]<br /> <br /> - [[Industrial Robot]]<br /> <br /> - [[Chipper Hammermill]]<br /> <br /> - [[Drill Press]]<br /> <br /> - [[Induction Furnace]]<br /> <br /> ==Software==<br /> - [[OSE Simulator]]<br /> The [[OSE Simulator]] is intended to support development and testing and to enable the autonomous operation of various machines.<br /> <br /> ==See Also==<br /> <br /> [[Digital Fabrication]]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=Industry&diff=313031 2025-10-21T12:49:56Z

<p>Wneal: </p> <hr /> <div>==Includes==<br /> <br /> - [[Multimachine]] <br /> <br /> - [[Ironworker]] <br /> <br /> - [[Laser Cutter]] <br /> <br /> - [[Welder]]<br /> <br /> - [[Plasma Cutter]]<br /> <br /> - [[CNC Torch Table]]<br /> <br /> - [[Metal Roller]] <br /> <br /> - [[Rod and Wire Mill]]<br /> <br /> - [[Press Forge]] <br /> <br /> - [[Universal Rotor]]<br /> <br /> - [[3D Printer]] <br /> <br /> - [[3D Scanner]] <br /> <br /> - [[CNC Circuit Mill]]<br /> <br /> - [[Industrial Robot]]<br /> <br /> - [[Chipper Hammermill]]<br /> <br /> - [[Drill Press]]<br /> <br /> - [[Induction Furnace]]<br /> <br /> ==Software==<br /> - [[OSE Simulator]]<br /> <br /> ==See Also==<br /> <br /> [[Digital Fabrication]]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=Team_Wikispeed&diff=261408 2021-10-17T01:49:42Z

<p>Wneal: </p> <hr /> <div><br /> ==TED talk:==<br /> &lt;html&gt;&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed//x8jdx-lf2Dw&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> <br /> =Team Wikispeed=<br /> [http://www.wikispeed.com/ Wikispeed] is a team of volunteers that formed around the work of [http://www.linkedin.com/profile/view?id=4583874&amp;authType=NAME_SEARCH&amp;authToken=y3gN&amp;locale=en_US&amp;srchid=f5fc9cc6-0258-4503-b0b3-92382aac28b1-0&amp;srchindex=1&amp;srchtotal=1&amp;goback=%2Efps_PBCK_joe+justice+wikispeed_*1_*1_*1_*1_*1_*1_*2_*1_Y_*1_*1_*1_false_1_R_*1_*51_*1_*51_true_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2&amp;pvs=ps&amp;trk=pp_profile_name_link Joe Justice] as he competed in the [http://www.progressiveautoxprize.org/teams/wikispeed Progressive Insurance Automotive X-Prize]. His greatest innovation was applying [http://en.wikipedia.org/wiki/Scrum_(development) lean/agile/SCRUM] software program management to hardware, specifically the iterative design of a 100+ mpg passenger vehicle.<br /> <br /> The dramatic success of Team Wikispeed's activities pretty much demands listening to what Joe has to say.<br /> <br /> For clarity, and because I wasn't clear on this point until I researched it, it is important to point out that Team Wikispeed was eliminated in the first round of on-location testing at the X-Prize competition. &quot;Without even bothering to look at the finite element analysis and computational fluid dynamics Justice had brought as proof of his design’s validity, the inspector rejected the car outright. Justice felt like he’d been slapped in the face. “It was like fireworks going off in my cheeks,” he says. “This is something I’ve had a whole lot of design input into, and this one person is saying, ‘This isn’t good enough.’...Rather than spending hours pulling apart the SGT01 to get to the suspension, the team simply unbolted the body, removed the suspension module, and began fabricating a new one. They got it done, too, just in time. The only problem was that as they finished, minutes before the deadline, Justice and another team member cut a wire in the electrical system. The car wouldn’t start, and Wikispeed’s run for the X Prize was done. They finished in a tie for 10th in their division.&quot; [http://www.seattlemet.com/issues/archives/articles/wikispeeds-100-mpg-car-january-2011/3/ article]<br /> <br /> ===General===<br /> * First functional prototype built in 3 months.<br /> * Existing manufacturing processes are slow to change because they're exceptionally expensive to change.<br /> ** Major manufacturers typically operate on 10-25 year design cycles.<br /> * Wikispeed uses 7-day design cycles.<br /> * Iterated a process that brought the cost/time of a full structural carbon fiber car body down from $36,000/3 months to $800/3 days.<br /> * Went from 1 guy in his garage to 100+ volunteers, in 8 countries, and a production-ready car in 6 months.<br /> <br /> ===Specific===<br /> * Modularity.<br /> ** Every system in the car can be separated from every other system as quickly and easily as changing a tire.<br /> * Test-based.<br /> ** The customer-value standard, and the test for it, is designed BEFORE the solution is designed.<br /> * Use less stuff.<br /> ** The parts for the frame of the car can be built with stock 4&quot; aluminum tube, an $80 band saw, and a used-kit-built CNC milling machine.<br /> ** Reduce costs in tooling, machinery and complexity wherever possible. This allows for improvements to be incorporated into the design immediately because there are so few sunk costs.<br /> * Distributed, collaborative teams.<br /> ** Use free online tools.<br /> * Morale for velocity.<br /> ** It's not additive or subtractive, it's a multiplier. <br /> * Work in pairs.<br /> ** Put a newbie with a pro and the newbie learns AS the job gets done. This eliminates time devoted to training. The pro gets help, the newbie gets hands-on experience.<br /> ** Also eliminates the need for most types of documentation.<br /> * Visualize workflow to eliminate any time spent not creatively solving problems.<br /> <br /> ==Keynote American Council of Engineering Companies==<br /> &lt;html&gt;&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed//I3HXw0Ruz9M&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> <br /> <br /> <br /> ==Summary: Scrum Gathering in Seattle==<br /> &lt;html&gt;&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed//pjempylJy1w&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> <br /> <br /> This is a summary of the talk:<br /> ===History===<br /> * Initial Goal: build the lightest chassis.<br /> * Share on the blog<br /> ** asked silly and nerdy questions<br /> * passes technical deliverables for the [http://www.xprize.org/ X prize].<br /> ** became finalist to compete with 136 cars, most of them funded by millions of dollars<br /> ** iterating the car at the race track, inspired a higher driver of a team competing against WikiSpeed to spend a lot of time hanging out with the Team.<br /> ** got 10th place.<br /> ** Received several tens of thousands of dollars in road legal certification and testing.<br /> ** Press<br /> * Team grew: 56 members in 6 countries.<br /> <br /> ===Learned===<br /> <br /> * Contract-first Design: by Modules.<br /> ** Suspension - changed for 10 minutes - adjustable in caster, tow?, camber, wheel-base and track, individually per wheel.<br /> ** Interior in the race car version - aluminum bathtub that lifts out. The 4-seat interior for the contest can be easily exchanged with the 2-seat interior for testing.<br /> ** Engine - at the back of the car. The entire Power Train, with its transmission, fuel tank and cooling system can be rolled out in the time it takes to change a tire while it is running. This let us have one engine on the test bench being evaluated and another engine in the car doing testing, bring the car, switch the engines, test the other one - able to develop and test engines independently of each other.<br /> ** Chassis - all other modules connect to. Side, front, front impact. Peak stress. Our entire car absorbs the weight. 5 star crash rating equivalence.<br /> ** Car Body - cut foam with CNC machine from a CAD design, sand it, (70 volunteers in 6 countries in multiple locations)<br /> *** from Structural Carbon Fiber (normally used in airspace and exotic automobiles) was really expensive, but the material itself wasn't expensive, but the knowledge how to use it was. So Joe Justice went to composite school for few weeks and then they built the carbon fiber body for $800 in 3 days (body would cost $36,000 in 3 months time with traditional manufacturing techniques).<br /> * Went to [http://www.naias.com/ North American International Auto Show] - put WikiSpeed on the main floor between Ford and Chevrolet. Met the creator of the car body, Rob Mohrbacher of http://mohrcomposites.com from [http://en.wikipedia.org/wiki/Germantown,_Montgomery_County,_Maryland Germantown, Maryland].<br /> <br /> ===How - Agile and Scrum===<br /> <br /> * Weekly stand-up meetings<br /> * prioritized backlogs<br /> * and demos<br /> <br /> ====Tools====<br /> * FreeConferenceCall - for stand-up meeting<br /> ** What I did, what I will do, what is blocking me<br /> * Skype free<br /> * Google Groups - up-to-date daily, pictures, updates, backlog from a Google Doc<br /> * Google Docs - documents collaboration<br /> ** Trust the Team. It is versioned - who changed, what when. Can be reverted.<br /> * Avoid planning more than 2 weeks out - we learn so fast that things change what we will do next<br /> * Facebook and LinkedIn for team and public status updates.<br /> ** don't repeat information sharing. <br /> * DropBox and SkyDrive for sharing large files<br /> * Youtube to share videos<br /> * Scrumy - online project management tool loosely based on Scrum.<br /> * Linoit.com - for backlog http://linoit.com<br /> * LibreCAD - open source CAD for Windows, Apple, Linux<br /> * Email Lists<br /> ** Always Reply All to approximate being in a Scrum room. Allows distributed team to skim emails and be appraised of the current state of the project.&lt;ref&gt;http://futureofprojectmanagement.com/2011/12/02/joe-justice-built-a-100mpg-car-using-principles-of-agile-lean-and-scrum-how-did-he-do-it/&lt;/ref&gt;<br /> <br /> ====Principles - What worked well====<br /> * By minimizing cost of making change we innovate quickly. Changes in team members, changes in goals, changes in machinery, changes materials.<br /> * By loosely coupling modules, we make changes in parallel.<br /> ** E.g. split the car into its component modules. Have people working on the suspension system, drive train, emission system, headlights, electronic control mechanism, all in parallel.<br /> ** Modularity: Interior module, Chassis, Pedal Plate, Front Crush Structure, Suspension Module, Engine, Transmission, Fuel System, Emission System, Fuel Injection System, Breaking system.<br /> ** When we started designing the car, we didn't know how the chassis would end up being like, we didn't know what type of drive train, type of suspension, we will be using. So what we wanted to do is to reduce the cost to make change between those parts. So we architect a contract - the way these modules will talk to each other and hold together in a structural way and the way they communicate.<br /> * By working collaboratively and in shared space we unblock quickly.<br /> ** E.g. every time we had a blocking issues the team was able to bulldoze it that same day. Pairing and Swarming worked very well.<br /> * By first automating test we quickly know if we improved. (Test-driven manufacturing)<br /> ** Example<br /> *** 100mpg on a highway cycle<br /> *** etc.<br /> ** When changes came we quickly knew whether we moved entirely forward, or moved forward on a few fronts, but actually backed on to other fronts. So we had to quickly kill work that would have been actually damaging and thus we were moving forward very fast.<br /> * Test our success criteria - everyone cared about the metrics!<br /> * Team morale (motivation) is a multiplier for velocity.<br /> ** Make sure people are never or rarely frustrated and that they get to share successes. Celebrating every iteration.<br /> * Team trust is empowering<br /> ** Question access restrictions on documents, avoid group subjugation. Empowerment keeps velocity high.<br /> * Single Backlog - all prioritized tasks are visible and in one place<br /> <br /> ====Modular Inventory====<br /> * Whenever possible tools are visually next to their consumables.<br /> * Fewest possible categories always inside of each other (See everything from where you stand)<br /> * Minimize time spent doing anything but creative problem solving.<br /> ** E.g. - So it’s not just less meetings, less paperwork, but in our case it is that we have a transparent bin that has screw drivers. And every screw driver is in there. There is not a screw driver anywhere else. If someone needs a screwdriver, it’s at a central location not more than twenty steps away. And it’s a clear bin so that they can see if what they need is inside before they even get there. In fact they can see what’s in there across the room and it is labeled. In software teams we would do the same thing with templates, we would do the same thing with test driven development, we would do the same thing with class naming and interface design, so people understand what goes with what. (See references)<br /> <br /> ====From Software====<br /> * Agile - reduse cost to make change and iterative development<br /> * Test-Driven Design - tester and manufacturing<br /> * XP - pairing and swarming<br /> * [http://en.wikipedia.org/wiki/Scrum_(development) Scrum] - almost everything. Clearly defined roles and responsibilities.<br /> * OOP - clearly defined modules, classes and interfaces<br /> * [http://en.wikipedia.org/wiki/Kanban_(development) Kanban] - work in progress limits, not to overload people.<br /> * Contract First Development - Define precise and verifiable component interface specifications.<br /> <br /> ====Wikispeed Future Developments====<br /> * Making a family car<br /> * Developing a truck<br /> <br /> <br /> <br /> =Wikispeed Tenets=<br /> <br /> * If I give money, time, cookies or supplies to WIKISPEED, and WIKISPEED is profitable, WIKISPEED will pay me back the value of what I put in plus interest commensurable with their level of success. I can choose not to accept repayment, but WIKISPEED will make reasonable attempts. This is based on value, not quantity (in hours, pounds, dollars, or word count).<br /> * If I give money, time, cookies or supplies to WIKISPEED, I have no claim on WIKISPEED or its decisions or what it does with my resources after I give them. Other than tenant 1 above.<br /> * If I share my best thoughts and work with WIKISPEED, WIKISPEED can use them at no cost, and I retain rights to re-use or protect my ideas unless I opt to bequeath them to WIKISPEED or the Public Domain.<br /> <br /> =Wikispeed Principles=<br /> <br /> * Equitable Distribution of Wealth.<br /> * Avoid profit from waste (e.g. buying a competitor to shut them down). Grow profit based on visible value.<br /> * If we focus on profit over value to customers, we will obtain neither. If we focus on visible customer value over profit, we will profit.<br /> * Use less stuff (Lean) wherever responsible.<br /> * Make decisions at the last responsible moment, this is when we know the most. but be careful not to wait until it is no-longer responsible. We never make a decision before we have to just to &quot;get it out of the way.&quot;<br /> * Start with the minimum useful solution (porters on roller-skates over a mail-chute), then iterate aggressively to improve visible value and efficient sustainability of the solution.<br /> * Morale is a multiplier for velocity.<br /> * We trade estimated future states for knowing the most about our current situation and make changes quickly (Agility).<br /> * Trust our team. this avoids a culture of CYA, which slows down innovation and kills morale. e.g. a company which spends $6 million on intranet security allowing employees to not see documents above their salary level to avoid leaking potentially libelous documents, instead of $6 million having interns and attorneys aggressively helping all levels of the org identify documents that are potentially libelous, which are usually a sign of unethical action, coach them on how to rectify those situations ASAP as a company with help from all levels of the company).<br /> * Replace a document with a conversation. Instead of writing a specification document, have a white boarding conversation in a room where as many other team members as possible can over-hear. Take pictures of the white board when you are done and email the team. Documents have a maintenance cost.<br /> * Produce self-documenting work- a car with a navigation that teaches you how to use it instead of a manual. Can you imagine if Internet Explorer still shipped with a manual? We expect it to be self explanatory. Documents are a hidden expense, requiring editing and re-write to match the current version. <br /> * Try not to do something alone, pair with another team member whenever responsible. This aids in knowledge transfer and avoids requirements for documentation.<br /> <br /> =Wikispeed CAD Files=<br /> Here is a link to a folder created to collect Wikispeed CAD drawings (pdf) and CAD files generated in FreeCAD from the original LibreCAD designs (October, 2021):<br /> *[https://drive.google.com/drive/folders/1GAIUHd30GpRXTiXqMG_EyQLQiRxQycsL?usp=sharing Wikispeed CAD Files]<br /> <br /> =References=<br /> <br /> *CNN on Management a la Wikispeed - [http://management.fortune.cnn.com/2012/06/18/how-companies-ought-to-train-their-staffers/]<br /> *[http://agileinc.wordpress.com/on-the-road-3/sglon/]<br /> *[http://futureofprojectmanagement.com/2011/12/02/joe-justice-built-a-100mpg-car-using-principles-of-agile-lean-and-scrum-how-did-he-do-it/]<br /> {{Reflist}}<br /> [[Category:Wikispeed]]<br /> [[Category:Open Source Automobile]]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=Team_Wikispeed&diff=261407 2021-10-17T01:48:25Z

