Open Source Ecology - User contributions [en]

CEB Build in Chile

2016-05-15T23:45:59Z

Nottern link:

=About the replication=
Back in 2013, we met because we all wanted to replicate open source hardware, but we had no money. So Felipe and Nicolás found a non profit organization that was interested in the machine. The project was made for [http://www.fundacionorigen.cl/ Fundación Origen] in Pirque, Chile.

We dealt with the initial problems of converting all measures and beams to the available metric ones in Chile and we also verified the strength calculations for the most delicate beams. Then we started working in the hydraulic system design with the help of a local company that manufactured them for us.

Then the hydraulic cylinders were stolen, so we stopped for a bit since they were very expensive. Finally, Felipe took the leading role and finished the project in 2015.

=Building process=
[[File:monicaceb.jpg]]
[[File:morechileceb.jpg|800px]]

[[File:finalchileceb.jpg|800px]]

Download pictures: [[File:monica_ceb_chile.zip]]

=Documentation=
CAD files (previous to building) [[File:chilecebCAD.zip]]

=Team=
Felipe Rojas

[[Monica Log|Mónica Zamora]]

Nicolás Balmaceda

Víctor Valenzuela

And we thank all our friends from OSE and RedEC for their help when needed!

Monica CEB Replication

2016-05-15T23:43:25Z

Nottern link: Redirected page to CEB Build in Chile

#REDIRECT [[CEB_Build_in_Chile]]

File:ChilecebCAD.zip

2016-05-15T23:42:10Z

Nottern link: Drawn in Autodesk Inventor. Contains stp file that can be opened in any CAD program

Drawn in Autodesk Inventor. Contains stp file that can be opened in any CAD program

CEB Build in Chile

2016-05-15T23:41:17Z

Nottern link:

=About the replication=
Back in 2014, we met because we all wanted to replicate open source hardware, but we had no money. So Felipe and Nicolás found a non profit organization that was interested in the machine. The project was made for [http://www.fundacionorigen.cl/ Fundación Origen] in Pirque, Chile.

We dealt with the initial problems of converting all measures and beams to the available metric ones in Chile and we also verified the strength calculations for the most delicate beams. Then we started working in the hydraulic system design with the help of a local company that manufactured them for us.

Then the hydraulic cylinders were stolen, so we stopped for a bit since they were very expensive. Finally, Felipe took the leading role and finished the project in 2015.

=Building process=
[[File:monicaceb.jpg]]
[[File:morechileceb.jpg|800px]]

[[File:finalchileceb.jpg|800px]]

Download pictures: [[File:monica_ceb_chile.zip]]

=Documentation=
CAD files (previous to building) [[File:chilecebCAD.zip]]

=Team=
Felipe Rojas

[[Monica Log|Mónica Zamora]]

Nicolás Balmaceda

Víctor Valenzuela

And we thank all our friends from OSE and RedEC for their help when needed!

File:Cebchilepics.zip

2016-05-15T23:38:20Z

Nottern link: Nottern link uploaded a new version of File:Cebchilepics.zip

File:Monica ceb chile.zip

2016-05-15T23:32:12Z

Nottern link: Nottern link moved page File:Monica ceb chile.zip to File:Cebchilepics.zip: More general name

#REDIRECT [[File:Cebchilepics.zip]]

File:Cebchilepics.zip

2016-05-15T23:32:12Z

Nottern link: Nottern link moved page File:Monica ceb chile.zip to File:Cebchilepics.zip: More general name

CEB Build in Chile

2016-05-15T23:31:12Z

Nottern link:

=About the replication=
Back in 2014, we met because we all wanted to replicate open source hardware, but we had no money. So Felipe and Nicolás found a non profit organization that was interested in the machine. The project was made for [http://www.fundacionorigen.cl/ Fundación Origen] in Pirque, Chile.

We dealt with the initial problems of converting all measures and beams to the available metric ones in Chile and we also verified the strength calculations for the most delicate beams. Then we started working in the hydraulic system design with the help of a local company that manufactured them for us.

Then the hydraulic cylinders were stolen, so we stopped for a bit since they were very expensive. Finally, Felipe took the leading role and finished the project in 2015.

=Building process=
[[File:monicaceb.jpg]]
[[File:morechileceb.jpg]]
[[File:finalchileceb.jpg]]

Download pictures: [[File:monica_ceb_chile.zip]]

=Documentation=
[ Google drive folder]

=Team=
Felipe Rojas

[[Monica Log|Mónica Zamora]]

Nicolás Balmaceda

Víctor Valenzuela

And we thank all our friends from OSE and RedEC for their help when needed!

Monica CEB Replication

2016-05-15T23:29:29Z

Nottern link: moved to CEB_Build_in_Chile

File:Finalchileceb.jpg

2016-05-15T23:28:44Z

Nottern link:

File:Morechileceb.jpg

2016-05-15T23:28:15Z

Nottern link:

CEB Build in Chile

2016-05-15T23:23:13Z

Nottern link: Created page with "=About the replication= Back in 2014, we met because we all wanted to replicate open source hardware, but we had no money. So Felipe and Nicolás found a non profit organizati..."

=About the replication=
Back in 2014, we met because we all wanted to replicate open source hardware, but we had no money. So Felipe and Nicolás found a non profit organization that was interested in the machine. The project was made for [http://www.fundacionorigen.cl/ Fundación Origen] in Pirque, Chile.

We dealt with the initial problems of converting all measures and beams to the available metric ones in Chile and we also verified the strength calculations for the most delicate beams. Then we started working in the hydraulic system design with the help of a local company that manufactured them for us.

Then the hydraulic cylinders were stolen, so we stopped for a bit since they were very expensive. Finally, Felipe took the leading role and finished the project in 2015.

=Building process=
[[File:monicaceb.jpg]]
[[File:morechileceb.jpg]]

Download pictures: [[File:monica_ceb_chile.zip]]

=Documentation=
Google drive folder

=Team=
Felipe Rojas

[[Monica Log|Mónica Zamora]]

Nicolás Balmaceda

Víctor Valenzuela

And we thank all our friends from OSE and RedEC for their help when needed!

Replication

2016-05-15T23:18:37Z

Nottern link: Changing the name of the CEB chile page

{{OrigLang}}
{{Tip|Replication Discussions|
Feel free to discuss your ideas and experiences regarding replication on the [http://forum.opensourceecology.org/categories/gvcs-replication GVCS Replication category] of our forum.
}}
{{TOC left}}
= Overview =
<p style="text-align:justify;">Using the [[Civilization_Starter_Kit_DVD_v0.01|Civilization Starter Kit]], people are beginning to independently build their own [[Global_Village_Construction_Set|Global Village Construction Set]] machinery throughout the world. Many of them have come to [[Factor_e_Farm|Factor e Farm]] for [[Dedicated_Project_Visits|Dedicated Project Visits]], and others have taught themselves based on our training materials. We conduct [[Evaluations|program evaluations]].

