Poli Log

6/8-6/10/18

Reviewing fluidized bed reactor specifications and making model in freecad.

Developer test self-assessment

Overall the developer cube test likely took 20 hours to complete, spread over a few weeks. Downloading the iso was delayed by browser issues, but after download setup was easy enough, taking maybe 2 hours and buying a flash drive. Making the cube in CAD was the most time consuming part of the exercise taking time to refresh CAD navigation, toolbars, and selecting things. The exercise took several (10-20) tries mainly due to conflicting constraints, this is when I started to review previous tests to see the strategies used. One trick I have been unable to replicate is being able to select or copy an object and move it with the mouse without changing the orientation. The strategy I used was to duplicate tubes made in each orientation and place the tubes using constrains on each axis, building a cube. It took several hours of frustration with plane constraints to find out about the fixed position property, with the ability to fix a single tube and constrain the others to it building the cube was fairly straight-forward. Marcin told me how to find the bolt in the fastener workbench and it took watching a few old tests to find out how to attach the bolt and screw. Building the cube took about 15 hours, but I can now make the cube in less than 20 minutes. After unsuccessfully trying to screen record in windows I booted OSE linux. What a difference! Very smooth operation, with programs that have most professional options. Recording with vokoscreen produced manageable videos, these were easy to lay out in kdenlive. Googling found options to speed up the video but it couldn't be reduced to 30 seconds. Making the videos took maybe 3 hours in total.

I would assess myself a score of 80% mainly due to a lack of following directions. I did not switch to linux until I had already reviewed freecad in windows, working in linux longer may have produced a been video (-10). As a result the video is over the allotted time (-10), perhaps there is another option for speeding up the video that I overlooked.

Overall score: 80

6/5/18

Test 2

Poli's second cube

Test 1

Poli's cube

Booted up OSE linux on acer aspire e5-525, had to change bios from uefi to legacy. Very nice platform! Used vokoscreen to record building the cube. Had to modify toolbars to include duplicate selection and pocket. Collected a few clips to cover all of the steps and laid out in kdenlive, used property->motion->speed 2000% to speed up movie, max setting but video is still 1 min. Downloaded OS music, dropped in audio track, clipped at 1 min. Rendered as MP4 and MPEG for upload to youtube, had issues with MP4 on youtube at first but worked eventually.

6/4/18

Trying to get a recording of the developer test cube, having issues with VLC and CamStudio. Will try to work in OSE linux next.

6/3/18

Working on finishing developer test cube. Attaching bolt (ISO 4014 M27 220 length) and hex nut (ISO 4032). Working to produce recording of desktop by VLC, VCL output is by default to very large avi files https://superuser.com/questions/613368/how-do-i-set-the-format-vlc-media-player-uses-when-recording https://forum.videolan.org/viewtopic.php?t=95081 Still working on creating pocket from initials.

60/1/18

Reorganizing OSE approach to biotechnology pages

5/30/18

Made the cube by constraints using assembly2, looking for bolt part to finish design.

5/26-5/28

Downloaded ose linux iso, was having trouble with google download link through brave browser but worked with chrome. Formatted and mounted image to usb. Have been practicing freecad, making the cube for the developer test. Downloaded VLC for screen capture.

4/17-14/18

Have been experimenting with 3D printed parts for D3D using a Rostock printer, ABS plastic, and Repetier to generate g-code. ABS is warping away from the bed, and optimization has included raising the bed temperature, decreasing the printing speed, and printing on a bed lined with painters tape. In order to optimize prints had to generate axis pieces stl files and mirror part.

3/22/18

Started receiving ordered materials. Preparing to print necessary parts in ABS on Rostock printer. Investigating 16' frames considering steel, PVC or acrylic, leaning towards steel.

3/19/18

Have been researching D3D printer and how to solvent cast 3D print set-up documentation site for a replication build. Dispersion of solvent disssolved material require fluid pumping to drive extrusion.

3/15/18

Installed freecad. Focusing research on cellulose based 3D printable materials because this seems to be the most boot-strappable material to manufacture in the OSE context. Printable cellulose requires solvents for dispersion rather than using thermal melting.

3/13/2018

After a long hiatus the OSE bioplastic project is back under development. Background research is near completion and current work is to design and build prototypes of a chemical reactor capable of producing PLA (and PE).

Where to pick up again?: 1. Determine the necessary capabilities of a reactor for producing bioplastics. 2. Make reactor core schematics and determine manufacturing techniques. 3. Build a budget for reactor prototype and substrates. 4. Crowdfund necessary funds. 5. Build prototypes at FeF in Summer 2019.