<p>Wneal: </p> <hr /> <div><br /> ==TED talk:==<br /> &lt;html&gt;&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed//x8jdx-lf2Dw&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> <br /> =Team Wikispeed=<br /> [http://www.wikispeed.com/ Wikispeed] is a team of volunteers that formed around the work of [http://www.linkedin.com/profile/view?id=4583874&amp;authType=NAME_SEARCH&amp;authToken=y3gN&amp;locale=en_US&amp;srchid=f5fc9cc6-0258-4503-b0b3-92382aac28b1-0&amp;srchindex=1&amp;srchtotal=1&amp;goback=%2Efps_PBCK_joe+justice+wikispeed_*1_*1_*1_*1_*1_*1_*2_*1_Y_*1_*1_*1_false_1_R_*1_*51_*1_*51_true_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2&amp;pvs=ps&amp;trk=pp_profile_name_link Joe Justice] as he competed in the [http://www.progressiveautoxprize.org/teams/wikispeed Progressive Insurance Automotive X-Prize]. His greatest innovation was applying [http://en.wikipedia.org/wiki/Scrum_(development) lean/agile/SCRUM] software program management to hardware, specifically the iterative design of a 100+ mpg passenger vehicle.<br /> <br /> The dramatic success of Team Wikispeed's activities pretty much demands listening to what Joe has to say.<br /> <br /> For clarity, and because I wasn't clear on this point until I researched it, it is important to point out that Team Wikispeed was eliminated in the first round of on-location testing at the X-Prize competition. &quot;Without even bothering to look at the finite element analysis and computational fluid dynamics Justice had brought as proof of his design’s validity, the inspector rejected the car outright. Justice felt like he’d been slapped in the face. “It was like fireworks going off in my cheeks,” he says. “This is something I’ve had a whole lot of design input into, and this one person is saying, ‘This isn’t good enough.’...Rather than spending hours pulling apart the SGT01 to get to the suspension, the team simply unbolted the body, removed the suspension module, and began fabricating a new one. They got it done, too, just in time. The only problem was that as they finished, minutes before the deadline, Justice and another team member cut a wire in the electrical system. The car wouldn’t start, and Wikispeed’s run for the X Prize was done. They finished in a tie for 10th in their division.&quot; [http://www.seattlemet.com/issues/archives/articles/wikispeeds-100-mpg-car-january-2011/3/ article]<br /> <br /> ===General===<br /> * First functional prototype built in 3 months.<br /> * Existing manufacturing processes are slow to change because they're exceptionally expensive to change.<br /> ** Major manufacturers typically operate on 10-25 year design cycles.<br /> * Wikispeed uses 7-day design cycles.<br /> * Iterated a process that brought the cost/time of a full structural carbon fiber car body down from $36,000/3 months to $800/3 days.<br /> * Went from 1 guy in his garage to 100+ volunteers, in 8 countries, and a production-ready car in 6 months.<br /> <br /> ===Specific===<br /> * Modularity.<br /> ** Every system in the car can be separated from every other system as quickly and easily as changing a tire.<br /> * Test-based.<br /> ** The customer-value standard, and the test for it, is designed BEFORE the solution is designed.<br /> * Use less stuff.<br /> ** The parts for the frame of the car can be built with stock 4&quot; aluminum tube, an $80 band saw, and a used-kit-built CNC milling machine.<br /> ** Reduce costs in tooling, machinery and complexity wherever possible. This allows for improvements to be incorporated into the design immediately because there are so few sunk costs.<br /> * Distributed, collaborative teams.<br /> ** Use free online tools.<br /> * Morale for velocity.<br /> ** It's not additive or subtractive, it's a multiplier. <br /> * Work in pairs.<br /> ** Put a newbie with a pro and the newbie learns AS the job gets done. This eliminates time devoted to training. The pro gets help, the newbie gets hands-on experience.<br /> ** Also eliminates the need for most types of documentation.<br /> * Visualize workflow to eliminate any time spent not creatively solving problems.<br /> <br /> ==Keynote American Council of Engineering Companies==<br /> &lt;html&gt;&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed//I3HXw0Ruz9M&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> <br /> <br /> <br /> ==Summary: Scrum Gathering in Seattle==<br /> &lt;html&gt;&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed//pjempylJy1w&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> <br /> <br /> This is a summary of the talk:<br /> ===History===<br /> * Initial Goal: build the lightest chassis.<br /> * Share on the blog<br /> ** asked silly and nerdy questions<br /> * passes technical deliverables for the [http://www.xprize.org/ X prize].<br /> ** became finalist to compete with 136 cars, most of them funded by millions of dollars<br /> ** iterating the car at the race track, inspired a higher driver of a team competing against WikiSpeed to spend a lot of time hanging out with the Team.<br /> ** got 10th place.<br /> ** Received several tens of thousands of dollars in road legal certification and testing.<br /> ** Press<br /> * Team grew: 56 members in 6 countries.<br /> <br /> ===Learned===<br /> <br /> * Contract-first Design: by Modules.<br /> ** Suspension - changed for 10 minutes - adjustable in caster, tow?, camber, wheel-base and track, individually per wheel.<br /> ** Interior in the race car version - aluminum bathtub that lifts out. The 4-seat interior for the contest can be easily exchanged with the 2-seat interior for testing.<br /> ** Engine - at the back of the car. The entire Power Train, with its transmission, fuel tank and cooling system can be rolled out in the time it takes to change a tire while it is running. This let us have one engine on the test bench being evaluated and another engine in the car doing testing, bring the car, switch the engines, test the other one - able to develop and test engines independently of each other.<br /> ** Chassis - all other modules connect to. Side, front, front impact. Peak stress. Our entire car absorbs the weight. 5 star crash rating equivalence.<br /> ** Car Body - cut foam with CNC machine from a CAD design, sand it, (70 volunteers in 6 countries in multiple locations)<br /> *** from Structural Carbon Fiber (normally used in airspace and exotic automobiles) was really expensive, but the material itself wasn't expensive, but the knowledge how to use it was. So Joe Justice went to composite school for few weeks and then they built the carbon fiber body for $800 in 3 days (body would cost $36,000 in 3 months time with traditional manufacturing techniques).<br /> * Went to [http://www.naias.com/ North American International Auto Show] - put WikiSpeed on the main floor between Ford and Chevrolet. Met the creator of the car body, Rob Mohrbacher of http://mohrcomposites.com from [http://en.wikipedia.org/wiki/Germantown,_Montgomery_County,_Maryland Germantown, Maryland].<br /> <br /> ===How - Agile and Scrum===<br /> <br /> * Weekly stand-up meetings<br /> * prioritized backlogs<br /> * and demos<br /> <br /> ====Tools====<br /> * FreeConferenceCall - for stand-up meeting<br /> ** What I did, what I will do, what is blocking me<br /> * Skype free<br /> * Google Groups - up-to-date daily, pictures, updates, backlog from a Google Doc<br /> * Google Docs - documents collaboration<br /> ** Trust the Team. It is versioned - who changed, what when. Can be reverted.<br /> * Avoid planning more than 2 weeks out - we learn so fast that things change what we will do next<br /> * Facebook and LinkedIn for team and public status updates.<br /> ** don't repeat information sharing. <br /> * DropBox and SkyDrive for sharing large files<br /> * Youtube to share videos<br /> * Scrumy - online project management tool loosely based on Scrum.<br /> * Linoit.com - for backlog http://linoit.com<br /> * LibreCAD - open source CAD for Windows, Apple, Linux<br /> * Email Lists<br /> ** Always Reply All to approximate being in a Scrum room. Allows distributed team to skim emails and be appraised of the current state of the project.&lt;ref&gt;http://futureofprojectmanagement.com/2011/12/02/joe-justice-built-a-100mpg-car-using-principles-of-agile-lean-and-scrum-how-did-he-do-it/&lt;/ref&gt;<br /> <br /> ====Principles - What worked well====<br /> * By minimizing cost of making change we innovate quickly. Changes in team members, changes in goals, changes in machinery, changes materials.<br /> * By loosely coupling modules, we make changes in parallel.<br /> ** E.g. split the car into its component modules. Have people working on the suspension system, drive train, emission system, headlights, electronic control mechanism, all in parallel.<br /> ** Modularity: Interior module, Chassis, Pedal Plate, Front Crush Structure, Suspension Module, Engine, Transmission, Fuel System, Emission System, Fuel Injection System, Breaking system.<br /> ** When we started designing the car, we didn't know how the chassis would end up being like, we didn't know what type of drive train, type of suspension, we will be using. So what we wanted to do is to reduce the cost to make change between those parts. So we architect a contract - the way these modules will talk to each other and hold together in a structural way and the way they communicate.<br /> * By working collaboratively and in shared space we unblock quickly.<br /> ** E.g. every time we had a blocking issues the team was able to bulldoze it that same day. Pairing and Swarming worked very well.<br /> * By first automating test we quickly know if we improved. (Test-driven manufacturing)<br /> ** Example<br /> *** 100mpg on a highway cycle<br /> *** etc.<br /> ** When changes came we quickly knew whether we moved entirely forward, or moved forward on a few fronts, but actually backed on to other fronts. So we had to quickly kill work that would have been actually damaging and thus we were moving forward very fast.<br /> * Test our success criteria - everyone cared about the metrics!<br /> * Team morale (motivation) is a multiplier for velocity.<br /> ** Make sure people are never or rarely frustrated and that they get to share successes. Celebrating every iteration.<br /> * Team trust is empowering<br /> ** Question access restrictions on documents, avoid group subjugation. Empowerment keeps velocity high.<br /> * Single Backlog - all prioritized tasks are visible and in one place<br /> <br /> ====Modular Inventory====<br /> * Whenever possible tools are visually next to their consumables.<br /> * Fewest possible categories always inside of each other (See everything from where you stand)<br /> * Minimize time spent doing anything but creative problem solving.<br /> ** E.g. - So it’s not just less meetings, less paperwork, but in our case it is that we have a transparent bin that has screw drivers. And every screw driver is in there. There is not a screw driver anywhere else. If someone needs a screwdriver, it’s at a central location not more than twenty steps away. And it’s a clear bin so that they can see if what they need is inside before they even get there. In fact they can see what’s in there across the room and it is labeled. In software teams we would do the same thing with templates, we would do the same thing with test driven development, we would do the same thing with class naming and interface design, so people understand what goes with what. (See references)<br /> <br /> ====From Software====<br /> * Agile - reduse cost to make change and iterative development<br /> * Test-Driven Design - tester and manufacturing<br /> * XP - pairing and swarming<br /> * [http://en.wikipedia.org/wiki/Scrum_(development) Scrum] - almost everything. Clearly defined roles and responsibilities.<br /> * OOP - clearly defined modules, classes and interfaces<br /> * [http://en.wikipedia.org/wiki/Kanban_(development) Kanban] - work in progress limits, not to overload people.<br /> * Contract First Development - Define precise and verifiable component interface specifications.<br /> <br /> ====Wikispeed Future Developments====<br /> * Making a family car<br /> * Developing a truck<br /> <br /> <br /> <br /> =Wikispeed Tenets=<br /> <br /> * If I give money, time, cookies or supplies to WIKISPEED, and WIKISPEED is profitable, WIKISPEED will pay me back the value of what I put in plus interest commensurable with their level of success. I can choose not to accept repayment, but WIKISPEED will make reasonable attempts. This is based on value, not quantity (in hours, pounds, dollars, or word count).<br /> * If I give money, time, cookies or supplies to WIKISPEED, I have no claim on WIKISPEED or its decisions or what it does with my resources after I give them. Other than tenant 1 above.<br /> * If I share my best thoughts and work with WIKISPEED, WIKISPEED can use them at no cost, and I retain rights to re-use or protect my ideas unless I opt to bequeath them to WIKISPEED or the Public Domain.<br /> <br /> =Wikispeed Principles=<br /> <br /> * Equitable Distribution of Wealth.<br /> * Avoid profit from waste (e.g. buying a competitor to shut them down). Grow profit based on visible value.<br /> * If we focus on profit over value to customers, we will obtain neither. If we focus on visible customer value over profit, we will profit.<br /> * Use less stuff (Lean) wherever responsible.<br /> * Make decisions at the last responsible moment, this is when we know the most. but be careful not to wait until it is no-longer responsible. We never make a decision before we have to just to &quot;get it out of the way.&quot;<br /> * Start with the minimum useful solution (porters on roller-skates over a mail-chute), then iterate aggressively to improve visible value and efficient sustainability of the solution.<br /> * Morale is a multiplier for velocity.<br /> * We trade estimated future states for knowing the most about our current situation and make changes quickly (Agility).<br /> * Trust our team. this avoids a culture of CYA, which slows down innovation and kills morale. e.g. a company which spends $6 million on intranet security allowing employees to not see documents above their salary level to avoid leaking potentially libelous documents, instead of $6 million having interns and attorneys aggressively helping all levels of the org identify documents that are potentially libelous, which are usually a sign of unethical action, coach them on how to rectify those situations ASAP as a company with help from all levels of the company).<br /> * Replace a document with a conversation. Instead of writing a specification document, have a white boarding conversation in a room where as many other team members as possible can over-hear. Take pictures of the white board when you are done and email the team. Documents have a maintenance cost.<br /> * Produce self-documenting work- a car with a navigation that teaches you how to use it instead of a manual. Can you imagine if Internet Explorer still shipped with a manual? We expect it to be self explanatory. Documents are a hidden expense, requiring editing and re-write to match the current version. <br /> * Try not to do something alone, pair with another team member whenever responsible. This aids in knowledge transfer and avoids requirements for documentation.<br /> <br /> =Wikispeed CAD Files=<br /> Here is a link to a folder created to collect Wikispeed CAD files generated in FreeCAD from the original LibreCAD designs (October, 2021):<br /> *[https://drive.google.com/drive/folders/1GAIUHd30GpRXTiXqMG_EyQLQiRxQycsL?usp=sharing Wikispeed CAD Files]<br /> <br /> =References=<br /> <br /> *CNN on Management a la Wikispeed - [http://management.fortune.cnn.com/2012/06/18/how-companies-ought-to-train-their-staffers/]<br /> *[http://agileinc.wordpress.com/on-the-road-3/sglon/]<br /> *[http://futureofprojectmanagement.com/2011/12/02/joe-justice-built-a-100mpg-car-using-principles-of-agile-lean-and-scrum-how-did-he-do-it/]<br /> {{Reflist}}<br /> [[Category:Wikispeed]]<br /> [[Category:Open Source Automobile]]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=Team_Wikispeed&diff=261406 2021-10-17T01:47:22Z