=Replicator's Survey=

If you have built any of the GVCS machines, we'd like to hear about your experience for learning purposes. Plaese fill out this form:

<html><iframe src="https://docs.google.com/forms/d/1WUw6gv_fB2dXnK_XnwWRmvsJCtBRE6KNo5MEcl_5CXg/viewform?embedded=true" width="760" height="500" frameborder="0" marginheight="0" marginwidth="0">Loading...</iframe></html>

[https://docs.google.com/a/opensourceecology.org/forms/d/1WUw6gv_fB2dXnK_XnwWRmvsJCtBRE6KNo5MEcl_5CXg/edit edit survey form]

[https://docs.google.com/a/opensourceecology.org/spreadsheets/d/1aZnDAv-JqXWFmXyGjkhXZFyJeP-6ZwH3XVRo7nh5IMw/edit#gid=221585806 See survey responses].

= Replication Activity =
[https://docs.google.com/spreadsheet/ccc?key=0Aj7WbjRT9mlmdGZKLWZQSnFpMzhvRGlSMHdDd2ZGckE#gid=0 ''Click to edit map'']

<html>

<script type="text/javascript" src="//ajax.googleapis.com/ajax/static/modules/gviz/1.0/chart.js"> {"dataSourceUrl":"//docs.google.com/spreadsheet/tq?key=0Aj7WbjRT9mlmdGZKLWZQSnFpMzhvRGlSMHdDd2ZGckE&transpose=0&headers=0&range=A1%3AB8&gid=0&pub=1","options":{"region":"US","vAxes":[{"viewWindowMode":"pretty","viewWindow":{}},{"viewWindowMode":"pretty","viewWindow":{}}],"booleanRole":"certainty","animation":{"duration":500},"colors":["#00ffff","#ffd966","#ffff00"],"vAxis":{"format":""},"displayMode":"markers","resolution":"provinces","useFirstColumnAsDomain":true,"hAxis":{"maxAlternations":1,"format":""},"width":600,"height":371},"state":{},"view":["{\"columns\":[0,1]}","{\"columns\":[0,1]}","{\"columns\":[0,1]}"],"chartType":"GeoChart","chartName":"Open Source Ecology - Replicators Network - United States"} </script>

</html>

*'''Stage 1 - Planning'''
*'''Stage 2 - Fabrication'''
*'''Stage 3 - Complete'''
<br />
<br style="clear: both" />
== Daniel & Hayden: Pasadena, California, USA ==

[[Image:DH_Tractors_-_02.jpg|left|400px]]
<h3>'''[http://dandhtractors.org/ D&H Tractors]'''</h3>
<p style="text-align:justify;">'''We are D & H, Daniel and Hayden, 12th grade students at the Polytechnic School in Pasadena, CA.'''</p>
<p style="text-align:justify;">We, along with our engineering class and several students from nearby Blair High School, intend to build a Lifetrac from the plans of Open Source Ecology. We will donate the tractor to [http://www.southcentralfarmers.com/ The South Central Farmers Cooperative], for use on their 120 acre farm in Shafter, CA.</p>

<p style="text-align:justify;">Our rationale for taking on this project is three pronged. By being among the first- and the first high school aged students- to replicate the Lifetrac, we are doing a service to the Open Ecology Project, and, consequently, may be helping change the future of agriculture everywhere. Our project will, likewise, benefit the South Central Farmers, who are eager to experiment with open source agricultural technology. Finally, bringing a project like this to the Polytechnic School (and, in a smaller degree to Blair High School) will provide aspiring engineers with a chance to use their skills in the field before leaving for college.</p>
* Slides: http://imgur.com/a/eZq7t/embed
* High School Presentation: http://vimeo.com/36147461
{{Clear}}

== Manuel Aguilar: Guatemala ==

[[Image:Manuel Aguilar - 02.jpg|left|400px]]

<h3>'''[http://quetsol.com/ Quetsol]'''</h3>

<p style="text-align:justify;">'''Manuel was co-founder of Quetsol. Quetsol offers appropriate technology solutions that sustainably provide for the energy demands of a wide variety of users at a lower social and economic cost.'''</p>

<p style="text-align:justify;">Our project, currently in late planning stages, is building a sustainable village for about 30 families recently displaced by extreme weather in Guatemala. The village model will approach sustainability in an integral way, from housing design and construction to agriculture and resource management. Residences, for example, will incorporate appropriate materials (CEB mostly), passive solar design, and come standard with rain-catchment systems with prefiltration, mini greenhouses, efficient wood/methane stoves, water filtration, PV for light/comm, compost toilets, water recycling. Agri and aquaculture will be efficiently designed as well as per local conditions (location TBD soon). The aim will be to demonstrate a working prototype of a self-sustainable community built for the BOP, which can, when designed and built appropriately, economically replace the current minimum denominator settlements which cause so much human and environmental hazard. Ultimately we intend to build something replicable and scalable, which is where OSE comes in.</p>

<p style="text-align:justify;">OSE will integrate into our work in a variety of ways. Initially, we aim to train a skilled replicator so that some of the first GVCS machines can be built on site and facilitate village construction and development. We also plan to build and equip a workshop in which to build the initial machines and which will also eventually serve as a high-value business opportunity to some trained villager entrepreneurs. Beyond the machines built for village use, which will generate value at reduced cost - income will be generated initially from fabricating machines for local distribution. Eventually, they workshop will also expand to include training of locals, so that other such businesses may sprout in other communities. This is in keeping with the OSE ethos, and at the core of many of our intentions with our project. The village aims to demonstrate that post-scarcity abundance can be achieved, even with the lowest means found amongst the BoP, with appropriate use of technology. OSE provides a fantastic set of tools and methodologies that potentiate development precisely through intelligent open-source design and tech.</p>

<p style="text-align:justify;">In terms of time frame, in the next month, we will have purchased land, identified a replicator, finished first project proposal and begin land work. April I will be travelling abroad for 3 weeks, so construction of the first living Unit will take place mid-May. During summer, June-Aug, we will build the workshop and at some point fabricate the CEB press after having the replicator receive proper training. After this is accomplised, we will build the residential units and have the families begin to move in, as they will also be helping build their own houses.</p>
<br style="clear: both" />

See [[Guatemala Log]] for more details.

