https://wiki.opensourceecology.org/index.php?action=history&feed=atom&title=Universal_Wheel_UnitUniversal Wheel Unit - Revision history2026-05-17T10:06:18ZRevision history for this page on the wikiMediaWiki 1.39.13https://wiki.opensourceecology.org/index.php?title=Universal_Wheel_Unit&diff=297810&oldid=prevMarcin: /* Links */2024-06-23T21:15:03Z<p><span dir="auto"><span class="autocomment">Links</span></span></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:15, 23 June 2024</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A wheeled version of the [[Universal Track Unit]], where wheels can be added on top of the tracks simply via a recessed accessible shaft</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A wheeled version of the [[Universal Track Unit]], where wheels can be added on top of the tracks simply via a recessed accessible shaft</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>=<del style="font-weight: bold; text-decoration: none;">Links</del>=</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>=<ins style="font-weight: bold; text-decoration: none;">More</ins>=</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept [[MicroTrac Prototype 1]], [[MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept [[MicroTrac Prototype 1]], [[MicroTrac Prototype 2]]. Universal wheel unit was not used in production <ins style="font-weight: bold; text-decoration: none;">on the [[MicroTrac]] </ins>because of its size and thus requirement for the non-symmetric track design. Production <ins style="font-weight: bold; text-decoration: none;">Microtrac </ins>version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. It appears that the key came loose and Universal Wheel Unit would need to be disassembled to replace the key. This may be done in the future, but right now (2024) the tractor is operating with 2 wheel drive with the rear drive disconnected. Fix job is estimated to be 4 hours - removal of Universal Wheel Unit, wheel, shaft removal, replacement of key - then reassembly. '''Lessons''' - this type of deep repair must be streamlined. Further modularity is required, so from 2024 onwards we are looking at one single motor size, chain geardown to with [[120 Chain]], with replaceability of motor in 5 minutes and replaceability of geardown in 5 minutes with quick release sprockets and couplers. [[LifeTrac v16]] has demonstrated 3500 lb torque drive system with clamp couplers - though the couplers are quite lengthy at about 12".</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*<ins style="font-weight: bold; text-decoration: none;">Universal Wheel Unit was also used in the [[Trencher 2013_Prototype]]</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*In 2023, LifeTrac VI is in use. It appears that the key came loose and Universal Wheel Unit would need to be disassembled to replace the key. This may be done in the future, but right now (2024) the tractor is operating with 2 wheel drive with the rear drive disconnected. Fix job is estimated to be 4 hours - removal of Universal Wheel Unit, wheel, shaft removal, replacement of key - then reassembly. '''Lessons''' - this type of deep repair must be streamlined. Further modularity is required, so from 2024 onwards we are looking at one single motor size, chain geardown to with [[120 Chain]], with replaceability of motor in 5 minutes and replaceability of geardown in 5 minutes with quick release sprockets and couplers. [[LifeTrac v16]] has demonstrated 3500 lb torque drive system with clamp couplers - though the couplers are quite lengthy at about 12".</div></td></tr>
</table>Marcinhttps://wiki.opensourceecology.org/index.php?title=Universal_Wheel_Unit&diff=297806&oldid=prevMarcin: /* Links */2024-06-23T20:58:12Z<p><span dir="auto"><span class="autocomment">Links</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:58, 23 June 2024</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept [[MicroTrac Prototype 1]], [[MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept [[MicroTrac Prototype 1]], [[MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. It appears that the key came loose and Universal Wheel Unit would need to be disassembled to replace the key. This may be done in the future, but right now (2024) the tractor is operating with 2 wheel drive with the rear drive disconnected. Fix job is estimated to be 4 hours - removal of Universal Wheel Unit, wheel, shaft removal, replacement of key - then reassembly. '''Lessons''' - this type of deep repair must be streamlined. Further modularity is required, so from 2024 onwards we are looking at one single motor size, chain geardown to with [[120 Chain]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. It appears that the key came loose and Universal Wheel Unit would need to be disassembled to replace the key. This may be done in the future, but right now (2024) the tractor is operating with 2 wheel drive with the rear drive disconnected. Fix job is estimated to be 4 hours - removal of Universal Wheel Unit, wheel, shaft removal, replacement of key - then reassembly. '''Lessons''' - this type of deep repair must be streamlined. Further modularity is required, so from 2024 onwards we are looking at one single motor size, chain geardown to with [[120 Chain]]<ins style="font-weight: bold; text-decoration: none;">, with replaceability of motor in 5 minutes and replaceability of geardown in 5 minutes with quick release sprockets and couplers. [[LifeTrac v16]] has demonstrated 3500 lb torque drive system with clamp couplers - though the couplers are quite lengthy at about 12".</ins></div></td></tr>