<p>Wneal: </p> <hr /> <div><br /> ==TED talk:==<br /> &lt;html&gt;&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed//x8jdx-lf2Dw&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> <br /> =Team Wikispeed=<br /> [http://www.wikispeed.com/ Wikispeed] is a team of volunteers that formed around the work of [http://www.linkedin.com/profile/view?id=4583874&amp;authType=NAME_SEARCH&amp;authToken=y3gN&amp;locale=en_US&amp;srchid=f5fc9cc6-0258-4503-b0b3-92382aac28b1-0&amp;srchindex=1&amp;srchtotal=1&amp;goback=%2Efps_PBCK_joe+justice+wikispeed_*1_*1_*1_*1_*1_*1_*2_*1_Y_*1_*1_*1_false_1_R_*1_*51_*1_*51_true_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2_*2&amp;pvs=ps&amp;trk=pp_profile_name_link Joe Justice] as he competed in the [http://www.progressiveautoxprize.org/teams/wikispeed Progressive Insurance Automotive X-Prize]. His greatest innovation was applying [http://en.wikipedia.org/wiki/Scrum_(development) lean/agile/SCRUM] software program management to hardware, specifically the iterative design of a 100+ mpg passenger vehicle.<br /> <br /> The dramatic success of Team Wikispeed's activities pretty much demands listening to what Joe has to say.<br /> <br /> For clarity, and because I wasn't clear on this point until I researched it, it is important to point out that Team Wikispeed was eliminated in the first round of on-location testing at the X-Prize competition. &quot;Without even bothering to look at the finite element analysis and computational fluid dynamics Justice had brought as proof of his design’s validity, the inspector rejected the car outright. Justice felt like he’d been slapped in the face. “It was like fireworks going off in my cheeks,” he says. “This is something I’ve had a whole lot of design input into, and this one person is saying, ‘This isn’t good enough.’...Rather than spending hours pulling apart the SGT01 to get to the suspension, the team simply unbolted the body, removed the suspension module, and began fabricating a new one. They got it done, too, just in time. The only problem was that as they finished, minutes before the deadline, Justice and another team member cut a wire in the electrical system. The car wouldn’t start, and Wikispeed’s run for the X Prize was done. They finished in a tie for 10th in their division.&quot; [http://www.seattlemet.com/issues/archives/articles/wikispeeds-100-mpg-car-january-2011/3/ article]<br /> <br /> ===General===<br /> * First functional prototype built in 3 months.<br /> * Existing manufacturing processes are slow to change because they're exceptionally expensive to change.<br /> ** Major manufacturers typically operate on 10-25 year design cycles.<br /> * Wikispeed uses 7-day design cycles.<br /> * Iterated a process that brought the cost/time of a full structural carbon fiber car body down from $36,000/3 months to $800/3 days.<br /> * Went from 1 guy in his garage to 100+ volunteers, in 8 countries, and a production-ready car in 6 months.<br /> <br /> ===Specific===<br /> * Modularity.<br /> ** Every system in the car can be separated from every other system as quickly and easily as changing a tire.<br /> * Test-based.<br /> ** The customer-value standard, and the test for it, is designed BEFORE the solution is designed.<br /> * Use less stuff.<br /> ** The parts for the frame of the car can be built with stock 4&quot; aluminum tube, an $80 band saw, and a used-kit-built CNC milling machine.<br /> ** Reduce costs in tooling, machinery and complexity wherever possible. This allows for improvements to be incorporated into the design immediately because there are so few sunk costs.<br /> * Distributed, collaborative teams.<br /> ** Use free online tools.<br /> * Morale for velocity.<br /> ** It's not additive or subtractive, it's a multiplier. <br /> * Work in pairs.<br /> ** Put a newbie with a pro and the newbie learns AS the job gets done. This eliminates time devoted to training. The pro gets help, the newbie gets hands-on experience.<br /> ** Also eliminates the need for most types of documentation.<br /> * Visualize workflow to eliminate any time spent not creatively solving problems.<br /> <br /> ==Keynote American Council of Engineering Companies==<br /> &lt;html&gt;&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed//I3HXw0Ruz9M&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> <br /> <br /> <br /> ==Summary: Scrum Gathering in Seattle==<br /> &lt;html&gt;&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed//pjempylJy1w&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> <br /> <br /> This is a summary of the talk:<br /> ===History===<br /> * Initial Goal: build the lightest chassis.<br /> * Share on the blog<br /> ** asked silly and nerdy questions<br /> * passes technical deliverables for the [http://www.xprize.org/ X prize].<br /> ** became finalist to compete with 136 cars, most of them funded by millions of dollars<br /> ** iterating the car at the race track, inspired a higher driver of a team competing against WikiSpeed to spend a lot of time hanging out with the Team.<br /> ** got 10th place.<br /> ** Received several tens of thousands of dollars in road legal certification and testing.<br /> ** Press<br /> * Team grew: 56 members in 6 countries.<br /> <br /> ===Learned===<br /> <br /> * Contract-first Design: by Modules.<br /> ** Suspension - changed for 10 minutes - adjustable in caster, tow?, camber, wheel-base and track, individually per wheel.<br /> ** Interior in the race car version - aluminum bathtub that lifts out. The 4-seat interior for the contest can be easily exchanged with the 2-seat interior for testing.<br /> ** Engine - at the back of the car. The entire Power Train, with its transmission, fuel tank and cooling system can be rolled out in the time it takes to change a tire while it is running. This let us have one engine on the test bench being evaluated and another engine in the car doing testing, bring the car, switch the engines, test the other one - able to develop and test engines independently of each other.<br /> ** Chassis - all other modules connect to. Side, front, front impact. Peak stress. Our entire car absorbs the weight. 5 star crash rating equivalence.<br /> ** Car Body - cut foam with CNC machine from a CAD design, sand it, (70 volunteers in 6 countries in multiple locations)<br /> *** from Structural Carbon Fiber (normally used in airspace and exotic automobiles) was really expensive, but the material itself wasn't expensive, but the knowledge how to use it was. So Joe Justice went to composite school for few weeks and then they built the carbon fiber body for $800 in 3 days (body would cost $36,000 in 3 months time with traditional manufacturing techniques).<br /> * Went to [http://www.naias.com/ North American International Auto Show] - put WikiSpeed on the main floor between Ford and Chevrolet. Met the creator of the car body, Rob Mohrbacher of http://mohrcomposites.com from [http://en.wikipedia.org/wiki/Germantown,_Montgomery_County,_Maryland Germantown, Maryland].<br /> <br /> ===How - Agile and Scrum===<br /> <br /> * Weekly stand-up meetings<br /> * prioritized backlogs<br /> * and demos<br /> <br /> ====Tools====<br /> * FreeConferenceCall - for stand-up meeting<br /> ** What I did, what I will do, what is blocking me<br /> * Skype free<br /> * Google Groups - up-to-date daily, pictures, updates, backlog from a Google Doc<br /> * Google Docs - documents collaboration<br /> ** Trust the Team. It is versioned - who changed, what when. Can be reverted.<br /> * Avoid planning more than 2 weeks out - we learn so fast that things change what we will do next<br /> * Facebook and LinkedIn for team and public status updates.<br /> ** don't repeat information sharing. <br /> * DropBox and SkyDrive for sharing large files<br /> * Youtube to share videos<br /> * Scrumy - online project management tool loosely based on Scrum.<br /> * Linoit.com - for backlog http://linoit.com<br /> * LibreCAD - open source CAD for Windows, Apple, Linux<br /> * Email Lists<br /> ** Always Reply All to approximate being in a Scrum room. Allows distributed team to skim emails and be appraised of the current state of the project.&lt;ref&gt;http://futureofprojectmanagement.com/2011/12/02/joe-justice-built-a-100mpg-car-using-principles-of-agile-lean-and-scrum-how-did-he-do-it/&lt;/ref&gt;<br /> <br /> ====Principles - What worked well====<br /> * By minimizing cost of making change we innovate quickly. Changes in team members, changes in goals, changes in machinery, changes materials.<br /> * By loosely coupling modules, we make changes in parallel.<br /> ** E.g. split the car into its component modules. Have people working on the suspension system, drive train, emission system, headlights, electronic control mechanism, all in parallel.<br /> ** Modularity: Interior module, Chassis, Pedal Plate, Front Crush Structure, Suspension Module, Engine, Transmission, Fuel System, Emission System, Fuel Injection System, Breaking system.<br /> ** When we started designing the car, we didn't know how the chassis would end up being like, we didn't know what type of drive train, type of suspension, we will be using. So what we wanted to do is to reduce the cost to make change between those parts. So we architect a contract - the way these modules will talk to each other and hold together in a structural way and the way they communicate.<br /> * By working collaboratively and in shared space we unblock quickly.<br /> ** E.g. every time we had a blocking issues the team was able to bulldoze it that same day. Pairing and Swarming worked very well.<br /> * By first automating test we quickly know if we improved. (Test-driven manufacturing)<br /> ** Example<br /> *** 100mpg on a highway cycle<br /> *** etc.<br /> ** When changes came we quickly knew whether we moved entirely forward, or moved forward on a few fronts, but actually backed on to other fronts. So we had to quickly kill work that would have been actually damaging and thus we were moving forward very fast.<br /> * Test our success criteria - everyone cared about the metrics!<br /> * Team morale (motivation) is a multiplier for velocity.<br /> ** Make sure people are never or rarely frustrated and that they get to share successes. Celebrating every iteration.<br /> * Team trust is empowering<br /> ** Question access restrictions on documents, avoid group subjugation. Empowerment keeps velocity high.<br /> * Single Backlog - all prioritized tasks are visible and in one place<br /> <br /> ====Modular Inventory====<br /> * Whenever possible tools are visually next to their consumables.<br /> * Fewest possible categories always inside of each other (See everything from where you stand)<br /> * Minimize time spent doing anything but creative problem solving.<br /> ** E.g. - So it’s not just less meetings, less paperwork, but in our case it is that we have a transparent bin that has screw drivers. And every screw driver is in there. There is not a screw driver anywhere else. If someone needs a screwdriver, it’s at a central location not more than twenty steps away. And it’s a clear bin so that they can see if what they need is inside before they even get there. In fact they can see what’s in there across the room and it is labeled. In software teams we would do the same thing with templates, we would do the same thing with test driven development, we would do the same thing with class naming and interface design, so people understand what goes with what. (See references)<br /> <br /> ====From Software====<br /> * Agile - reduse cost to make change and iterative development<br /> * Test-Driven Design - tester and manufacturing<br /> * XP - pairing and swarming<br /> * [http://en.wikipedia.org/wiki/Scrum_(development) Scrum] - almost everything. Clearly defined roles and responsibilities.<br /> * OOP - clearly defined modules, classes and interfaces<br /> * [http://en.wikipedia.org/wiki/Kanban_(development) Kanban] - work in progress limits, not to overload people.<br /> * Contract First Development - Define precise and verifiable component interface specifications.<br /> <br /> ====Wikispeed Future Developments====<br /> * Making a family car<br /> * Developing a truck<br /> <br /> <br /> <br /> =Wikispeed Tenets=<br /> <br /> * If I give money, time, cookies or supplies to WIKISPEED, and WIKISPEED is profitable, WIKISPEED will pay me back the value of what I put in plus interest commensurable with their level of success. I can choose not to accept repayment, but WIKISPEED will make reasonable attempts. This is based on value, not quantity (in hours, pounds, dollars, or word count).<br /> * If I give money, time, cookies or supplies to WIKISPEED, I have no claim on WIKISPEED or its decisions or what it does with my resources after I give them. Other than tenant 1 above.<br /> * If I share my best thoughts and work with WIKISPEED, WIKISPEED can use them at no cost, and I retain rights to re-use or protect my ideas unless I opt to bequeath them to WIKISPEED or the Public Domain.<br /> <br /> =Wikispeed Principles=<br /> <br /> * Equitable Distribution of Wealth.<br /> * Avoid profit from waste (e.g. buying a competitor to shut them down). Grow profit based on visible value.<br /> * If we focus on profit over value to customers, we will obtain neither. If we focus on visible customer value over profit, we will profit.<br /> * Use less stuff (Lean) wherever responsible.<br /> * Make decisions at the last responsible moment, this is when we know the most. but be careful not to wait until it is no-longer responsible. We never make a decision before we have to just to &quot;get it out of the way.&quot;<br /> * Start with the minimum useful solution (porters on roller-skates over a mail-chute), then iterate aggressively to improve visible value and efficient sustainability of the solution.<br /> * Morale is a multiplier for velocity.<br /> * We trade estimated future states for knowing the most about our current situation and make changes quickly (Agility).<br /> * Trust our team. this avoids a culture of CYA, which slows down innovation and kills morale. e.g. a company which spends $6 million on intranet security allowing employees to not see documents above their salary level to avoid leaking potentially libelous documents, instead of $6 million having interns and attorneys aggressively helping all levels of the org identify documents that are potentially libelous, which are usually a sign of unethical action, coach them on how to rectify those situations ASAP as a company with help from all levels of the company).<br /> * Replace a document with a conversation. Instead of writing a specification document, have a white boarding conversation in a room where as many other team members as possible can over-hear. Take pictures of the white board when you are done and email the team. Documents have a maintenance cost.<br /> * Produce self-documenting work- a car with a navigation that teaches you how to use it instead of a manual. Can you imagine if Internet Explorer still shipped with a manual? We expect it to be self explanatory. Documents are a hidden expense, requiring editing and re-write to match the current version. <br /> * Try not to do something alone, pair with another team member whenever responsible. This aids in knowledge transfer and avoids requirements for documentation.<br /> <br /> =Wikispeed Designs=<br /> Here is a link to a folder created to collect Wikispeed CAD files generated in FreeCAD from the original LibreCAD designs (October, 2021):<br /> *[https://drive.google.com/drive/folders/1GAIUHd30GpRXTiXqMG_EyQLQiRxQycsL?usp=sharing]<br /> <br /> =References=<br /> <br /> *CNN on Management a la Wikispeed - [http://management.fortune.cnn.com/2012/06/18/how-companies-ought-to-train-their-staffers/]<br /> *[http://agileinc.wordpress.com/on-the-road-3/sglon/]<br /> *[http://futureofprojectmanagement.com/2011/12/02/joe-justice-built-a-100mpg-car-using-principles-of-agile-lean-and-scrum-how-did-he-do-it/]<br /> {{Reflist}}<br /> [[Category:Wikispeed]]<br /> [[Category:Open Source Automobile]]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=254170 2021-06-09T17:25:29Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Thursday August 6, 2020 - Wednesday June 9, 2021=<br /> *Slow pace of collaboration due to pandemic<br /> *Developed numerous lesson plans and approaches using Python and Blender<br /> =Monday June 22 - Wednesday August 5=<br /> *Further development of ALT-L Course.<br /> *Delivered D3D to collaborator Bill Phelan from local company, Die-X.<br /> =Monday June 1 - Sunday June 21=<br /> [https://www.youtube.com/watch?v=G72eEatmIX0&amp;t=10s ALT-L Introduction Video] ALT-L is presented as a preliminary step in developing an entire school curriculum based on the idea of coherence and connection. There is a potential to link this project to a wider set of Open Source Ecology workshops that consider an entirely different approach to the education system.<br /> =Saturday May 9 - Sunday May 31=<br /> More work on [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing ALT-L] - &quot;Alternative Learning&quot; - Accelerated math and computer programming course for secondary school students.<br /> [https://youtu.be/xjL4-1S7Was Youtube video on use of Spreadsheets in FreeCAD]<br /> <br /> =<br /> =Wednesday May 6-Friday May 8=<br /> [[Open Source Collaboration Mini Course]]<br /> Call with Marcin - August Remote Camp.<br /> https://wiki.opensourceecology.org/wiki/Andreas_Log#Thur-Fri_Apr_23-4.2C_2020<br /> https://wiki.opensourceecology.org/wiki/Test<br /> https://wiki.opensourceecology.org/wiki/OSE_Collaboration_Protocol<br /> =Friday March 27 - Tuesday May 5=<br /> Worked on &quot;[https://docs.google.com/document/d/1_5LJo8GXV5Ct1f57bD4fB8xC0wyT9iANtgPVj-Dev0M/edit?usp=sharing ALT-L],&quot; an accelerated mathematics and computer programming curriculum for secondary school students. The course is under development [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing here] with two groups of students from eight countries meeting twice weekly over Zoom. Created a related [https://docs.google.com/document/d/1QXsDVR2iXecT_T-NM8DEwA4o-Yh6eCNfLf4ze8VFVyM/edit?usp=sharing training manual] for the Guyana Prison system using open source technologies such as Linux and Python.<br /> <br /> =Sunday February 16 - Thursday March 26=<br /> Work on OSE Challenging due to work, community and global crisis. <br /> =Friday February 14 - Saturday February 15=<br /> Personal Build Wishlist - Continued<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist] - Still under development<br /> <br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=229644 2020-08-05T18:36:49Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Monday June 22 - Wednesday August 5=<br /> *Further development of ALT-L Course.<br /> *Delivered D3D to collaborator Bill Phelan from local company, Die-X.<br /> =Monday June 1 - Sunday June 21=<br /> [https://www.youtube.com/watch?v=G72eEatmIX0&amp;t=10s ALT-L Introduction Video] ALT-L is presented as a preliminary step in developing an entire school curriculum based on the idea of coherence and connection. There is a potential to link this project to a wider set of Open Source Ecology workshops that consider an entirely different approach to the education system.<br /> =Saturday May 9 - Sunday May 31=<br /> More work on [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing ALT-L] - &quot;Alternative Learning&quot; - Accelerated math and computer programming course for secondary school students.<br /> [https://youtu.be/xjL4-1S7Was Youtube video on use of Spreadsheets in FreeCAD]<br /> <br /> =Wednesday May 6-Friday May 8=<br /> [[Open Source Collaboration Mini Course]]<br /> Call with Marcin - August Remote Camp.<br /> https://wiki.opensourceecology.org/wiki/Andreas_Log#Thur-Fri_Apr_23-4.2C_2020<br /> https://wiki.opensourceecology.org/wiki/Test<br /> https://wiki.opensourceecology.org/wiki/OSE_Collaboration_Protocol<br /> =Friday March 27 - Tuesday May 5=<br /> Worked on &quot;[https://docs.google.com/document/d/1_5LJo8GXV5Ct1f57bD4fB8xC0wyT9iANtgPVj-Dev0M/edit?usp=sharing ALT-L],&quot; an accelerated mathematics and computer programming curriculum for secondary school students. The course is under development [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing here] with two groups of students from eight countries meeting twice weekly over Zoom. Created a related [https://docs.google.com/document/d/1QXsDVR2iXecT_T-NM8DEwA4o-Yh6eCNfLf4ze8VFVyM/edit?usp=sharing training manual] for the Guyana Prison system using open source technologies such as Linux and Python.<br /> <br /> =Sunday February 16 - Thursday March 26=<br /> Work on OSE Challenging due to work, community and global crisis. <br /> =Friday February 14 - Saturday February 15=<br /> Personal Build Wishlist - Continued<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist] - Still under development<br /> <br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=225740 2020-06-21T19:26:02Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Monday June 1 - Sunday June 21=<br /> [https://www.youtube.com/watch?v=G72eEatmIX0&amp;t=10s ALT-L Introduction Video] ALT-L is presented as a preliminary step in developing an entire school curriculum based on the idea of coherence and connection. There is a potential to link this project to a wider set of Open Source Ecology workshops that consider an entirely different approach to the education system.<br /> =Saturday May 9 - Sunday May 31=<br /> More work on [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing ALT-L] - &quot;Alternative Learning&quot; - Accelerated math and computer programming course for secondary school students.<br /> [https://youtu.be/xjL4-1S7Was Youtube video on use of Spreadsheets in FreeCAD]<br /> <br /> =Wednesday May 6-Friday May 8=<br /> [[Open Source Collaboration Mini Course]]<br /> Call with Marcin - August Remote Camp.<br /> https://wiki.opensourceecology.org/wiki/Andreas_Log#Thur-Fri_Apr_23-4.2C_2020<br /> https://wiki.opensourceecology.org/wiki/Test<br /> https://wiki.opensourceecology.org/wiki/OSE_Collaboration_Protocol<br /> =Friday March 27 - Tuesday May 5=<br /> Worked on &quot;[https://docs.google.com/document/d/1_5LJo8GXV5Ct1f57bD4fB8xC0wyT9iANtgPVj-Dev0M/edit?usp=sharing ALT-L],&quot; an accelerated mathematics and computer programming curriculum for secondary school students. The course is under development [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing here] with two groups of students from eight countries meeting twice weekly over Zoom. Created a related [https://docs.google.com/document/d/1QXsDVR2iXecT_T-NM8DEwA4o-Yh6eCNfLf4ze8VFVyM/edit?usp=sharing training manual] for the Guyana Prison system using open source technologies such as Linux and Python.<br /> <br /> =Sunday February 16 - Thursday March 26=<br /> Work on OSE Challenging due to work, community and global crisis. <br /> =Friday February 14 - Saturday February 15=<br /> Personal Build Wishlist - Continued<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist] - Still under development<br /> <br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=223408 2020-05-31T20:41:12Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Saturday May 9 - Sunday May 31=<br /> More work on [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing ALT-L] - &quot;Alternative Learning&quot; - Accelerated math and computer programming course for secondary school students.<br /> [https://youtu.be/xjL4-1S7Was Youtube video on use of Spreadsheets in FreeCAD]<br /> <br /> =Wednesday May 6-Friday May 8=<br /> [[Open Source Collaboration Mini Course]]<br /> Call with Marcin - August Remote Camp.<br /> https://wiki.opensourceecology.org/wiki/Andreas_Log#Thur-Fri_Apr_23-4.2C_2020<br /> https://wiki.opensourceecology.org/wiki/Test<br /> https://wiki.opensourceecology.org/wiki/OSE_Collaboration_Protocol<br /> =Friday March 27 - Tuesday May 5=<br /> Worked on &quot;[https://docs.google.com/document/d/1_5LJo8GXV5Ct1f57bD4fB8xC0wyT9iANtgPVj-Dev0M/edit?usp=sharing ALT-L],&quot; an accelerated mathematics and computer programming curriculum for secondary school students. The course is under development [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing here] with two groups of students from eight countries meeting twice weekly over Zoom. Created a related [https://docs.google.com/document/d/1QXsDVR2iXecT_T-NM8DEwA4o-Yh6eCNfLf4ze8VFVyM/edit?usp=sharing training manual] for the Guyana Prison system using open source technologies such as Linux and Python.<br /> <br /> =Sunday February 16 - Thursday March 26=<br /> Work on OSE Challenging due to work, community and global crisis. <br /> =Friday February 14 - Saturday February 15=<br /> Personal Build Wishlist - Continued<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist] - Still under development<br /> <br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=220123 2020-05-08T19:47:45Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Wednesday May 6-Friday May 8=<br /> [[Open Source Collaboration Mini Course]]<br /> Call with Marcin - August Remote Camp.<br /> https://wiki.opensourceecology.org/wiki/Andreas_Log#Thur-Fri_Apr_23-4.2C_2020<br /> https://wiki.opensourceecology.org/wiki/Test<br /> https://wiki.opensourceecology.org/wiki/OSE_Collaboration_Protocol<br /> =Friday March 27 - Tuesday May 5=<br /> Worked on &quot;[https://docs.google.com/document/d/1_5LJo8GXV5Ct1f57bD4fB8xC0wyT9iANtgPVj-Dev0M/edit?usp=sharing ALT-L],&quot; an accelerated mathematics and computer programming curriculum for secondary school students. The course is under development [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing here] with two groups of students from eight countries meeting twice weekly over Zoom. Created a related [https://docs.google.com/document/d/1QXsDVR2iXecT_T-NM8DEwA4o-Yh6eCNfLf4ze8VFVyM/edit?usp=sharing training manual] for the Guyana Prison system using open source technologies such as Linux and Python.<br /> <br /> =Sunday February 16 - Thursday March 26=<br /> Work on OSE Challenging due to work, community and global crisis. <br /> =Friday February 14 - Saturday February 15=<br /> Personal Build Wishlist - Continued<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist] - Still under development<br /> <br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=220121 2020-05-08T19:31:37Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Wednesday May 6-Friday May 8=<br /> Call with Marcin - August Remote Camp.<br /> https://wiki.opensourceecology.org/wiki/Andreas_Log#Thur-Fri_Apr_23-4.2C_2020<br /> https://wiki.opensourceecology.org/wiki/Test<br /> https://wiki.opensourceecology.org/wiki/OSE_Collaboration_Protocol<br /> =Friday March 27 - Tuesday May 5=<br /> Worked on &quot;[https://docs.google.com/document/d/1_5LJo8GXV5Ct1f57bD4fB8xC0wyT9iANtgPVj-Dev0M/edit?usp=sharing ALT-L],&quot; an accelerated mathematics and computer programming curriculum for secondary school students. The course is under development [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing here] with two groups of students from eight countries meeting twice weekly over Zoom. Created a related [https://docs.google.com/document/d/1QXsDVR2iXecT_T-NM8DEwA4o-Yh6eCNfLf4ze8VFVyM/edit?usp=sharing training manual] for the Guyana Prison system using open source technologies such as Linux and Python.<br /> <br /> =Sunday February 16 - Thursday March 26=<br /> Work on OSE Challenging due to work, community and global crisis. <br /> =Friday February 14 - Saturday February 15=<br /> Personal Build Wishlist - Continued<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist] - Still under development<br /> <br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=219621 2020-05-05T19:03:15Z