== Andrew Spina: Baltimore, Maryland, USA ==
[[Image:Andrew-Spina---02.jpg|left|400px]]
<h3>'''[http://aispina.blogspot.com/ Machining Independence]'''</h3>
<p style="text-align:justify;">'''I'm building my own tractor''' because I want to understand it and be able to maintain it. It's also a project that will teach me many valuable skills. I've already learned a ton about machining and CAD.</p>

<p style="text-align:justify;">Finally, I'm interested in joining the material economy at some time in my life. So far I've earned my living by working in the knowledge economy. I think really hard and get paid to do it. I'm employed as a programmer. It's a job I love, but constrains my life quite a lot-- I work 40hr a week and have to commute to my place of work. One day, I'd like to have a bit more control-- perhaps program as a hobby.</p>

<p style="text-align:justify;">What do I mean by 'material economy' ([http://www.newgreeneconomy.com/sustainable-living/item/12-transforming-the-materials-economy a green wing article])? I mean that I take ingredients and make a product. The product is a tangible thing that solves a tangible problem like hunger, need for shelter, etc. This is important because the tangible problems are the ones that force the average person to take a 9 to 5. If I can provide fixes for these root human needs, I'll have high security (someone somewhere is hungry) and be encouraging smaller scale self sufficiency. The OSE folk argue (see Village Scale [http://opensourceecology.org/wiki/OSE_Spec here]) that a material economy of about 200 people is enough for comfortable modern living locally. That sounds like somewhere I'd want to live.</p>

<p style="text-align:justify;">So what will I produce in the material economy? I mean really, what will my tractor produce? I don't have a firm plan, but my current thoughts are to produce pelletized biomass. With a few tools (Tractor, Hay Cutter, Hammer Mill, Pelletizer) and some land, I may be able to produce a renewable, carbon neutral (or even negative!) local fuel. I'm not yet clear on the economics-- how much land make how many pellets? How much labor for each acre of land? How much do pellets cost? Where would I sell them? But, I'm going to have a tractor regardless so if the economics don't work, I'll find a different plan.</p>
<br style="clear: both" />
== James Slade: Austin, Texas, USA ==

[[Image:James_Slade_-_02.jpg|left|400px]]
<h3>'''[[Replication-CreationFlame|Creation Flame]]'''</h3>
<p style="text-align:justify;">"'''October, 2011 marks the first ever replication of a complete [[GVCS]] machine by an independent third party. This is a day of historical significance for the Global Village Construction Set. Congratulations to James Slade of Texas.'''"</p>
''- Marcin Jakubowski, Nov. 14, 2011''

<p style="text-align:justify;">James Slade is one of the co-founder's of [http://www.CreationFlame.org Creation Flame] in Cedar Creek, Texas. In partnership with Jason Smith, Creation Flame is the first to successfully replicate a CEB press and is now getting into the business of using and selling CEB blocks. In unison with Thad from Broken Sidewalk Farm, they are starting production of a LifeTrac, self replicating CNC Plasma table, and another Powercube. Also starting to build a few [[roller table|Roller Tables]] to help with the CEB's and steel work.</p>
<br>

See corresponding [http://blog.opensourceecology.org/2011/11/historic-moment/ Blog Post]. See [[Patrick Gibbs Interview of James Slade]] regarding this replication.

<br />
CEB brick pressing results from Creation Flame: [[CEB_Blocks|CEB Blocks]]
<br style="clear: both" />
<br style="clear: both" />

== Tom Griffing: Dallas, Texas, USA ==

[[Image:Tom_Griffing_-_02.jpg|left|400px]]
'''<h3>[[Replication/PondusLLC|Pondus, LLC]]</h3>'''
<p style="text-align:justify;">'''Tom Griffing operates Pondus LLC in Dallas, Texas.'''</p>

<p style="text-align:justify;">After spending nearly a month in Missouri in August, Tom has continued his efforts in documentation, design enhancements and in replicating his first Power Cube. He is now targeting a LifeTrac after making improvements on our Power Cube Prototype 4 design.</p>

'''Video:''' [http://www.youtube.com/watch?v=HhOphEJiCVk&feature=plcp&context=C359e526UDOEgsToPDskLmdLjD8raeWHMmtqV-8xWe Power Cube Prototype 5] - Tom's updated design of the Power Cube.

'''Photo:''' [[First_Power_Cube_Sold_by_Tom_Griffing|Enhanced Power Cube]] - the first Power Cube sold by Tom.
<br />

<br />

<br style="clear: both" />

== Luke Iseman: Austin, Texas, USA ==

[[Image:Luke-Iseman---02.jpg|left|400px]]
'''<h3>[http://www.re-char.com re:char]</h3>'''
'''<p style="text-align:justify;">Luke worked on [[CNC_Torch_Table#Suggested_steps_from_Luke_Iseman|making improvements]] to the CNC Torch Table and made a [[Luke_Iseman_Dedicated_Project_Visit_Application|dedicated project visit]] to Factor e Farm in December, 2011.</p>'''
<p style="text-align:justify;">Luke is chief technology officer for [http://www.re-char.com re:char]. He graduated, cum laude, from [http://www.wharton.upenn.edu/ The Wharton School] at the University of Pennsylvania, concentrating in Entrepreneurship and Operations. Luke is passionate about open source hardware, and his projects have been covered by [http://makezine.com/ Make Magazine], [http://www.re-char.com/who-we-are/rechar-team/boingboing.net/ Boingboing], [http://www.re-char.com/who-we-are/rechar-team/www.wired.com/ Wired], and [http://www.re-char.com/who-we-are/rechar-team/www.austinchronicle.com The Austin Chronicle]. Before joining the re:char team, Luke worked at a variety of software technology companies, built and managed a fleet of 25 pedicabs, invented an automated gardening computer, and wrote a book about traveling around the world. Luke is excited about using the power of the physical computing revolution to build a more sustainable world.</p>

<br style="clear: both" />

== Dorkmo: Tulsa, Oklahoma, USA ==

[[Image:Dorkmo---02.jpg|left|400px]]
'''<h3>[[User:Dorkmo|Dorkmo]]</h3>'''
'''<p style="text-align:justify;">Dorkmo is a user from Oklahoma with a background in tinkering, and he enjoys spreadsheets.</p>'''

<p style="text-align:justify;">He has independently replicated the [[CEB_Press/Manufacturing_Instructions/Detroit_Fab_Lab_Solenoid_Driver_v2|Detroit Board]] and the [[CEB_Press/Manufacturing_Instructions/Controller_Box|CEB Controller Box]].
<br />
<br />
<br />
<br />
<br />
<br />

<br style="clear: both;" />

== Dandelion Village: Bloomington, Indiana, USA ==

Zach Dwiel is a member of [http://dandelionvillage.org/ Dandelion Village], an ecovillage in the city limits of Bloomington, Indiana. They are in the process of building their first home using a CEB Press and Power Cube. Tom built our Power Cube. For the CEB Press, James Slade fabricated the steel parts, Zach designed and built the controller board and electronics, purchased the hydraulics and Dandelion Village assembled the machine.