</table>Marcinhttps://wiki.opensourceecology.org/index.php?title=Universal_Wheel_Unit&diff=297805&oldid=prevMarcin: /* Links */2024-06-23T20:56:13Z<p><span dir="auto"><span class="autocomment">Links</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:56, 23 June 2024</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept [[MicroTrac Prototype 1]], </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept [[MicroTrac Prototype 1]], <ins style="font-weight: bold; text-decoration: none;">[</ins>[MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"> </del>[MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. It appears that the key came loose and Universal Wheel Unit would need to be disassembled to replace the key. This may be done in the future, but right now (2024) the tractor is operating with 2 wheel drive with the rear drive disconnected. Fix job is estimated to be 4 hours - removal of Universal Wheel Unit, wheel, shaft removal, replacement of key - then reassembly. '''Lessons''' - this type of deep repair must be streamlined. Further modularity is required, so from 2024 onwards we are looking at one single motor size, chain geardown to with [[120 Chain]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. It appears that the key came loose and Universal Wheel Unit would need to be disassembled to replace the key. This may be done in the future, but right now (2024) the tractor is operating with 2 wheel drive with the rear drive disconnected. Fix job is estimated to be 4 hours - removal of Universal Wheel Unit, wheel, shaft removal, replacement of key - then reassembly. '''Lessons''' - this type of deep repair must be streamlined. Further modularity is required, so from 2024 onwards we are looking at one single motor size, chain geardown to with [[120 Chain]]</div></td></tr>
</table>Marcinhttps://wiki.opensourceecology.org/index.php?title=Universal_Wheel_Unit&diff=297804&oldid=prevMarcin: /* Links */2024-06-23T20:56:02Z<p><span dir="auto"><span class="autocomment">Links</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:56, 23 June 2024</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept <del style="font-weight: bold; text-decoration: none;">[[</del>[[MicroTrac Prototype 1]], MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept [[MicroTrac Prototype 1]], </div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> [</ins>MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. It appears that the key came loose and Universal Wheel Unit would need to be disassembled to replace the key. This may be done in the future, but right now (2024) the tractor is operating with 2 wheel drive with the rear drive disconnected. Fix job is estimated to be 4 hours - removal of Universal Wheel Unit, wheel, shaft removal, replacement of key - then reassembly. '''Lessons''' - this type of deep repair must be streamlined. Further modularity is required, so from 2024 onwards we are looking at one single motor size, chain geardown to with [[120 Chain]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. It appears that the key came loose and Universal Wheel Unit would need to be disassembled to replace the key. This may be done in the future, but right now (2024) the tractor is operating with 2 wheel drive with the rear drive disconnected. Fix job is estimated to be 4 hours - removal of Universal Wheel Unit, wheel, shaft removal, replacement of key - then reassembly. '''Lessons''' - this type of deep repair must be streamlined. Further modularity is required, so from 2024 onwards we are looking at one single motor size, chain geardown to with [[120 Chain]]</div></td></tr>
</table>Marcinhttps://wiki.opensourceecology.org/index.php?title=Universal_Wheel_Unit&diff=297803&oldid=prevMarcin: /* Links */2024-06-23T20:55:46Z<p><span dir="auto"><span class="autocomment">Links</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:55, 23 June 2024</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept [[[[MicroTrac Prototype 1]], <del style="font-weight: bold; text-decoration: none;">[[</del>MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept [[[[MicroTrac Prototype 1]], MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. It appears that the key came loose and Universal Wheel Unit would need to be disassembled to replace the key. This may be done in the future, but right now (2024) the tractor is operating with 2 wheel drive with the rear drive disconnected. Fix job is estimated to be 4 hours - removal of Universal Wheel Unit, wheel, shaft removal, replacement of key - then reassembly. '''Lessons''' - this type of deep repair must be streamlined. Further modularity is required, so from 2024 onwards we are looking at one single motor size, chain geardown to with [[120 Chain]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. It appears that the key came loose and Universal Wheel Unit would need to be disassembled to replace the key. This may be done in the future, but right now (2024) the tractor is operating with 2 wheel drive with the rear drive disconnected. Fix job is estimated to be 4 hours - removal of Universal Wheel Unit, wheel, shaft removal, replacement of key - then reassembly. '''Lessons''' - this type of deep repair must be streamlined. Further modularity is required, so from 2024 onwards we are looking at one single motor size, chain geardown to with [[120 Chain]]</div></td></tr>