<p>Wneal: /* Friday March 27-Tuesday May 5 */</p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Friday March 27 - Tuesday May 5=<br /> Worked on &quot;[https://docs.google.com/document/d/1_5LJo8GXV5Ct1f57bD4fB8xC0wyT9iANtgPVj-Dev0M/edit?usp=sharing ALT-L],&quot; an accelerated mathematics and computer programming curriculum for secondary school students. The course is under development [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing here] with two groups of students from eight countries meeting twice weekly over Zoom. Created a related [https://docs.google.com/document/d/1QXsDVR2iXecT_T-NM8DEwA4o-Yh6eCNfLf4ze8VFVyM/edit?usp=sharing training manual] for the Guyana Prison system using open source technologies such as Linux and Python.<br /> <br /> =Sunday February 16 - Thursday March 26=<br /> Work on OSE Challenging due to work, community and global crisis. <br /> =Friday February 14 - Saturday February 15=<br /> Personal Build Wishlist - Continued<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist] - Still under development<br /> <br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=219620 2020-05-05T19:02:52Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Friday March 27-Tuesday May 5=<br /> Worked on &quot;[https://docs.google.com/document/d/1_5LJo8GXV5Ct1f57bD4fB8xC0wyT9iANtgPVj-Dev0M/edit?usp=sharing ALT-L],&quot; an accelerated mathematics and computer programming curriculum for secondary school students. The course is under development [https://drive.google.com/drive/folders/14da63JcyEaM5CfdXjSi5G1Vll_hHTj9k?usp=sharing here] with two groups of students from eight countries meeting twice weekly over Zoom. Created a related [https://docs.google.com/document/d/1QXsDVR2iXecT_T-NM8DEwA4o-Yh6eCNfLf4ze8VFVyM/edit?usp=sharing training manual] for the Guyana Prison system using open source technologies such as Linux and Python.<br /> =Sunday February 16 - Thursday March 26=<br /> Work on OSE Challenging due to work, community and global crisis. <br /> =Friday February 14 - Saturday February 15=<br /> Personal Build Wishlist - Continued<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist] - Still under development<br /> <br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=214812 2020-03-26T16:28:47Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> <br /> =Sunday February 16 - Thursday March 26=<br /> Work on OSE Challenging due to work, community and global crisis. <br /> =Friday February 14 - Saturday February 15=<br /> Personal Build Wishlist - Continued<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist] - Still under development<br /> <br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=211371 2020-02-15T19:10:15Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Friday February 14 - Saturday February 15=<br /> Personal Build Wishlist - Continued<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist] - Still under development<br /> <br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=Summer_X_Wishlist_Submissions&diff=211359 2020-02-15T17:31:53Z