Zach plans to build a two story house this year (2012) with the bricks from the CEB Press. More buildings are planned for next year, some of which may include bricks from the CEB Press, depending on how production goes on the first home. You can find updates on my blog: [http://dwiel.net/blog/category/house/ blog] and my house design here on this wiki: [[Dwiel House]]

== Tony Mensah, Mark Amo-Boateng, William Neal: Nanjing, China ==
[[Image:Mark_MetricCEB.jpg|left|400px]]
<h3>'''[[China Replication]]'''</h3>

In May, 2012, this group, originally from Ghana and Canada, set out in Nanjing to redesign the CEB press to metric specifications and build it with the help of some engineers at a factory in Ma'anshan, Anhui, China.

According to a report received on September 27th, there were some technical issues surrounding the later stages of assembly of the CEB press, particularly centred around the secondary cylinder and the soil shaker.

'''In June, 2013, the group was finally able to test the brick press - successfully [https://www.youtube.com/watch?v=QNWvE1HluZ8 (youtube link)]'''.


{{Clear}}

=Charles Liptaak=
<div class="toccolours mw-collapsible mw-collapsed" style="width:800px;">
<big>'''Charles Liptaak's Replication'''</big>
<div class="mw-collapsible-content">{{:Charles Liptaak Replication}}</div>
</div>

=Italy=
*CEB 1 - [http://www.facebook.com/media/set/?set=a.407927422606836.96582.260586650674248&type=1]
*CEB 2 - [https://www.facebook.com/OpenSourceEcologyItalia/photos/a.360056254060620.83900.260586650674248/367184470014465/?type=3&theater]

=Up to 2012=
Here is a clickable document (click edit below the drawing to access links) - all machines built up to 2012:

<html><img src="https://docs.google.com/drawings/d/13KT0VcHtk93h_yF_y6SdvTQgkN8_FOaaDmBhyDGUfhs/pub?w=960&h=720"></html>

[https://docs.google.com/drawings/d/13KT0VcHtk93h_yF_y6SdvTQgkN8_FOaaDmBhyDGUfhs/edit edit]

=2013=
OSE builds:
*Laser Cutter - [http://opensourceecology.dozuki.com/c/Laser_Cutter_-_Modules]
*[[LifeTrac 5]]
*[[LifeTrac 6]]
*[[Backhoe Prototype 3]]
*[[Ironworker Prototype 3]]
*[[MicroHouse 1]]
*[[MicroPowerCube 1]]
*Lulzbot TAZ build - with CNC Mill Spindle - [[Aidan Williamson]]

Counted 73 machines as of end of 2013.

=2014=
*CEB Press - for Scott Mader
*CEB Press - for Midwest Renewable Energy Fair
*CEB Press - for Factor e Farm
*PowerCube - Structural 1&2
*MicroPowerCube 2&3
*Lulzbot TAZ- 12 3D printers built in a workshop
*MicroCar - [[Velocar]] partial prototype
*[[MicroHouse 2]]
*[[MicroHouse 3]]
*[[MicroHouse 4]]
*Danny Epperson - PowerCube v6 in Austin, TX - [http://www.d33z.com/p/powercube.html]
*[[CEB Build in Chile]]
*[[CEB Build in India]]
*[[CEB Build in Texas 2014]]
*[[CEB Build - Rob Beddingfield]] - USA
*[[MarsTrac]]
*[[Nicaragua Replication]] - 2 brick presses and power cubes?

Note: counted 110 total machines as of end of 2014. 12 are 3D printers. 2 are the CEB presses and 4 power cubes in Nicaragua, thought the Nicaragua replication awaits confirmation. 27 not done by OSE headquarters, of these, 12 are brick presses. 8 countries of replication: USA, Chile, Nicaragua, Guatemala, China, India, Italy, Turkey.

=2015=
*[[Tractor Replication in Peru]]

= Archive =
*Old survey - Old 2012 Survey - [https://docs.google.com/a/opensourceecology.org/spreadsheets/d/1g7jaG5ZnF6m-n4NoVCTUXjqmzjNc9_KuoVI49ArYXZ4/edit#gid=0]

*For old ideas on Replication, check the [[Replication/Archive|Archive]].

[[Category: Education]]
[[Category: Replication]]

File:Warehouse-Rounded-tubes-and-plates-big-holes.skp

2013-07-15T03:01:31Z

Nottern link: includes the stock pivot plate, all plates with 1 1/8" diameter holes and both 1/4" and 1/2" thick tube profiles

includes the stock pivot plate, all plates with 1 1/8" diameter holes and both 1/4" and 1/2" thick tube profiles

Monica Log

2013-07-15T02:56:47Z

Nottern link:

[http://about.me/mzamora I am]

=July 2013=

==Sunday July 14, 2013==
I finished the task of updating this warehouse. The result includes the stock pivot plate, all plates with 1 1/8" diameter holes and both 1/4" and 1/2" thick tube profiles. This is the file [[File:Warehouse-Rounded-tubes-and-plates-big-holes.skp]]

[[File:Warehouse-0714.png|400px]]

[[Tibor_Log|Tibor]] gave me a '''great tip''' for the tangent arcs: lines should be made before arcs in order to make them. So instead of doing the inner arcs first, do the lines.

Made a tutorial for using arrays in the tube construction. In this case from a 4" tube, we get a 40" in less than a minute. Then, all that's left is cleaning details.

<div><html><iframe width="560" height="315" src="//www.youtube.com/embed/UFjAJFr-NRY" frameborder="0" allowfullscreen></iframe></div></html>

==Friday July 12, 2013==

Made a tutorial about making the round edge steel tubes.

<div><html><iframe width="560" height="315" src="//www.youtube.com/embed/-IUTLvZBeqQ" frameborder="0" allowfullscreen></iframe></div></html>

==Thursday July 11, 2013==
Keep working on the round edge tubes. Here is the actual file with the 1/2" thick tubes. The 1/4" thick tubes are not ready yet.

[[File:Warehouse-round-0711.skp]]

==Wednesday July 10, 2013==

Changing steel tubes (Adding fillet and bigger holes) in two thicknesses

[[File:STbs0710.png|400px]]

More file formats for the [[Stock Pivot Plate]]

[[File:SPP-0710.png|150px]]

[[File:Pivplate1575-3.skp]] The real plate

[[File:Pivplatescaled-3.stl]] The scaled plate

[[File:Pivplatescaled-3f.stl]] The STL scaled plate

[[File:Pivplatescaled-3-laser.dxf]] The dxf scaled plate

==Tuesday July 9, 2013==

Working on the changes for the [[Stock Pivot Plate]]

[[File:SPP-0709.png|400px]]

=June 2013=
<span style="color:red">Great work! See [[Justin Log]] for tag team continuation. We have discussed using 1/4"x4"x4" square tube for the spokes so that we can make the wheel scalable by extending the length of the tubing. Justin is working on finishing the 3" hub to be a standalone module.