</table>Marcinhttps://wiki.opensourceecology.org/index.php?title=Universal_Wheel_Unit&diff=297801&oldid=prevMarcin: /* Links */2024-06-23T20:53:32Z<p><span dir="auto"><span class="autocomment">Links</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:53, 23 June 2024</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept [[[[MicroTrac Prototype 1]], [[MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] - as well as the Microtrac proofs of concept [[[[MicroTrac Prototype 1]], [[MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. <del style="font-weight: bold; text-decoration: none;">LifeTrac VII was a proof </del>of <del style="font-weight: bold; text-decoration: none;">concept model</del>,</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. <ins style="font-weight: bold; text-decoration: none;">It appears that the key came loose and Universal Wheel Unit would need to be disassembled to replace the key. This may be done in the future, but right now (2024) the tractor is operating with 2 wheel drive with the rear drive disconnected. Fix job is estimated to be 4 hours - removal </ins>of <ins style="font-weight: bold; text-decoration: none;">Universal Wheel Unit, wheel, shaft removal, replacement of key - then reassembly. '''Lessons''' - this type of deep repair must be streamlined. Further modularity is required, so from 2024 onwards we are looking at one single motor size</ins>, <ins style="font-weight: bold; text-decoration: none;">chain geardown to with [[120 Chain]]</ins></div></td></tr>
</table>Marcinhttps://wiki.opensourceecology.org/index.php?title=Universal_Wheel_Unit&diff=297800&oldid=prevMarcin at 20:50, 23 June 20242024-06-23T20:50:09Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:50, 23 June 2024</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]].</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]], [[LifeTrac VII]], and [[LifeTrac VI]] <ins style="font-weight: bold; text-decoration: none;">- as well as the Microtrac proofs of concept [[[[MicroTrac Prototype 1]], [[MicroTrac Prototype 2]]. Universal wheel unit was not used in production because of its size and thus requirement for the non-symmetric track design. Production version (in house use) of [[MicroTrac v17.10]] utilized dedicated smaller motors with sprocket mounted directly to them, without the frame superstructure</ins>.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. LifeTrac VII was a proof of concept model,</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**In 2023, LifeTrac VI is in use. LifeTrac VII was a proof of concept model,</div></td></tr>
</table>Marcinhttps://wiki.opensourceecology.org/index.php?title=Universal_Wheel_Unit&diff=297799&oldid=prevMarcin: /* Links */2024-06-23T20:46:54Z<p><span dir="auto"><span class="autocomment">Links</span></span></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:46, 23 June 2024</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16]]<ins style="font-weight: bold; text-decoration: none;">, [[LifeTrac VII]], and [[LifeTrac VI]].</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">**In 2023, LifeTrac VI is in use. LifeTrac VII was a proof of concept model,</ins></div></td></tr>
</table>Marcinhttps://wiki.opensourceecology.org/index.php?title=Universal_Wheel_Unit&diff=297796&oldid=prevMarcin: /* Links */2024-06-23T20:42:27Z<p><span dir="auto"><span class="autocomment">Links</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:42, 23 June 2024</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Links=</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* <del style="font-weight: bold; text-decoration: none;">- </del>[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*[[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version <ins style="font-weight: bold; text-decoration: none;">of the self-contained Universal Wheel Unit]] - wheel-based only, works and has been interchanged between [[LifeTrac v16</ins>]]</div></td></tr>
</table>Marcinhttps://wiki.opensourceecology.org/index.php?title=Universal_Wheel_Unit&diff=297790&oldid=prevMarcin at 20:37, 23 June 20242024-06-23T20:37:20Z<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:37, 23 June 2024</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A wheeled version of the [[Universal Track Unit]], where wheels can be added on top of the tracks simply via a recessed accessible shaft</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>A wheeled version of the [[Universal Track Unit]], where wheels can be added on top of the tracks simply via a recessed accessible shaft</div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">=Links=</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* - [[LifeTrac_Construction_Set#Tractor_Construction_Set_in_FreeCAD_-_2017|2017 version]]</ins></div></td></tr>
</table>Marcin