<p>Wneal: /* Summer X 2020 Submissions */</p> <hr /> <div>=Summer X 2020 Submissions=<br /> <br /> * [https://docs.google.com/document/d/1w6Mw5kL1liwWX3TipvWqXbQAFplcMIS8ndywkw7jgb0/edit# Daniel]<br /> * [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=211229 2020-02-14T02:15:55Z

<p>Wneal: /* Friday February 7 - Thursday February 13 */</p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist] - Still under development<br /> <br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=211228 2020-02-14T02:15:35Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Friday February 7 - Thursday February 13=<br /> [https://docs.google.com/document/d/11DUqroMKjpKGh2WxIpkJfl5HaPJJzIl8uK6saErtpgs/edit?usp=sharing William Neal Personal Build Wishlist]<br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=210600 2020-02-06T18:07:41Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Monday, December 2 - Thursday Feb. 6, 2020=<br /> End of semester disruption; start of semester disruption - a huge amount of time and effort spent on paperwork instead of education. Start of FRC robotics season. Start of computer programming and computer engineering classes. <br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204716 2019-12-05T19:15:03Z

<p>Wneal: /* Bill of Materials */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> [https://docs.google.com/spreadsheets/d/148mDOMKK5PmyQCcDgddZVEb9jIzrWAqZG4GRGYTVFIg/edit?usp=sharing OSE Prusa Bill of Materials]<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials. <br /> #Follow the suggested directions in the following sections:<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z-Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> <br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> File:OSEPrusaBedPlate.png|''' OSE Prusa Bed Plate''' - FreeCad = [[File:OSEPrusaBedPlate.FCStd]]<br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]<br /> <br /> ==Build Notes - December 1, 2019==<br /> *The build was completed relatively quickly despite the fact that the printed parts were all first prototype copies. Most of the bolt holes had to be drilled slightly. There were several other parts that needed additional holes drilled:<br /> <br /> ===3D Printing Issues===<br /> #X-Axis Motor Mount - Additional hole to allow for the smooth rod to pass through. Enlarge motor mount holes. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #X-Axis Idler - Additional hole to allow for the smooth rod to pass through. Enlarge holes for bearing bolt. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #Extruder Mount Bracket - increase the width of the GT2 belt slightly<br /> #Y-Axis Motor Mount - Increase hole diameter of motor mount holes.<br /> #Y-Axis Idler - increase diameter of holes for the bearing bolt<br /> #Z-Axis Top Brackets - 4mm holes for attachment to frame<br /> #Z-Axis Motor Mounts - 3mm holes need to enlarge.<br /> #Bed Brackets - Small notches for zip ties.<br /> ===Other Issues===<br /> #Extruder Aluminum Block - Holes were not quite the right separation - had to be drilled slightly<br /> <br /> ==Notes for Tiffany and Ganesh==<br /> *to prepare the OSE Prusa for its first print test.<br /> *Here is a checklist of items to prepare:<br /> #Install the spring on the extruder. <br /> ##The idler bracket may need to be removed to do so.<br /> ##If the spring is too tight, the extruder motor may not be able to turn.<br /> ###Try increasing the extruder Pololu voltage to some value between 0.5V and 1.0V if this is the case (keep the voltage as low as possible)<br /> ##If the spring is too loose, the gear will slip on the filament. Try putting a small object under the spring to slightly increase its tension.<br /> #Slightly shorten a few of the screws on the Extruder.<br /> #Solder the two fans with longer wires. Cut the fan wire and solder the longer piece in between so that you may plug the Extruder fan to the board at the D9 terminals.<br /> #Position the large fan on the top frame crossbar at a 45 degree angle from vertical, directed towards the RAMPS and Arduino. Plug the large fan directly into the 12V power supply.<br /> #Tighten the springs on the printer bed so that it stays in place as the Y-Axis moves<br /> #Fasten the power supply to the side of the printer.<br /> #Run the Z-Axis motor wires and Endstop Wires along the frame and secure them with Zip Ties<br /> #Create a roller for the filament. A metre stick suspended by two boxes may act as a quick start in this regard.<br /> #Realign and reposition the Z-Axis Endstop so that the extruder tip stops just above the printer bed.<br /> #Cover the bed with masking tape.</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204566 2019-12-02T21:41:37Z

<p>Wneal: /* Notes for Tiffany and Ganesh */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> [https://www.amazon.ca/gp/product/B01BZ5ND8O/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&amp;psc=1 OSE Prusa Bill of Materials]<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials. <br /> #Follow the suggested directions in the following sections:<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z-Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> <br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> File:OSEPrusaBedPlate.png|''' OSE Prusa Bed Plate''' - FreeCad = [[File:OSEPrusaBedPlate.FCStd]]<br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]<br /> <br /> ==Build Notes - December 1, 2019==<br /> *The build was completed relatively quickly despite the fact that the printed parts were all first prototype copies. Most of the bolt holes had to be drilled slightly. There were several other parts that needed additional holes drilled:<br /> <br /> ===3D Printing Issues===<br /> #X-Axis Motor Mount - Additional hole to allow for the smooth rod to pass through. Enlarge motor mount holes. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #X-Axis Idler - Additional hole to allow for the smooth rod to pass through. Enlarge holes for bearing bolt. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #Extruder Mount Bracket - increase the width of the GT2 belt slightly<br /> #Y-Axis Motor Mount - Increase hole diameter of motor mount holes.<br /> #Y-Axis Idler - increase diameter of holes for the bearing bolt<br /> #Z-Axis Top Brackets - 4mm holes for attachment to frame<br /> #Z-Axis Motor Mounts - 3mm holes need to enlarge.<br /> #Bed Brackets - Small notches for zip ties.<br /> ===Other Issues===<br /> #Extruder Aluminum Block - Holes were not quite the right separation - had to be drilled slightly<br /> <br /> ==Notes for Tiffany and Ganesh==<br /> *to prepare the OSE Prusa for its first print test.<br /> *Here is a checklist of items to prepare:<br /> #Install the spring on the extruder. <br /> ##The idler bracket may need to be removed to do so.<br /> ##If the spring is too tight, the extruder motor may not be able to turn.<br /> ###Try increasing the extruder Pololu voltage to some value between 0.5V and 1.0V if this is the case (keep the voltage as low as possible)<br /> ##If the spring is too loose, the gear will slip on the filament. Try putting a small object under the spring to slightly increase its tension.<br /> #Slightly shorten a few of the screws on the Extruder.<br /> #Solder the two fans with longer wires. Cut the fan wire and solder the longer piece in between so that you may plug the Extruder fan to the board at the D9 terminals.<br /> #Position the large fan on the top frame crossbar at a 45 degree angle from vertical, directed towards the RAMPS and Arduino. Plug the large fan directly into the 12V power supply.<br /> #Tighten the springs on the printer bed so that it stays in place as the Y-Axis moves<br /> #Fasten the power supply to the side of the printer.<br /> #Run the Z-Axis motor wires and Endstop Wires along the frame and secure them with Zip Ties<br /> #Create a roller for the filament. A metre stick suspended by two boxes may act as a quick start in this regard.<br /> #Realign and reposition the Z-Axis Endstop so that the extruder tip stops just above the printer bed.<br /> #Cover the bed with masking tape.</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204565 2019-12-02T21:39:22Z

<p>Wneal: /* Notes for Tiffany and Ganesh */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> [https://www.amazon.ca/gp/product/B01BZ5ND8O/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&amp;psc=1 OSE Prusa Bill of Materials]<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials. <br /> #Follow the suggested directions in the following sections:<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z-Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> <br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> File:OSEPrusaBedPlate.png|''' OSE Prusa Bed Plate''' - FreeCad = [[File:OSEPrusaBedPlate.FCStd]]<br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]<br /> <br /> ==Build Notes - December 1, 2019==<br /> *The build was completed relatively quickly despite the fact that the printed parts were all first prototype copies. Most of the bolt holes had to be drilled slightly. There were several other parts that needed additional holes drilled:<br /> <br /> ===3D Printing Issues===<br /> #X-Axis Motor Mount - Additional hole to allow for the smooth rod to pass through. Enlarge motor mount holes. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #X-Axis Idler - Additional hole to allow for the smooth rod to pass through. Enlarge holes for bearing bolt. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #Extruder Mount Bracket - increase the width of the GT2 belt slightly<br /> #Y-Axis Motor Mount - Increase hole diameter of motor mount holes.<br /> #Y-Axis Idler - increase diameter of holes for the bearing bolt<br /> #Z-Axis Top Brackets - 4mm holes for attachment to frame<br /> #Z-Axis Motor Mounts - 3mm holes need to enlarge.<br /> #Bed Brackets - Small notches for zip ties.<br /> ===Other Issues===<br /> #Extruder Aluminum Block - Holes were not quite the right separation - had to be drilled slightly<br /> <br /> ==Notes for Tiffany and Ganesh==<br /> *to prepare the OSE Prusa for its first print test.<br /> *Here is a checklist of items to prepare:<br /> #Install the spring on the extruder. <br /> ##The idler bracket may need to be removed to do so.<br /> ##If the spring is too tight, the extruder motor may not be able to turn.<br /> ###Try increasing the extruder Pololu voltage to some value between 0.5V and 1.0V if this is the case (keep the voltage as low as possible)<br /> ##If the spring is too loose, the gear will slip on the filament. Try putting a small object under the spring to slightly increase its tension.<br /> #Slightly shorten a few of the screws on the Extruder.<br /> #Solder the two fans with longer wires. Cut the fan wire and solder the longer piece in between so that you may plug the Extruder fan to the board at the D9 terminals.<br /> #<br /> #Tighten the springs on the printer bed so that it stays in place as the Y-Axis moves<br /> #Fasten the power supply to the side of the printer.<br /> #Run the Z-Axis motor wires and Endstop Wires along the frame and secure them with Zip Ties<br /> #Create a roller for the filament. A metre stick suspended by two boxes may act as a quick start in this regard.<br /> #Realign and reposition the Z-Axis Endstop so that the extruder tip stops just above the printer bed.<br /> #Cover the bed with masking tape.</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204564 2019-12-02T21:35:22Z

<p>Wneal: /* Other Issues */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> [https://www.amazon.ca/gp/product/B01BZ5ND8O/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&amp;psc=1 OSE Prusa Bill of Materials]<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials. <br /> #Follow the suggested directions in the following sections:<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z-Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> <br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> File:OSEPrusaBedPlate.png|''' OSE Prusa Bed Plate''' - FreeCad = [[File:OSEPrusaBedPlate.FCStd]]<br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]<br /> <br /> ==Build Notes - December 1, 2019==<br /> *The build was completed relatively quickly despite the fact that the printed parts were all first prototype copies. Most of the bolt holes had to be drilled slightly. There were several other parts that needed additional holes drilled:<br /> <br /> ===3D Printing Issues===<br /> #X-Axis Motor Mount - Additional hole to allow for the smooth rod to pass through. Enlarge motor mount holes. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #X-Axis Idler - Additional hole to allow for the smooth rod to pass through. Enlarge holes for bearing bolt. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #Extruder Mount Bracket - increase the width of the GT2 belt slightly<br /> #Y-Axis Motor Mount - Increase hole diameter of motor mount holes.<br /> #Y-Axis Idler - increase diameter of holes for the bearing bolt<br /> #Z-Axis Top Brackets - 4mm holes for attachment to frame<br /> #Z-Axis Motor Mounts - 3mm holes need to enlarge.<br /> #Bed Brackets - Small notches for zip ties.<br /> ===Other Issues===<br /> #Extruder Aluminum Block - Holes were not quite the right separation - had to be drilled slightly<br /> <br /> ==Notes for Tiffany and Ganesh==<br /> *to prepare the OSE Prusa for its first print test.<br /> *Here is a checklist of items to prepare:<br /> #Install the spring on the extruder. <br /> ##The idler bracket may need to be removed to do so.<br /> ##If the spring is too tight, the extruder motor may not be able to turn.<br /> ###Try increasing the extruder Pololu voltage to some value between 0.5V and 1.0V if this is the case (keep the voltage as low as possible)<br /> ##If the spring is too loose, the gear will slip on the filament. Try putting a small object under the spring to slightly increase its tension.<br /> #Tighten the springs on the printer bed so that it stays in place as the Y-Axis moves<br /> #Fasten the power supply to the side of the printer.<br /> #Run the Z-Axis motor wires and Endstop Wires along the frame and secure them with Zip Ties<br /> #Create a roller for the filament. A metre stick suspended by two boxes may act as a quick start in this regard.<br /> #Cover the bed with masking tape.</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204563 2019-12-02T21:26:28Z

<p>Wneal: /* =3D Printing Issues */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> [https://www.amazon.ca/gp/product/B01BZ5ND8O/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&amp;psc=1 OSE Prusa Bill of Materials]<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials. <br /> #Follow the suggested directions in the following sections:<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z-Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> <br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> File:OSEPrusaBedPlate.png|''' OSE Prusa Bed Plate''' - FreeCad = [[File:OSEPrusaBedPlate.FCStd]]<br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]<br /> <br /> ==Build Notes - December 1, 2019==<br /> *The build was completed relatively quickly despite the fact that the printed parts were all first prototype copies. Most of the bolt holes had to be drilled slightly. There were several other parts that needed additional holes drilled:<br /> <br /> ===3D Printing Issues===<br /> #X-Axis Motor Mount - Additional hole to allow for the smooth rod to pass through. Enlarge motor mount holes. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #X-Axis Idler - Additional hole to allow for the smooth rod to pass through. Enlarge holes for bearing bolt. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #Extruder Mount Bracket - increase the width of the GT2 belt slightly<br /> #Y-Axis Motor Mount - Increase hole diameter of motor mount holes.<br /> #Y-Axis Idler - increase diameter of holes for the bearing bolt<br /> #Z-Axis Top Brackets - 4mm holes for attachment to frame<br /> #Z-Axis Motor Mounts - 3mm holes need to enlarge.<br /> #Bed Brackets - Small notches for zip ties.<br /> ===Other Issues===<br /> #Extruder Aluminum Block - Holes were not quite the right separation - had to be drilled slightly</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204562 2019-12-02T21:24:36Z

<p>Wneal: /* Build Notes - December 1, 2019 */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> [https://www.amazon.ca/gp/product/B01BZ5ND8O/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&amp;psc=1 OSE Prusa Bill of Materials]<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials. <br /> #Follow the suggested directions in the following sections:<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z-Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> <br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> File:OSEPrusaBedPlate.png|''' OSE Prusa Bed Plate''' - FreeCad = [[File:OSEPrusaBedPlate.FCStd]]<br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]<br /> <br /> ==Build Notes - December 1, 2019==<br /> *The build was completed relatively quickly despite the fact that the printed parts were all first prototype copies. Most of the bolt holes had to be drilled slightly. There were several other parts that needed additional holes drilled:<br /> <br /> ===3D Printing Issues==<br /> #X-Axis Motor Mount - Additional hole to allow for the smooth rod to pass through. Enlarge motor mount holes. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #X-Axis Idler - Additional hole to allow for the smooth rod to pass through. Enlarge holes for bearing bolt. Increase diameter of brass nut holes (4 for 3m bolts and one for the brass nut itself)<br /> #Extruder Mount Bracket - increase the width of the GT2 belt slightly<br /> #Y-Axis Motor Mount - Increase hole diameter of motor mount holes.<br /> #Y-Axis Idler - increase diameter of holes for the bearing bolt<br /> #Z-Axis Top Brackets - 4mm holes for attachment to frame<br /> #Z-Axis Motor Mounts - 3mm holes need to enlarge.<br /> #Bed Brackets - Small notches for zip ties.<br /> ===Other Issues===<br /> #Extruder Aluminum Block - Holes were not quite the right separation - had to be drilled slightly</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204561 2019-12-02T21:08:52Z

<p>Wneal: /* Extruder */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> [https://www.amazon.ca/gp/product/B01BZ5ND8O/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&amp;psc=1 OSE Prusa Bill of Materials]<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials. <br /> #Follow the suggested directions in the following sections:<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z-Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> <br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> File:OSEPrusaBedPlate.png|''' OSE Prusa Bed Plate''' - FreeCad = [[File:OSEPrusaBedPlate.FCStd]]<br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]<br /> <br /> ==Build Notes - December 1, 2019==</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204560 2019-12-02T21:08:12Z

<p>Wneal: /* Build Instructions */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> [https://www.amazon.ca/gp/product/B01BZ5ND8O/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&amp;psc=1 OSE Prusa Bill of Materials]<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials. <br /> #Follow the suggested directions in the following sections:<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z-Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> <br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> File:OSEPrusaBedPlate.png|''' OSE Prusa Bed Plate''' - FreeCad = [[File:OSEPrusaBedPlate.FCStd]]<br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204559 2019-12-02T21:07:32Z

<p>Wneal: /* Z Axis */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> [https://www.amazon.ca/gp/product/B01BZ5ND8O/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&amp;psc=1 OSE Prusa Bill of Materials]<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z-Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> <br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> File:OSEPrusaBedPlate.png|''' OSE Prusa Bed Plate''' - FreeCad = [[File:OSEPrusaBedPlate.FCStd]]<br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204558 2019-12-02T21:07:08Z

<p>Wneal: /* Part Library */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> [https://www.amazon.ca/gp/product/B01BZ5ND8O/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&amp;psc=1 OSE Prusa Bill of Materials]<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> File:OSEPrusaBedPlate.png|''' OSE Prusa Bed Plate''' - FreeCad = [[File:OSEPrusaBedPlate.FCStd]]<br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204557 2019-12-02T21:05:40Z

<p>Wneal: /* Bill of Materials */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> [https://www.amazon.ca/gp/product/B01BZ5ND8O/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&amp;psc=1 OSE Prusa Bill of Materials]<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> <br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=204556 2019-12-02T20:31:13Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Saturday November 30 - Sunday December 1=<br /> Finished OSE Prusa Build in Guyana. Used [https://www.repetier.com/documentation/repetier-firmware/ Repetier Firmware] and [https://www.repetier.com/ Repetier Host] to control the printer.<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=204477 2019-11-30T13:21:26Z

<p>Wneal: /* Thursday November 28 - Friday November 29 */</p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]]. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=Introduction_to_Python&diff=204474 2019-11-30T00:46:32Z

<p>Wneal: </p> <hr /> <div>This page highlights an approach to rapid on-boarding in Python programming. Sample files with a few concepts are presented. Participants type in the files and then examine the behaviour of the resulting programs, learning the effect of a few Python keywords each step.<br /> <br /> &lt;source lang=&quot;Python&quot; line='line'&gt;<br /> <br /> #Quiz Program<br /> answer = input(&quot;What is the capital city of Guyana?&quot;)<br /> if answer == &quot;Georgetown&quot;:<br /> print(&quot;Good answer&quot;)<br /> elif answer == &quot;GT&quot;:<br /> print(&quot;Ok. We will accept that&quot;)<br /> else:<br /> print(&quot;What kind of an answer is that?&quot;)<br /> <br /> &lt;/source&gt;</div>

Wneal https://wiki.opensourceecology.org/index.php?title=Introduction_to_Python&diff=204473 2019-11-30T00:43:41Z

<p>Wneal: </p> <hr /> <div>This page highlights an approach to rapid on-boarding in Python programming. Sample files with a few concepts are presented. Participants type in the files and then examine the behaviour of the resulting programs, learning the effect of a few Python keywords each step.<br /> <br /> &lt;syntaxhighlight lang=&quot;Python&quot; line='line'&gt;<br /> <br /> #Quiz Program<br /> answer = input(&quot;What is the capital city of Guyana?&quot;)<br /> if answer == &quot;Georgetown&quot;:<br /> print(&quot;Good answer&quot;)<br /> elif answer == &quot;GT&quot;:<br /> print(&quot;Ok. We will accept that&quot;)<br /> else:<br /> print(&quot;What kind of an answer is that?&quot;)<br /> <br /> &lt;/syntaxhighlight&gt;</div>

Wneal https://wiki.opensourceecology.org/index.php?title=Introduction_to_Python&diff=204472 2019-11-30T00:42:28Z

<p>Wneal: Created page with &quot;This page highlights an approach to rapid on-boarding in Python programming. Sample files with a few concepts are presented. Participants type in the files and then examine...&quot;</p> <hr /> <div>This page highlights an approach to rapid on-boarding in Python programming. Sample files with a few concepts are presented. Participants type in the files and then examine the behaviour of the resulting programs, learning the effect of a few Python keywords each step.<br /> <br /> &lt;SyntaxHighlight lang=&quot;Python&quot; line='line'&gt;<br /> <br /> #Quiz Program<br /> answer = input(&quot;What is the capital city of Guyana?&quot;)<br /> if answer == &quot;Georgetown&quot;:<br /> print(&quot;Good answer&quot;)<br /> elif answer == &quot;GT&quot;:<br /> print(&quot;Ok. We will accept that&quot;)<br /> else:<br /> print(&quot;What kind of an answer is that?&quot;)<br /> <br /> &lt;/SyntaxHighlight&gt;</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=204471 2019-11-30T00:31:43Z

<p>Wneal: /* Thursday November 28 - Friday November 29 */</p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. [[Introduction to Python]] [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> <br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=204432 2019-11-29T20:28:12Z

<p>Wneal: </p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Thursday November 28 - Friday November 29=<br /> Workshop with the Guyana Prison Service - 12 prison staff from five facilities in Guyana. Reactivated 6 discarded computers using Ubuntu and OSE Linux. Introduction to Python programming. [https://m.facebook.com/groups/398759490316633?view=permalink&amp;id=1215623975296843 OSE Prusa Build]<br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=204373 2019-11-28T22:14:07Z

<p>Wneal: /* Thursday November 28 */</p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc. Showed the TED talk to our group of 12 prison officers from five facilities in Guyana.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=204371 2019-11-28T22:13:36Z

<p>Wneal: /* Saturday November 23 - Thursday November 28 */</p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Saturday November 23 Wednesday November 27=<br /> Workshop in Guyana with the Guyana Prison Service: The CSSP Project. This project aims to replace the current model of prison management with an approach based on human nobility, education and rehabilitation.<br /> =Thursday November 28=<br /> [[OSE Linux]] - we got six old computers working on Ubuntu using flash drives. Tomorrow will have an Open Source software workshop using OSE Linux on USB drives. We will use Python, FreeCAD, LibreOffice, etc.<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204370 2019-11-28T21:53:36Z

<p>Wneal: /* OSE Prusa */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]<br /> <br /> =Bill of Materials=<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> <br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=OSE_Prusa&diff=204369 2019-11-28T21:53:12Z

<p>Wneal: /* OSE Prusa */</p> <hr /> <div>=OSE Prusa=<br /> Based on a Chinese version of the Prusa i3 printer, this represents a simple and low-part-count option for the Open Source Ecology product system. (Nov. 22, 2019 We are in the process of replicating this printer and will assemble it in Guyana in late November, 2019.)<br /> [[https://photos.app.goo.gl/kMcaP3xVbS65nSns9 OSE Prusa Slideshow]]<br /> <br /> =Bill of Materials=<br /> <br /> =Build Instructions=<br /> #Purchase and organize all parts from the Bill of Materials<br /> ==Frame==<br /> #Make cuts in the 20mmx20mm aluminum extrusions: 400mmx3; 250mm*2; 320mm*2<br /> #Slide T-Nuts for the Y Axis Idler, Motor Mount and Mounting Brackets onto the 250mm aluminum extrusions<br /> #Slide T-Nuts for the Z-Axis Motor Mounts and Vertical Frame Mounts on two 400mm aluminum extrusions<br /> #Complete the 290mmx400mm horizontal frame by assembling a rectangle using the 290mm and 400mm extrusions and four corner brackets.<br /> #Place three corner brackets and one printer foot / printer foot bracket as feet for the horizontal frame.<br /> ==X-Axis==<br /> #Attach the X-Axis Motor to the X-Axis Motor Mount.<br /> #Place three LM8UU Linear Bearings in the X-Axis Carriage Bracket and fasten them in place with small zip ties.<br /> #Attach the X-Axis Motor Mount and X-Axis Carriage Bracket to the X-Axis Motor with two 8mm smooth rods (300mm).<br /> <br /> ==Y-Axis==<br /> #Attach the Y-Axis Motor to the Y Axis Motor Mount and both onto the Horizontal Frame.<br /> #Attach the Y-Axis Pulley to the Y Axis Idler Using an M5 bolt and nut.<br /> #Attach the Y-Axis Idler to the Horizontal Frame.<br /> #Assemble two 320mm extrusions with one 400mm extrusion to form the vertical frame.<br /> #Attach the Vertical Frame to the Horizontal Frame using two corner brackets and T-Nuts.<br /> #Attach LM8UU bearings to each of the Bed Mounting Brackets using Zip Ties.<br /> #Attach the Bed Mounting Brackets and Y-Axis Belt Holder to the aluminum bed plate.<br /> #Slide two 8mm rods through the LM8UU bearings.<br /> #Attach the Aluminum Bed Plate to the Horizontal Frame using the Y Axis Mounting Brackets. Make sure they are parallel and that the bed slides easily before tightening the screws.<br /> #Attach the Y Axis Belt around the Y-Axis Motor, Idler and Belt Holder.<br /> #Use small Zip Ties to hold the Y-Axis Belt in place with reasonable tension.<br /> #Further tension the Y-Axis Belt with a Clothes Pin Spring.<br /> ==Z Axis==<br /> #Attach the Z-Axis Top Left and Right Brackets to the front of the Vertical Frame Crossbar using T-Nuts.<br /> #Attach the Z-Axis Motors to the Z-Axis Motor Mounts using M3 bolts.<br /> #Attach the Z-Axis Couplers to the Z-Axis Acme Rods using the associated set-screws.<br /> #Place the Z-Axis Couplers on the Z-Axis Motor Axles.<br /> #Place the 8mm Smooth Rods in the related holes on the Z-Axis Motor Mounts.<br /> #Place the Brass Nuts of X-Axis on the Z-Axis by turning the Z-Axis Acme Rods.<br /> #Place the Z-Axis Smooth Rods in the related holes on the Top Left and Right Brackets.<br /> #Tighten the Top Left and Right Brackets when you have made the Z-Axis Vertical and ensured that the X-Axis may move smoothly up and down.<br /> ==Extruder==<br /> #Attach the Aluminum Extruder Block to the lower two holes of the Extruder Motor and Extruder Mounting Bracket using M3 screws.<br /> #Attach the Extruder Tube through the 6mm threaded hole of the Aluminum Extruder Block.<br /> #Wind two 6mm nuts up the Extruder Tube to make sure that it stays in place. The top of the Extruder Tube should be even with the top of the Aluminum Extruder Block.<br /> #Attach the Extruder Heater Block and Brass Nozzle to the Extruder Tube.<br /> #Attach the Extruder Idler to the Extruder Idler Bracket using an M4 screw and Nut<br /> #Attach the Extruder Bracket and Idler Bracket to the two top holes of the Extruder Motor using M3 screws.<br /> #Place the Extruder Tensioner Spring in the Extruder between the Idler Bracket and the Extruder Bracket.<br /> <br /> ==Electronics==<br /> #Solder wires on the Heated Bed.<br /> #Attach the Bed Thermistor to the Heated Bed<br /> #Place the Heating Resistor in the Extruder Heater Block.<br /> #Place the Extruder Thermistor in the Extruder Heater Block.<br /> #Place the X, Y and Z End-Stops in their Respective Positions on the Printer.<br /> #Prepare a Power Cable for the Power Supply.<br /> #Prepare Wires to run from the Power Supply to the RAMPS Board.<br /> #Prepare the Pololu Heat Sinks for the Pololu Drivers<br /> #Carefully Insert the Pololus in Position on the RAMPS Board.<br /> #Place the RAMPS Board on the Arduino.<br /> #Place the RAMPS and Arduino on the Back of the Vertical Frame Using the T-Nuts (already on the vertical frame) and M4 screws.<br /> #Run the wires of each electronics device along the frame to the RAMPS Board. Wrap the Extruder Wires and Y-Axis Wires in a Spiral Cable Carrier. Attach the wires neatly and securely to the framw using zip ties.<br /> #Attach all wires to the RAMPS Board.<br /> <br /> =Part Library=<br /> <br /> Here are the parts for the printer: (Nov. 23, 2019 - Note that the Y Belt Holder still needs to be drawn up in FreeCAD; we are still working on some minor edits to some of the parts - for the moment, we are drilling some holes in them for example)<br /> &lt;gallery perrow=6&gt;<br /> File:OSEPrusaXAxisIdler.png|'''OSE Prusa X Axis Idler''' - FreeCAD -[[File:OSEPrusaXAxisIdler.FCStd]]<br /> File:OSEPrusaXAxisMotorMount.png|'''OSE Prusa X Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> <br /> File:OSEPrusaYAxisIdler.png|'''OSE Prusa Y Axis Idler''' - FreeCAD -[[File:OSEPrusaYAxisIdler.FCStd]]<br /> File:OSEPrusaYAxisMotorMount.png'''OSE Prusa Y Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaXAxisMotorMount.FCStd]]<br /> File:OSEPrusaYAxisBracket.png'''OSE Prusa Y Axis Bracket''' - FreeCAD -[[File:OSEPrusaYAxisBracket.FCStd]]<br /> File:OSEPrusaYBeltHolder.png|'''OSE Prusa Y Belt Holder''' - FreeCAD -[[File:OSEPrusaYBeltHolder.FCStd]]<br /> <br /> File:OSEPrusaZAxisMotorMount.png|'''OSE Prusa Z Axis Motor Mount''' - FreeCAD -[[File:OSEPrusaZAxisMotorMount.FCStd]]<br /> File:OSEPrusaTopLeftBracket.png|'''OSE Prusa Top Left Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> File:OSEPrusaTopRightBracket.png|'''OSE Prusa Top Right Bracket''' - FreeCAD -[[File:OSEPrusaZAxisTopBracketLR.FCStd]]<br /> <br /> File:OSEPrusaPrinterFoot.png|'''OSE Prusa Printer Foot''' - FreeCAD -[[File:OSEPrusaPrinterFoot.FCStd]]<br /> <br /> File:OSEPrusaBedBracket.png|'''OSE Prusa Bed Bracket''' - FreeCAD -[[File:OSEPrusaBedBracket.FCStd]]<br /> <br /> &lt;/gallery&gt;<br /> ==Extruder==<br /> This printer makes use of the OSE D3D [[Simple Extruder]]</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=204360 2019-11-28T19:21:09Z

<p>Wneal: /* Saturday November 2 - Friday November 22 */</p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Saturday November 23 - Thursday November 28=<br /> Workshop in Guyana. CSSP Project<br /> [[OSE Linux]]<br /> [http://www.ubuntu.com Ubuntu Linux Page]<br /> [[New Page in the Wiki]]<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> ##Yet More<br /> *Items in a bullet list<br /> *More Items<br /> **Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal https://wiki.opensourceecology.org/index.php?title=William_Neal_Log&diff=204359 2019-11-28T19:20:13Z

<p>Wneal: /* Saturday November 2 - Friday November 22 */</p> <hr /> <div>{{RightTOC}}<br /> &lt;html&gt;&lt;iframe width=&quot;600&quot; height=&quot;600&quot; src=&quot;https://osedev.org/wiki/William?start=2/1/2017&quot;&gt;&lt;/iframe&gt;&lt;/html&gt;<br /> =Saturday November 23 - Thursday November 28=<br /> Workshop in Guyana. CSSP Project<br /> [[OSE Linux]]<br /> [http://www.ubuntu.com Ubuntu Linux Page]<br /> [[New Page in the Wiki]]<br /> <br /> =Saturday November 2 - Friday November 22=<br /> Worked on the [[OSE Prusa]] in order to support the establishment of a STEM centre in Trinidad and Tobago and to prepare for a workshop with the Government of Guyana.<br /> #Items in a numbered list<br /> #More Items<br /> #Yet More<br /> -Items in a bullet list<br /> -More Items<br /> -Yet More<br /> <br /> =Thursday October 24 - Friday November 1=<br /> *Tested printing on the London replication of the D3D printer for the first time.<br /> *Team of 9 students from Western university preparing a project around OSE - D3D replication + filament extruder replication + Chinese Reprap Prusa i3 reverse engineering.<br /> =Sunday October 12 - Wednesday October 23=<br /> *Updated some files used in the simple extruder build [https://wiki.opensourceecology.org/wiki/Simple_3D_Printer_Extruder#CAD here.]<br /> <br /> =Friday October 4 - Saturday October 11=<br /> *Successfully tested D3D simple extruder based on Chinese Prusa i3.<br /> *D3D challenge - Y axis end stop stopped working...<br /> *Almost finished replicating first of two D3D printers in London Ontario.<br /> *Preparing a D3D / Brushless motor workshop for the Guyana Prison Service. <br /> *FreeCAD activity completed at Western University - varied response of individuals in the groups - the allocated time was too short. <br /> =Friday September 27 - Thursday October 3=<br /> *Continued work on D3D build.<br /> *Experimenting with highly differentiated instruction unconstrained by government curricular concerns - our STEM club's three sections - Robotics / Computers and CAD / STEM projects have each gradually evolved over the last several weeks such that small groups of 1-4 students specialize on special tasks.<br /> *Introduced FreeCAD to a group of junior youth from a local neighborhood. After about 40 minutes each group of two participants completed a motor rotor design.<br /> *Second FreeCAD session with a group of 40 teacher candidate students at Western University's Althouse. Also used highly differentiated / interdisciplinary instruction with this group. After one hour and a half, most groups were able to generate several parts of a brushless motor and begin the process of parameterizing with a spreadsheet and creating an assembly. Some trained engineers in the crowd generated excellent &quot;propellers&quot; for the motor using advanced features.<br /> <br /> =Tuesday, September 1 - Thursday, September 26=<br /> *New School Year - over 40 students participating in our special STEM/Business/Arts program.<br /> *Two sections of our program, STEM Projects and Computer Programming/CAD, include OSE-related topics:<br /> **Building 3D printers<br /> **3D-printing<br /> **OSE Motor design and fabrication<br /> **Filament extruder<br /> **CAD<br /> *Building a 3D printer in collaboration with Bill Phelan, Vice President of Die-X Ltd.<br /> *Remote collaboration with Branko Misovic in Holland.<br /> *Preparing for a two-week 3D-printer build / open source hardware workshop in Guyana in November.<br /> *Working on simple extruder for the D3D printer.<br /> *Some 3D-printed parts for the D3D printer are not precise enough as they were printed with 1.0mm and 0.8mm nozzles. We are switching to a 0.4mm nozzle and re-printing.<br /> <br /> =Saturday July 27 - Monday September 1=<br /> *Preparation for STEM camps in China. <br /> *Travel to China. Caught behind firewall - Internet was actually a large Intranet - difficult to post, communicate or access any useful sites. <br /> *STEM Camp at Fujing Foreign language school - 10 days - 60 students, 1.5 hours daily - worked on FreeCAD and the OSE motor. <br /> *Built OSE D3D printer with eight 9-11 year-old students (10 days, 3 hours daily) at EIC Education in Shenzhen. The students assembled the axes and helped design some custom 3D-printed brackets for the frame which had to be made out of linear rail. The students learned FreeCAD and were able to design useful parts. Ganesh Ramsahai provided support in completing the build and configuration process. Presented the OSE D3D Shenzhen to the EIC Education Group with a half-hour overview and offer to provide remote support.<br /> *STEM Camp at Zhangjiagang Foreign Language School in Jiangsu province. 30 students, 3 days, 6 hours per day. Introduced FreeCAD and had the students design rotors and stators for the OSE brushless motor.<br /> *Showed the TED talk to four different groups.<br /> *Uploaded raw FreeCAD and stl files from the camps at Fujing Foreign Language School and Zhangjiagang Foreign Language School to [https://drive.google.com/open?id=1K7U8lEGqRgxwQf-WNX1Llbf-WE7LJCqL Google Drive]<br /> *Uploaded [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH custom files] generated during the build of the D3D 19.08 Shenzhen.<br /> <br /> =Saturday July 20 - Friday July 26=<br /> LIA summer STEM camp continued with 38 different students from Shenzhen, China. The students discussed, in the context of Marcin's TED Talk, the concept that the human mind, focused and in collaboration with others, has the power to make positive changes in society. Design of covers and caps for the OSE radial motor. Photos from the STEM Camp activities are [https://photos.app.goo.gl/zcpKk8jaFcDon31K7 here]. Trying to find the USB where we collected all the FreeCAD files. These will be posted ASAP.<br /> <br /> =Monday July 15 - Friday July 19=<br /> LIA summer STEM camp with 23 students from Vietnam and China. OSE Motor project part II - designing, printing and testing a radial motor. The motor concept was based on the following video: [https://www.youtube.com/watch?v=JkwLpAAfBVI 3D-Printed Axial Brushless Motor for Drones] Students were presented with the concept and asked to design such a motor from scratch using two rotors with eight disc magnets each and two sets of six wire loops.<br /> <br /> =Wednesday July 10 - Sunday July 14=<br /> Preparation for summer STEM Camps at LIA. Prepared 3D printers. Began replication of two D3D v19.06 units.<br /> =Friday June 28 - Tuesday July 9= <br /> Open Source Ecology Microfactory STEAM Camp<br /> =Thursday June 27=<br /> Titan Aero finally working better with 1.5 full turns + a little bit more for good measure - has not jammed all afternoon now - three parts printed. Logistics for Microfatory STEAM Camp - rented a vehicle and contacted a few participants. A prototype of the OSE extruder has been nearly completed. The extruder gear is scheduled to arrive at Factor e Farm by tomorrow. Then it will be ready for testing. [https://photos.app.goo.gl/fWUX8ynAdqcn6Fvs6 OSE D3D Extruder - Photo Album][https://drive.google.com/open?id=17BLyvyk1EbrMOhkCfeSwByAq86SemSLX Files]<br /> <br /> =Tuesday June 25 - Wednesday June 26=<br /> OSE D3D Extruder. Worked on attaching extruder to X-axis. Ordered extruder motor gears to arrive at FeF on Friday. Printed out bracket 1 successfully. Working on large aluminium block and designing x-axis adapter.<br /> =Monday June 24=<br /> Discussion about design of OSE Power Electronics. Problem - transformers are expensive and inflexible. Solution - research the feasibility of creating a 120V buck converter. Would it be sufficiently efficient and would it be feasible to build? Here are some potential parts to use: [https://www.digikey.ca/product-detail/en/comchip-technology/GBPC5010W-G/641-1389-ND/2074854 1kV Recifier] [https://www.digikey.ca/product-detail/en/ixys/IXFX120N65X2/IXFX120N65X2-ND/5629498?utm_adgroup=&amp;mkwid=sFMkJ49os&amp;pcrid=311971049444&amp;pkw=&amp;pmt=&amp;pdv=c&amp;productid=5629498&amp;slid=&amp;gclid=EAIaIQobChMIgbDd1fSC4wIVwkOGCh1f8gijEAQYAyABEgJGffD_BwE 650V MOSFET]. One problem seems to be that there may be a high level of energy loss in the circuit....[https://www.digikey.com/product-detail/en/everlight-electronics-co-ltd/H11L1S-TA/1080-1201-1-ND/2675935 Optocoupler] (to isolate the Arduino)[http://fpec.ucf.edu/teaching/EEL%205245%20Lectures/Lecture13%20Chapter4_BoostandBuckBoost_CCM_Analysis.pdf Some background theory]<br /> <br /> =Wednesday June 19 - Sunday June 23=<br /> DIY Buck Converter based on the following video (and others): https://www.youtube.com/watch?v=L5oeY53pE0E&amp;t=162s. [https://photos.app.goo.gl/kkHUwBQtD7h48mhB6 Photos.] All four 3D printers are down. A crucial piece of the extruder of the most reliable printer finally broke. CAD already done for the replacement part. Got the OSE D3D working again on Friday. Ready for printing on Monday - will print replacement part for other printer. Other 2 printers almost working...<br /> <br /> =Tuesday June 18=<br /> [https://www.pythonpowerelectronics.com/ Python Power Electronics]<br /> =Thursday June 13 - Monday June 17=<br /> Buck Converters. OSE [[Power Electronics]] research. Arduino as controller of Power electronics - frequency issues / limitations. Scalability of Power electronics - can we add modular components to increase voltage, current, etc.? <br /> =Tuesday June 11 - Wednesday June 12=<br /> Completed and sent CAD Drawings for OSE 3D Printer. Spent most of Wednesday working through a jam on the Titan Aero - it has jammed more in a few days than our other extruder has jammed in over three years.<br /> =Monday June 10=<br /> [https://drive.google.com/open?id=15T8RvnoHTTpCE67EQ1qFxhSbFp8B4yhH FreeCAD Drawings] for OSE 3D Printer. Note the use of parametric design in the CAD files - Spreadsheet values become variables used in constraint dimensions.<br /> The following is my most recent FreeCAD Parametric Part Design and Drawing Workflow:[[FreeCAD Workflow]]<br /> <br /> =Wednesday June 5 - Sunday June 9=<br /> [https://www.youtube.com/watch?v=CEhBN5_fO5o|DC-DC Buck Converters]<br /> Power Supply: Transformer + Buck Converter + Ripple Smoothing Circuitry<br /> =Tuesday June 4=<br /> *[[Arduino Controlled Power Supply]] - ordered many components.<br /> *Many electronic components specified in DIY articles and videos are now listed as obsolete. Finding replacement parts is not easy. Case in point: LM338K Linear Voltage Regulators - Listed as obsolete on the Mouser website and selling for $91 or more on the Digi-key website.<br /> *[https://www.eetimes.com/document.asp?doc_id=1333695# Article about obsolescence and demand and supply issues in the electronics industry]<br /> <br /> =Saturday June 1 - Monday June 3=<br /> Reviewed [[OSE Design Guides]] Reviewed [[DIY Semiconductors]] Microfactory STEAM Camp Critical Path [[Arduino Controlled Power Supply]] Fabrication of aluminium blocks for hot end for OSE 3D printer extruder. Parametric modelling in FreeCAD.<br /> <br /> =Tuesday May 28 - Friday May 31=<br /> [[Halbach Array Brushless Motor]]<br /> <br /> =Monday May 27= <br /> [https://www.youtube.com/watch?v=uOQk8SJso6Q How to Control an ESC with an Arduino] [https://photos.app.goo.gl/HMvWbigvuw3S26YG8 Test of the OSE Motor].<br /> <br /> =Friday May 24 - Sunday May 26= <br /> Not all that much.<br /> =Thursday May 23=<br /> Thank you to Marcin and Catarina for a refreshing, enlightening and enjoyable visit to Factor e Farm and the Seed Ecohome. Returned to London.<br /> =Wednesday May 22=<br /> Skype appointment - 12pm Missouri time - friend in Colombia. Uploaded FreeCAD files for D3D v19.04 Power Plug Case to Wiki. [https://en.wikipedia.org/wiki/Buck_converter Buck Converter]<br /> <br /> =Tuesday May 21=<br /> [https://www.powerelectronicsnews.com/problems-solutions/power-supply-design-tutorial Power Supply Design Tutorial] Edited the [https://docs.google.com/document/d/1_3t_97giFOtqJ4ExPZdYeVEilCRhMmu0IWLLpBCrG-0/edit?usp=sharing Video Script] <br /> Contacted STEM people in Nigeria and Pennsylvania based on the OSE STEAM Camp posted in this [https://www.facebook.com/groups/822455171229260/ Facebook Forum]<br /> Further communication with friends in Mexico regarding the STEAM camp. Contacted a friend of a friend in Kansas City - Baha'i Community.<br /> <br /> =Monday May 20=<br /> Posted Microfactory STEAM camp on several Facebook STEM/STEAM Education pages. [[The Living Curriculum]] [https://github.com/MarlinFirmware/Marlin/issues/8903 Marlin Bed Temperature Settings] Worked on the Titan-Aero extruder repairs. The two parts of the extruder tube must be fairly tight (but not too tight!) to avoid leakage.<br /> <br /> =Sunday May 19=<br /> Printing ABS using the OSE D3D - Set the bed temperature to 83 and the nozzle temperature to 255. After 5 minutes of printing, several layers were adhering well. Thermal runaway. Tried 80 and 244; thermal runaway again. Joined several online STEM/Education groups.<br /> <br /> =Saturday May 18=<br /> [[OSE Revenue Generation]] - Grameen Bank / Social Business - [[OSE Curriculum]]<br /> <br /> =Friday May 17=<br /> [[OSE STEM Camp Marketing Strategy]]<br /> =Friday May 10 - Thursday May 16= <br /> Preparation for trip to Factor e Farm - gathered supplies - PCB boards, glossy paper, wire, magnets, electronic components, hardware, etc. Arrival at Factor e Farm. Work on D3D v. 19.04: [Photos - OSE D3D v19.04 Build at FeF https://www.facebook.com/photo.php?fbid=10161819908970597&amp;set=pcb.1063740287151880&amp;type=3&amp;theater&amp;ifg=1]<br /> <br /> =Friday April 12 - Thursday May 9=<br /> [https://drive.google.com/open?id=1-DpgMCARsA5iz4JLZtUeP3SD4a3UrXhj OSE Motor Completed] - ready for testing - Open Source Chinese Prusa i3 Printer Extruder - Configured and began printing with OSE D3D - printing very well at the moment - Booked a flight to Kansas City - heading to Factor e Farm soon!<br /> <br /> =Monday March 4 - Thursday April 11=<br /> FRC Robotics - Ryerson University, Western University. OSE Motor - students have made some progress: [https://drive.google.com/open?id=1n99XWM8KMwvnV-tCmcWjImsBG27ReRSc OSE Brushless Motor] Additional work on the [[Simple 3D Printer Extruder]]<br /> <br /> =Sunday March 3=<br /> Completed the first model of the most difficult part to CAD in the extruder - the X-Axis bracket. Will now print CAD files and measure their accuracy before making changes to the CAD parameters. Hopefully this process will result in more accurate parts.<br /> <br /> =Friday March 1 - Saturday March 2 =<br /> Further work on open sourcing Chinese Prusa i3 3D printer extruder.<br /> <br /> =Monday February 18 - Thursday February 28=<br /> Began the process of open-sourcing our 3D printer extruder: [[Simple 3D Printer Extruder]] (see photos and CAD files in the 3D Printer Folder) <br /> Started a new unit in Computer Engineering Technology class. Two groups of students are working on OSE materials: <br /> #The OSE Collaborative Contest<br /> #The OSE Filament Extruder<br /> <br /> =Saturday February 9-Sunday February 17=<br /> Hosted a group of six STEM students from School of the Nations in Georgetown, Guyana. STEM Camp at London International Academy. Introduced the concept of the OSE collaborative contest. Introductory FreeCAD activities. Introduced Python computer programming. Printed out various parts for an open source brushless motor. [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX Link to CAD Files] (see School of the Nations sub-folder)[[file:Rotor.jpg|200px]] [http://guyanachronicle.com/2019/02/17/nations-benefits-from-robotics-training-in-canada Article in Guyana Chronicle]<br /> <br /> =Wednesday February 6= <br /> [[OSE Coopetition]]. Discussed wiki + part library + documentation of OSE Coopetition.<br /> <br /> =Monday February 4=<br /> Uploaded version 0.1 of the OSE Collaborative Contest Rules to [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest]<br /> =Wednesday January 30 - Sunday February 3=<br /> FRC Build season. [https://drive.google.com/drive/folders/1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH?usp=sharing Team 6162 Cap Alpaca FreeCAD files]<br /> <br /> =Tuesday January 29=<br /> Collected FreeCAD files in a Google drive folder: [https://drive.google.com/open?id=1ikdLKij79Bbki5w1CprZXFbEXWGgmMFX OSE Collaborative Contest] <br /> Summary of Nanjing group's schedule: [https://docs.google.com/document/d/1R-Dtu3kdZ0u8Qo5w3_vDuNEg5myr8mUmLjSpPOf-HoI/edit?usp=sharing | 2019 Winter Camp]<br /> Here is some sample work from the FreeCAD workshop:<br /> *[[File:ReyJessica.png|200px]]<br /> *[[File:ZJHLSR.png|200px]]<br /> <br /> =Sunday January 27 - Monday January 28=<br /> Discussed record keeping, file sharing and other skills for collaborative literacy. Created a sample page stub: [[Brushless Motor Design]]. Asked students to reflect on sessions learning FreeCAD. Found that it is not necessary to learn a whole lot about FreeCAD in order to get students learning it. Demonstrated two sample FreeCAD 0.17 design processes:<br /> #Design a part like a motor adapter: body - sketch a circle - pad - sketch on a surface - pocket<br /> #Design a sketch with constraints - some straight lines and some arcs closed in a loop with particular dimensions and angles.<br /> After that, students were directed to Youtube videos that covered specific additional skills: <br /> *Threading - inner and outer<br /> *Polar patterns<br /> Through this process, I learned how to do these skills from some students and was able to show other students the same, especially with polar patterns.<br /> <br /> =Sunday January, 20 - Saturday January 26, 2019=<br /> Prepared for and welcomed 19 students from Jinling High School in China. Introduced the concept of the OSE Collaborative Contest. Marcin spoke with the group over Jitsi on Thursday and on Saturday and proposed that the students participate in the OSE Collaborative Contest. It was well received despite the students' fatigue from travel and skiing. Introduced FreeCAD and had students download and install it. Some computers do not immediately work with FreeCAD; hope that the problem may be solved. We plan to further discuss the students' participation in the contest tomorrow and 3D print some of their early FreeCAD work on Monday. Created a link to LIA students' FreeCAD work. Currently the folder is being used for FRC preparation. After the FRC robot is built, we are planning to transition to OSE-related work in this folder: [https://drive.google.com/open?id=1sXbaB1QUU57K9Q52ALTogS3kpI_XoCgH LIA OSE Club CAD Files]<br /> <br /> =Thursday January 10 - Saturday Jan 19, 2019=<br /> Heaviest schedule of the year - January and February; progress slower during this time. Working on STEM Curriculum for FeF STEM Camps - [[Summer School 2019]].<br /> <br /> =Wed Jan 9, 2019=<br /> *Use a presentation - template - make a copy - pass this to Heydar - document the simple 3D printing extruder for a low cost 3d printer - [https://docs.google.com/presentation/d/1_kUzO4eRCqrHVpqxSSTs17oLhtikTTyYe_1NxrTKlTI/edit#slide=id.g45ed589c64_0_0]<br /> *Homework: Complete STEM Curriculum<br /> <br /> =January 2, 2019=<br /> Ordered parts for a brushless motor to be constructed as part of the contest and part of the Computer Engineering Technology class at London International Academy.<br /> In order to make the collaborative contest work, we will need to create a kit of parts to be easily shipped to participating schools.<br /> <br /> =December 24 2018-January 1, 2019=<br /> Took a break. Reflected on plans for OSE London / OSE Club at London International Academy / OSE Collaborative Contest<br /> <br /> <br /> =December 23, 2018=<br /> Defined particulars of [[OSE STEM Camps]].<br /> <br /> =December 22,2018=<br /> [[William Conversation | Conversation with Marcin]]. Research on OSE Club Activities. Planning for winter semester courses' links to OSE - Computer Engineering Technology and Computer Science. Plans to do the following in Computer Engineering Technology: build a brushless motor and ESC from scratch. Computer Science: Programming projects related to OSE - simulation program? Western University Introduction to STEM Class - offer the OSE Competition as a choice for a final project - help administer / judge / communicate / etc.<br /> <br /> =December 12-21, 2018=<br /> Exams and marking - excellent ways to hinder educational progress. Discussed Canadian bill of materials with Russ Purvis. Discussed the upcoming OSE workshop in Prince George, BC currently in the planning phase. Several phone conversations with Charlie. Worked on some particulars for the upcoming OSE competition in January. Contacted a teacher in Iran to invite her to join the competition with her students. Sent a letter of reference to Russ with respect to hosting an OSE workshop.<br /> <br /> =December 8-11, 2018=<br /> Spoke with Charlie about development of OSE workshops. Spoke with Marcin and Catarina about the same. Updated Marcin about development of OSE club at London International Academy. We now have plans to include at least four schools in our first design challenge - School of the Nations in Guyana, Fujing Foreign Language School in Shenzhen and Jinling School in Nanjing. Was approached by a friend to contact Makerspace managers in St. Thomas and Toronto. Arranged a meeting with the makerspace managers at Western University. OSE Marlin v18.10 works for printing with new printer. Successfully printed base layer of a file. It seems that the extruder may have jammed. Will check again as soon as possible. LIA students continue to develop their FreeCAD skills and are able to design parts in parallel according to a spacial plan and assemble them into a larger model. Installed OSE Linux on laptop now with a new old-school 1TcB hard drive. OSE Linux did not recognise the card reader; everything else seems to work very well. &lt;strong&gt;Note: Stepper motors on y axis of D3D became alarmingly hot after about 15 minutes of printing.&lt;/strong&gt; Perhaps this is a configuration issue; may need to resolve this before allowing the printer to do a full print.<br /> <br /> =December 7, 2018= <br /> Using OSE Ubuntu on laptop with fried SSD. Internet has connection through ping but does not display pages in Chromium. D3D Marlin recent version from OSE website installed in printer. Autohome produces a collision of the z axis with the extruder as by default the z probe is off the plate. Tried to move the y axis using various commands such as G0 Y40 and G1 Y40 all of which cause the Y axis to move until it hits the maximum physically possible position. Spoke with Johann Wong about the possibility of combining an OSE Makerspace skills (Arduino, CAD, etc.) + 3D printer workshop with Human Innovation PIE's soft skills innovation workshop through the London International Academy Foundation. Was using wrong Marlin file for D3D printer - will try correct one asap. Suggestions for D3D: use zip ties and clothespin springs for tensioning belts. This has worked exceptionally well and reliably for our Chinese Prusa derivative; the belts have needed nearly no attention in three years.<br /> <br /> =December 6, 2018=<br /> Was about to test print on OSE D3D when SSD crashed. Did Ubuntu fry it? Researching this.<br /> <br /> =December 5, 2018=<br /> Introduced the OSE design challenge to OSE Club students at London International Academy.<br /> <br /> =December 4, 2018= <br /> Held an informal Introduction to Arduino Workshop at London International Academy to help two grade 11 students with a project. Spoke with Marcin about plans for the OSE design challenge, OSE club and possibility of a summer camp at FeF in May or June of 2019.<br /> <br /> =December 2, 2018=<br /> Created a document outlining a framework for OSL - Open Source London and shared it on Google Docs; visited Charlie to discuss the document.<br /> <br /> =November 29, 2018=<br /> Introduced OSE 3D Printer and Prusa i3 3D printer to parents and students at a local French Immersion school - PAFI. Designed and printed various models using Blender and Repetier.<br /> <br /> =November 28, 2018=<br /> *Updated OSECartCoin with letters. <br /> **[[File:PAFI.stl]]<br /> **[[File:PAFI.fcstd]]<br /> *Call with Marcin regarding '''[[LIA OSE Club]]'''<br /> *Build from last week - [https://www.facebook.com/groups/398759490316633/permalink/963594880499755/]<br /> <br /> =November 27, 2018=<br /> Wrote the suggested intro to Marcin's next TED talk: [[Marcin's Next TED Talk]]<br /> =November 26, 2018=<br /> Uploaded FeF Brick Press Fabrication video from July 29, 2011 - [https://youtu.be/LwW8sOUO00s]<br /> &lt;p&gt;Uploaded video of the &quot;Cluckaphone&quot; - July 29, 2011 - [https://www.youtube.com/watch?v=PNOhZX7ftLk&amp;feature=youtu.be]<br /> Call with Marcin, Catarina and Charlie - OSE Planning<br /> <br /> =November 25, 2018=<br /> Consultation about the establishment of an OSE Club at London International Academy and future directions for the development of OSE Clubs and Makerspaces.<br /> <br /> =November 24, 2018=<br /> We made an OSE Cart Coin with FreeCAD <br /> Here are the files for OSE Cart Coin v0.1:<br /> [[File:OSECartCoin.fcstd]]<br /> [[File:OSECartCoin.stl]]<br /> Attended Marcin's presentation entitled &quot;Education for the Open Source Economy&quot;<br /> <br /> =November 23, 2018=<br /> Built a an OSE 3D printer at London International Academy<br /> <br /> =November 23-25=<br /> Attended first OSE Professional Development workshop at London International Academy with Charles Freer, Pascal Gingras, Marcin and Catarina.<br /> <br /> =November 18-22= <br /> Prepared for the visit of Marcin and Catarina to London.<br /> <br /> =November 17, 2018=<br /> Conversation about OSE development with Charlie. In particular, discussion about education and its relationship to developing the capacity to lead a meaningful and productive life. Reference to overlap of Baha'i means and principles with those of the OSE - elimination of the extremes of wealth and poverty, building capabilities in a population, individual agency and initiative within a systematically evolving framework, etc.<br /> <br /> =November 16, 2018=<br /> *Received US $5000 Shuttleworth Foundation Flash Grant<br /> *Conference call with Marcin and Charles Freer regarding Marcin and Catarina's upcoming visit to London, Ontario<br /> <br /> =November 15, 2018=<br /> Engineering Club students designed and printed a part to add to the Lyman Filament Extruder repository - a bracket for a rocker switch<br /> <br /> [[File:SwitchBracket2.png]]<br /> [[File:Switchbase2.stl]]<br /> [[File:SwitchBracket.FCStd]]<br /> <br /> <br /> =May, 2012=<br /> Started project to build metric version of OSE CEB Press in Nanjing, China<br /> <br /> =April, 2012=<br /> Began 3D Printing project in physics class at London International Academy<br /> <br /> =July, 2011-October, 2018=<br /> Many things happened including severe neglect of the OSE wiki<br /> Some highlights:<br /> <br /> <br /> *Regular incorporation of OSE concepts into classes and presentations 2011-present<br /> *May, 2013 - started collaboration with Human InnovationPIE, a London non-profit organization focused on providing soft skills education for innovation.<br /> *April, 2014 - Recognized in local paper for 3D Printer build with students<br /> *July, 2015 - Asked to start STEM program at London International Academy further to success and popularity of 3D printer project<br /> *September, 2015 - Began building Farmbot with students<br /> *January, 2017 - Began teaching an Introduction to STEM course at Western University with significant OSE-based content.<br /> <br /> =July 16, 2011=<br /> Arrived at Factor e Farm with Haydar Neal<br /> <br /> =March, 2011=<br /> Saw TED Talk and wrote away to Marcin immediately</div>

Wneal