Wowwwww How big do you want to scale it?

==Friday June 21, 2013==

Split collar. I'm not sure if this was what you were asking for.
It's not easy to erase both disks to put the hub.

I've been with a cold. Still not 100% recovered.

[[File:Wheel0621.skp]]

[[File:Wheel0621.png|400px]]

'''Monica: Should the collar be split on both sides as in [[3_Inch_Wheel_Hub]]?'''

==Monday June 17, 2013==

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

==Sunday June 16, 2013==

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

==Saturday June 15, 2013==

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

==Friday June 14, 2013==
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

File:Warehouse-0714.png

2013-07-15T02:56:22Z

Nottern link:

Monica Log

2013-07-15T01:12:27Z

Nottern link: /* Friday July 12, 2013 */

[http://about.me/mzamora I am]

=July 2013=

==Sunday July 14, 2013==

[[Tibor_Log|Tibor]] gave me a '''great tip''' for the tangent arcs: lines should be made before arcs in order to make them. So instead of doing the inner arcs first, do the lines.

Made a tutorial for using arrays in the tube construction. In this case from a 4" tube, we get a 40" in less than a minute. Then, all that's left is cleaning details.

<div><html><iframe width="560" height="315" src="//www.youtube.com/embed/UFjAJFr-NRY" frameborder="0" allowfullscreen></iframe></div></html>

==Friday July 12, 2013==

Made a tutorial about making the round edge steel tubes.

<div><html><iframe width="560" height="315" src="//www.youtube.com/embed/-IUTLvZBeqQ" frameborder="0" allowfullscreen></iframe></div></html>

==Thursday July 11, 2013==
Keep working on the round edge tubes. Here is the actual file with the 1/2" thick tubes. The 1/4" thick tubes are not ready yet.

[[File:Warehouse-round-0711.skp]]

==Wednesday July 10, 2013==

Changing steel tubes (Adding fillet and bigger holes) in two thicknesses

[[File:STbs0710.png|400px]]

More file formats for the [[Stock Pivot Plate]]

[[File:SPP-0710.png|150px]]

[[File:Pivplate1575-3.skp]] The real plate

[[File:Pivplatescaled-3.stl]] The scaled plate

[[File:Pivplatescaled-3f.stl]] The STL scaled plate

[[File:Pivplatescaled-3-laser.dxf]] The dxf scaled plate

==Tuesday July 9, 2013==

Working on the changes for the [[Stock Pivot Plate]]

[[File:SPP-0709.png|400px]]

=June 2013=
<span style="color:red">Great work! See [[Justin Log]] for tag team continuation. We have discussed using 1/4"x4"x4" square tube for the spokes so that we can make the wheel scalable by extending the length of the tubing. Justin is working on finishing the 3" hub to be a standalone module.

Wowwwww How big do you want to scale it?

==Friday June 21, 2013==

Split collar. I'm not sure if this was what you were asking for.
It's not easy to erase both disks to put the hub.

I've been with a cold. Still not 100% recovered.

[[File:Wheel0621.skp]]

[[File:Wheel0621.png|400px]]

'''Monica: Should the collar be split on both sides as in [[3_Inch_Wheel_Hub]]?'''

==Monday June 17, 2013==

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

==Sunday June 16, 2013==

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

==Saturday June 15, 2013==

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

==Friday June 14, 2013==
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

Monica Log

2013-07-15T01:11:37Z

Nottern link:

[http://about.me/mzamora I am]

=July 2013=

==Sunday July 14, 2013==

[[Tibor_Log|Tibor]] gave me a '''great tip''' for the tangent arcs: lines should be made before arcs in order to make them. So instead of doing the inner arcs first, do the lines.

Made a tutorial for using arrays in the tube construction. In this case from a 4" tube, we get a 40" in less than a minute. Then, all that's left is cleaning details.

<div><html><iframe width="560" height="315" src="//www.youtube.com/embed/UFjAJFr-NRY" frameborder="0" allowfullscreen></iframe></div></html>

==Friday July 12, 2013==

Made a tutorial about making the round edge steel tubes.

<div><html><iframe width="420" height="315" src="//www.youtube.com/embed/-IUTLvZBeqQ" frameborder="0" allowfullscreen></iframe></div></html>

==Thursday July 11, 2013==
Keep working on the round edge tubes. Here is the actual file with the 1/2" thick tubes. The 1/4" thick tubes are not ready yet.

[[File:Warehouse-round-0711.skp]]

==Wednesday July 10, 2013==

Changing steel tubes (Adding fillet and bigger holes) in two thicknesses

[[File:STbs0710.png|400px]]

More file formats for the [[Stock Pivot Plate]]

[[File:SPP-0710.png|150px]]

[[File:Pivplate1575-3.skp]] The real plate

[[File:Pivplatescaled-3.stl]] The scaled plate

[[File:Pivplatescaled-3f.stl]] The STL scaled plate

[[File:Pivplatescaled-3-laser.dxf]] The dxf scaled plate

==Tuesday July 9, 2013==

Working on the changes for the [[Stock Pivot Plate]]

[[File:SPP-0709.png|400px]]

=June 2013=
<span style="color:red">Great work! See [[Justin Log]] for tag team continuation. We have discussed using 1/4"x4"x4" square tube for the spokes so that we can make the wheel scalable by extending the length of the tubing. Justin is working on finishing the 3" hub to be a standalone module.

Wowwwww How big do you want to scale it?

==Friday June 21, 2013==

Split collar. I'm not sure if this was what you were asking for.
It's not easy to erase both disks to put the hub.

I've been with a cold. Still not 100% recovered.

[[File:Wheel0621.skp]]

[[File:Wheel0621.png|400px]]

'''Monica: Should the collar be split on both sides as in [[3_Inch_Wheel_Hub]]?'''

==Monday June 17, 2013==

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

==Sunday June 16, 2013==

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

==Saturday June 15, 2013==

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

==Friday June 14, 2013==
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

Monica Log

2013-07-13T19:01:02Z

Nottern link:

[http://about.me/mzamora I am]

=July 2013=

==Friday July 12, 2013==

Made a tutorial about making the round edge steel tubes.

<div><html><iframe width="420" height="315" src="//www.youtube.com/embed/-IUTLvZBeqQ" frameborder="0" allowfullscreen></iframe></div></html>

==Thursday July 11, 2013==
Keep working on the round edge tubes. Here is the actual file with the 1/2" thick tubes. The 1/4" thick tubes are not ready yet.

[[File:Warehouse-round-0711.skp]]

==Wednesday July 10, 2013==

Changing steel tubes (Adding fillet and bigger holes) in two thicknesses

[[File:STbs0710.png|400px]]

More file formats for the [[Stock Pivot Plate]]

[[File:SPP-0710.png|150px]]

[[File:Pivplate1575-3.skp]] The real plate

[[File:Pivplatescaled-3.stl]] The scaled plate

[[File:Pivplatescaled-3f.stl]] The STL scaled plate

[[File:Pivplatescaled-3-laser.dxf]] The dxf scaled plate

==Tuesday July 9, 2013==

Working on the changes for the [[Stock Pivot Plate]]

[[File:SPP-0709.png|400px]]

=June 2013=
<span style="color:red">Great work! See [[Justin Log]] for tag team continuation. We have discussed using 1/4"x4"x4" square tube for the spokes so that we can make the wheel scalable by extending the length of the tubing. Justin is working on finishing the 3" hub to be a standalone module.

Wowwwww How big do you want to scale it?

==Friday June 21, 2013==

Split collar. I'm not sure if this was what you were asking for.
It's not easy to erase both disks to put the hub.

I've been with a cold. Still not 100% recovered.

[[File:Wheel0621.skp]]

[[File:Wheel0621.png|400px]]

'''Monica: Should the collar be split on both sides as in [[3_Inch_Wheel_Hub]]?'''

==Monday June 17, 2013==

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

==Sunday June 16, 2013==

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

==Saturday June 15, 2013==

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

==Friday June 14, 2013==
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

Monica Log

2013-07-13T18:58:01Z

Nottern link:

=July 2013=

==Friday July 12, 2013==

Made a tutorial about making the round edge steel tubes.

<div><html><iframe width="420" height="315" src="//www.youtube.com/embed/-IUTLvZBeqQ" frameborder="0" allowfullscreen></iframe></div></html>

==Thursday July 11, 2013==
Keep working on the round edge tubes. Here is the actual file with the 1/2" thick tubes. The 1/4" thick tubes are not ready yet.

[[File:Warehouse-round-0711.skp]]

==Wednesday July 10, 2013==

Changing steel tubes (Adding fillet and bigger holes) in two thicknesses

[[File:STbs0710.png|400px]]

More file formats for the [[Stock Pivot Plate]]

[[File:SPP-0710.png|150px]]

[[File:Pivplate1575-3.skp]] The real plate

[[File:Pivplatescaled-3.stl]] The scaled plate

[[File:Pivplatescaled-3f.stl]] The STL scaled plate

[[File:Pivplatescaled-3-laser.dxf]] The dxf scaled plate

==Tuesday July 9, 2013==

Working on the changes for the [[Stock Pivot Plate]]

[[File:SPP-0709.png|400px]]

=June 2013=
<span style="color:red">Great work! See [[Justin Log]] for tag team continuation. We have discussed using 1/4"x4"x4" square tube for the spokes so that we can make the wheel scalable by extending the length of the tubing. Justin is working on finishing the 3" hub to be a standalone module.

Wowwwww How big do you want to scale it?

==Friday June 21, 2013==

Split collar. I'm not sure if this was what you were asking for.
It's not easy to erase both disks to put the hub.

I've been with a cold. Still not 100% recovered.

[[File:Wheel0621.skp]]

[[File:Wheel0621.png|400px]]

'''Monica: Should the collar be split on both sides as in [[3_Inch_Wheel_Hub]]?'''

==Monday June 17, 2013==

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

==Sunday June 16, 2013==

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

==Saturday June 15, 2013==

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

==Friday June 14, 2013==
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

File:Warehouse-round-0711.skp

2013-07-13T18:53:23Z

Nottern link:

Monica Log

2013-07-11T04:03:06Z

Nottern link:

=July 2013=
==Wednesday July 10, 2013==

Changing steel tubes (Adding fillet and bigger holes) in two thicknesses

[[File:STbs0710.png|400px]]

More file formats for the [[Stock Pivot Plate]]

[[File:SPP-0710.png|150px]]

==Tuesday July 9, 2013==

Working on the changes for the [[Stock Pivot Plate]]

[[File:SPP-0709.png|400px]]

=June 2013=
<span style="color:red">Great work! See [[Justin Log]] for tag team continuation. We have discussed using 1/4"x4"x4" square tube for the spokes so that we can make the wheel scalable by extending the length of the tubing. Justin is working on finishing the 3" hub to be a standalone module.

Wowwwww How big do you want to scale it?

==Friday June 21, 2013==

Split collar. I'm not sure if this was what you were asking for.
It's not easy to erase both disks to put the hub.

I've been with a cold. Still not 100% recovered.

[[File:Wheel0621.skp]]

[[File:Wheel0621.png|400px]]

'''Monica: Should the collar be split on both sides as in [[3_Inch_Wheel_Hub]]?'''

==Monday June 17, 2013==

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

==Sunday June 16, 2013==

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

==Saturday June 15, 2013==

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

==Friday June 14, 2013==
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

File:STbs0710.png

2013-07-11T04:02:49Z

Nottern link:

Stock Pivot Plate

2013-07-11T02:37:53Z

Nottern link:

=Note=

<span style="color:red">''''Needs the Stock Pivot Plate Sketchup with 3" hole, which is the hole after the precision tubing has been welded in. Further, 6 in 60 Buildout testing has shown that the stock pivot plates need to be 1/4" shorter at the rounded part because of conflicts when 2 of these plates are put together from opposite sides in joints. To address this, please generate a stock plate where the half circle begins 1/4" further away from the rounded edge, so that the overall plate is not 16" long, but 15-3/4" long. Leave the curvature identical, just move it 1/4" inch away from edge.</span>

==Full Size Design Files, Sketchup==
[[File:SPP-0709.png|400px]]

*'''1. Realistic Design File''': Needs 3" hole for exactly how 3" shaft will fit. Lengh of 15.75" as disussed above. - SKP: [[File:pivplate1575-3.skp]]

==Scale Model 3D Printing Files==
*'''2. Design File for 3D printing''' - Same as '''Realistic Design File''' except at 1/8 scale, so plate is 1" wide and ~2" long in this case. - [[File:pivplatescaled-3.skp]]
*'''3. STL File for 3D printing''' - same as above, exported to STL - [[File:pivplatescaled-3.stl]]
*'''4. Fixed STL File for 3D Print''' - see [[STL File Fixing]] for how to process an STL file to prepare it for printing - [[File:pivplatescaled-3f.stl]]
*'''5. Configuration File for 3D Print''' - Each type of printer uses a configuration file to accommodate differences between printers. Use this file for printing the part - [[File:pivotscaled-3f-config.config]]
*'''6. Optimized Design File for 3D Printing''' - For a specific printer to print a 3D print more effectively, the 3D printing file may want to be modified for faster printing. For example, the wall thickness could be changed so that the printer deposits a single-strand wall thickness for significantly increased printing speed. This will have to be determined by printing the file from points 6-7 and seeing the results. Wall thickness must be balanced with structural integrity/printability of the resulting parts. Further, sacrificial bridges between parts may need to be added so that tall structures being printed do not shake around on the moving printing bed.
*'''7. Optimized STL File for 3D Printing''' - [[File:pivplatescaled-3-opt.stl]]
*'''8. Optimized Fixed STL File for 3D Printing''' - [[File:pivplatescaled-3f-opt.stl]]
*'''9. Configuration file for Optimized 3D Printing''' - [[File:pivplatescaled-3f-config-opt.stl]]

==Laser Cutting==
[[File:SPP-0710.png|150px]]

For Laser Cutting out of stiff construction paper at 1/8 scale - we need to start with a scale model in Sketchup, corresponding to '''Design File for 3D Printing'''. Take the component to be printed. In order to generate a flat structure, the DXF can be generated directly from this SKP file.

*'''10. Laser Cutting File''' - DXF generated from SKP Design File for 3D Printing: [[File:pivplatescaled-3-laser.dxf]]

For non-flat files - such as tubing - this requires more work. Start with the tubing file in sketchup, export to DXF for the one side - and basically draw the rest of the tube as a flat structure - so a rectangle with perforations for the 4 folds that will allow a flat cutout to be folded into a 4-sided tube. Once folded, the tube should be taped together, or a tab should be added so taping together is easy.

==Full Size Files for CNC Cutting (Acetylene Torch, Laser, Plasma)==

*'''11. SKP Design File for Generating CNC Torch/Plasma Cutting Files''': Same as above except the hole accommodates a piece of precision tubing with 0.5" wall - so it is 4-3/16" diameter to allow 3/32" welding gap. This kind of spacing has been tested with laser cut metal. - [[File:pivplate1575-4.skp]]
*'''12. DXF CNC Cutting File''' - same as above, but exported to DXF. - [[File:pivplate1575-4.dxf]]

=Older Version=
DXF file - [[File:stockpivot.dxf]]

[[Image:stockpivotdxf.jpg]]

Note: the correct large hole diameter in the above is 4.75", which gives 1/8" room around the DOM for effective welding.

[[Image:stockpivot2.jpg|600px]]

'''Note: the above is used to generate a CAM file for CNC Torch Table cutting and Laser Cutter modeling - for the pivot plate. In practice, a 4.5" OD [[DOM]] with 3" ID is welded inside the 4.75"-4.875" hole (Mickey Mouse hole) to generate a pivot plate for a 3" shaft. To generate a CAM file for 3D printing, one must consider the 3" tubing and print out a 3" hole, not a 4.75"-4.875" hole. 4.75" is recommended as a hole for CNC cutting (leaves exactly 1/8" space around DOM for welding) - and a 4.875" hole is recommended for manual cutting to address inaccuracies. '''

*[[File:Stock_Pivot_Plate.skp]]
*[[File:Stock_Bonding_Plate_8_inches_x_16_inches.skp]]
*[[File:Stock_Spacer_Plate_8_inches_x_8_inches.skp]]

=Links=
*[[Samthetechie Log]]
*Print how-to - [[Ultimaker Post on Using Sketchup for 3D Printing]].

=Comments=
*''To me, the last holes and big hole are too close.''

You are right for most cases. There is a rare occasion when those small holes are used to bolt together multiple pivot plates while allowing a large shaft to be inserted, which may be useful under special circumstances. We can leave these for now, but will get more test data from our machines to see when these are useful. If they prove useless, we'll take them out or move the large hole farther out.

Monica Log

2013-07-11T02:17:25Z

Nottern link:

=July 2013=
==Wednesday July 10, 2013==

More file formats for the [[Stock Pivot Plate]]

[[File:SPP-0710.png|150px]]

==Tuesday July 9, 2013==

Working on the changes for the [[Stock Pivot Plate]]

[[File:SPP-0709.png|400px]]

=June 2013=
<span style="color:red">Great work! See [[Justin Log]] for tag team continuation. We have discussed using 1/4"x4"x4" square tube for the spokes so that we can make the wheel scalable by extending the length of the tubing. Justin is working on finishing the 3" hub to be a standalone module.

Wowwwww How big do you want to scale it?

==Friday June 21, 2013==

Split collar. I'm not sure if this was what you were asking for.
It's not easy to erase both disks to put the hub.

I've been with a cold. Still not 100% recovered.

[[File:Wheel0621.skp]]

[[File:Wheel0621.png|400px]]

'''Monica: Should the collar be split on both sides as in [[3_Inch_Wheel_Hub]]?'''

==Monday June 17, 2013==

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

==Sunday June 16, 2013==

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

==Saturday June 15, 2013==

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

==Friday June 14, 2013==
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

File:SPP-0710.png

2013-07-11T02:16:33Z

Nottern link:

File:Pivplatescaled-3-laser.dxf

2013-07-11T02:03:17Z

Nottern link: Nottern link uploaded a new version of "File:Pivplatescaled-3-laser.dxf": The first wasn't scaled.

File:Pivplatescaled-3-laser.dxf

2013-07-11T02:01:19Z

Nottern link:

File:Pivplatescaled-3f.stl

2013-07-11T01:47:14Z

Nottern link:

File:Pivplatescaled-3.stl

2013-07-11T01:41:51Z

Nottern link:

File:Pivplatescaled-3.skp

2013-07-11T01:33:15Z

Nottern link:

File:Pivplate1575-3.skp

2013-07-11T01:26:39Z

Nottern link:

Monica Log

2013-07-10T04:32:46Z

Nottern link:

=July 2013=
==Tuesday July 9, 2013==

Working on the changes for the [[Stock Pivot Plate]]

[[File:SPP-0709.png|400px]]

=June 2013=
<span style="color:red">Great work! See [[Justin Log]] for tag team continuation. We have discussed using 1/4"x4"x4" square tube for the spokes so that we can make the wheel scalable by extending the length of the tubing. Justin is working on finishing the 3" hub to be a standalone module.

Wowwwww How big do you want to scale it?

==Friday June 21, 2013==

Split collar. I'm not sure if this was what you were asking for.
It's not easy to erase both disks to put the hub.

I've been with a cold. Still not 100% recovered.

[[File:Wheel0621.skp]]

[[File:Wheel0621.png|400px]]

'''Monica: Should the collar be split on both sides as in [[3_Inch_Wheel_Hub]]?'''

==Monday June 17, 2013==

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

==Sunday June 16, 2013==

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

==Saturday June 15, 2013==

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

==Friday June 14, 2013==
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

Monica Log

2013-07-10T04:31:17Z

Nottern link:

=Tuesday July 9, 2013=

Working on the changes for the [[Stock Pivot Plate]]

[[File:SPP-0709.png|400px]]

<span style="color:red">Great work! See [[Justin Log]] for tag team continuation. We have discussed using 1/4"x4"x4" square tube for the spokes so that we can make the wheel scalable by extending the length of the tubing. Justin is working on finishing the 3" hub to be a standalone module.

Wowwwww How big do you want to scale it?

=Friday June 21, 2013=

Split collar. I'm not sure if this was what you were asking for.
It's not easy to erase both disks to put the hub.

I've been with a cold. Still not 100% recovered.

[[File:Wheel0621.skp]]

[[File:Wheel0621.png|400px]]

'''Monica: Should the collar be split on both sides as in [[3_Inch_Wheel_Hub]]?'''

=Monday June 17, 2013=

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

=Sunday June 16, 2013=

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

=Saturday June 15, 2013=

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

=Friday June 14, 2013=
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

File:SPP-0709.png

2013-07-10T04:29:49Z

Nottern link: Modified stock pivot plate

Modified stock pivot plate

Monica Log

2013-06-22T20:20:18Z

Nottern link:

<span style="color:red">Great work! See [[Justin Log]] for tag team continuation. We have discussed using 1/4"x4"x4" square tube for the spokes so that we can make the wheel scalable by extending the length of the tubing. Justin is working on finishing the 3" hub to be a standalone module.

Wowwwww How big do you want to scale it?

=Friday June 21, 2013=

Split collar. I'm not sure if this was what you were asking for.
It's not easy to erase both disks to put the hub.

I've been with a cold. Still not 100% recovered.

[[File:Wheel0621.skp]]

[[File:Wheel0621.png|400px]]

'''Monica: Should the collar be split on both sides as in [[3_Inch_Wheel_Hub]]?'''

=Monday June 17, 2013=

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

=Sunday June 16, 2013=

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

=Saturday June 15, 2013=

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

=Friday June 14, 2013=
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

Monica Log

2013-06-22T03:39:55Z

Nottern link:

=Friday June 21, 2013=

Split collar. I'm not sure if this was what you were asking for.
It's not easy to erase both disks to put the hub.

I've been with a cold. Still not 100% recovered.

[[File:Wheel0621.skp]]

[[File:Wheel0621.png|400px]]

'''Monica: Should the collar be split on both sides as in [[3_Inch_Wheel_Hub]]?'''

=Monday June 17, 2013=

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

=Sunday June 16, 2013=

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

=Saturday June 15, 2013=

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

=Friday June 14, 2013=
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

File:Wheel0621.skp

2013-06-22T03:39:12Z

Nottern link:

File:Wheel0621.png

2013-06-22T03:37:51Z

Nottern link:

3 Inch Wheel Hub

2013-06-22T03:22:01Z

Nottern link:

Note: this will be attached to the wheel from [[Monica Log]]

<html><img src="https://docs.google.com/drawings/d/1l20vqDJodXOBSeIZ6lxOeO1Kq6ht0_TcTOt-vfHEIxI/pub?w=600&h=500"></html>

[https://docs.google.com/a/opensourceecology.org/drawings/d/1l20vqDJodXOBSeIZ6lxOeO1Kq6ht0_TcTOt-vfHEIxI/edit edit]

*Start with this for a similar idea, but this is single-split and needs to be attached to a wheel hub.:

=Design Rationale 1=
*Take a very thick keyed coupler - say start with 3" solid coupler, 1/2" keyway
*Slit it in half
*Weld tabs on it for the 3/4" bolt hole
*Weld one half of the keyed coupler into the rest of the metal wheel

Ok, I'll try something following this--[[User:Nottern link|Nottern link]] ([[User talk:Nottern link|talk]]) 06:08, 16 June 2013 (CEST)

=Samples to Build From=
[[File:3inchhub.png|100px]]

=Version 1=
[[File:Wheelhub.png]]

=Version 2=
[[File:WheelHub2.png|400px]]

File:WheelHub2.png

2013-06-22T03:21:45Z

Nottern link:

Monica Log

2013-06-18T05:12:38Z

Nottern link:

=Monday June 17, 2013=

First came the 0,5" keyway in the hub

[[File:Wheel-hub.png]]

Then came the disks, with an external diameter of 2' and a thickness of 0,5".

[[File:Wheel-disks.png|400px]]

Then came the angles (2"x2"x1/4") and their attachment to the pipe of the wheel (a 1,75"x1,75"x4" solid with a 3/4" hole and two 0,5" side holes)

[[File:Wheel-angles.png|400px]]

So the wheel now looks like this

[[File:Wheel-v1.png]]

And here is the updated file. I'm not familiar with dimensions after making groups and all that.
I'm lacking of bolts too.
Here is the file. [[File:Wheel-0617.skp]]

=Sunday June 16, 2013=

Started building the wheel hub and disks to structure the wheel. The exterior disk of the hub is 12" and the smaller is 6". The hole, as expected is 3".

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

=Saturday June 15, 2013=

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

=Friday June 14, 2013=
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

File:Wheel-0617.skp

2013-06-18T05:12:25Z

Nottern link:

File:Wheel-v1.png

2013-06-18T05:02:05Z

Nottern link:

File:Wheel-angles.png

2013-06-18T05:01:13Z

Nottern link:

File:Wheel-hub.png

2013-06-18T05:00:01Z

Nottern link:

File:Wheel-disks.png

2013-06-18T04:59:02Z

Nottern link:

Monica Log

2013-06-16T16:23:02Z

Nottern link:

=Sunday June 16, 2013=

Started building the wheel hub and disks to structure the wheel.

[[File:Wheelhub.png|400px]]

All the parts are in the same file. [[File:Wheel-0616.skp]]

<span style="color:green"> The wheel itself has a [[3 Inch Wheel Hub]] but no bearing. Bearings are part of wheel units in [[Cory Log]] for use in Bulldozer and Trucktor. </span>.

=Saturday June 15, 2013=

Found a STEP CAD file of the FYR 3 SKF bearing that could be used.

[[File:CADofWheelBearing.stp]]

Note: [http://www.amazon.com/SKF-Heavy-Duty-Spherical-Expansion-Regreasable/dp/B007VGHNFQ It can be expensive]. '''Or, it could be cheap: [http://www.surpluscenter.com/item.asp?item=1-215-48-4&catname=powerTrans]'''

I've been trying to import it too sketchup (in the right scale xD) without success. I'll continue in the morning.

[[File:Bearingscalefail.png|400px]]

=Friday June 14, 2013=
Monica has started on the large steel tractor wheel [[File:Wheel.skp]]

[[Image:40wheel.png|500px]]

I think that 2 bolts (1/2") can be enough for the connection of the tracks. The thread could be inside the track or may be a parker bolt should be a better choice.
I used a 40" pipe Sch XS (0,5" thickness) for the exterior of the wheel. Rubber should be put between that and the tracks.

File:Wheel-0616.skp

2013-06-16T16:21:22Z

Nottern link:

3 Inch Wheel Hub

2013-06-16T16:18:17Z

Nottern link: