April Production Run: Difference between revisions

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==Structure==
==Structure==


[http://openfarmtech.org/weblog/2010/09/extreme-traction/ Update] as of Sep. 7, 2010:
=April 2011 Production Run BOM=


<html>
[[April 2011 Production Run BOM]]
<object width="500" height="310"><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="movie" value="http://vimeo.com/moogaloop.swf?clip_id=14718706&amp;server=vimeo.com&amp;show_title=1&amp;show_byline=1&amp;show_portrait=1&amp;color=&amp;fullscreen=1&amp;autoplay=0&amp;loop=0" /><embed src="http://vimeo.com/moogaloop.swf?clip_id=14718706&amp;server=vimeo.com&amp;show_title=1&amp;show_byline=1&amp;show_portrait=1&amp;color=&amp;fullscreen=1&amp;autoplay=0&amp;loop=0" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="always" width="500" height="310"></embed></object><p><a href="http://vimeo.com/14718706">Extreme Traction</a> from <a href="http://vimeo.com/user2016419">Marcin Jakubowski</a> on <a href="http://vimeo.com">Vimeo</a>.</p>
</html>
[[Image:lt24.jpg|250px]]
[[Image:lt25.jpg|250px]]
[[Image:lt26.jpg|250px]]


Download open source tractor [http://openpario.mime.oregonstate.edu/projects/lifetrac3d/files 3D source code]
[[Category:LifeTrac III]]
 
=Cut List=
 
Square tube:
*<span style="color:green"> 4 × 7'8"×4"×4" tubes for base.
*<span style="color:green"> 3 × 5'×4"×4" under base tubes.
*<span style="color:green"> 2 × 52"×4"×4" vertical chassis centre tubes.
*<span style="color:green"> 2 × 55"×4"×4" vertical chassis tubes for front corners.
*<span style="color:green"> 2 × 59"×4"×4" vertical chassis tubes for rear corners (PC mounting area).
*<span style="color:green"> 2 × 84"×4"×4" top chassis tubes.
*<span style="color:green"> 3 × 44"×4"×4" top chassis tubes.
 
Rounds:
*<span style="color:green">[4] 22", 27" or 28" × 1-7/8" axle shafts.
*<span style="color:green">[2] 56"×1-7/8" loader shafts.
*<span style="color:green">[2] 100"×6"×3" 1/4" or 3/8"? tubes for front loader arms.
*<span style="color:green">[2] 86"×6"×3" 1/4" or 3/8"? tubes for rear loader arms.
*<span style="color:green">[2] 45"×6"×3" 1/4" or 3/8"? tubes to re-enforce loaders.
*<span style="color:green">[8] 6"×4" 3/8" or 1/2" angle-iron to attach re-enforcing tunes to L-arms.
*[44] 5"bolts+nuts + [88] washers to suit to attach re-enforcing tubes, angle-irons & H/cylinders to L-arms.
*<span style="color:green">[4] 4-1/2" 1-7/8" DOM to mount shafts through the frame.
*<span style="color:green">[4] 3-1/2" 1-7/8" DOM to mount loader shafts to loader arms.
*<span style="color:green">[8] thrust bearings - in the form of large washers with 1-7/8" hole to go between frame-shaft-DOM-mounts and loader arm mounts.
*<span style="color:green">[4] 6" bushings/DOM to weld in gussets and wheel mounts.
 
Plate:
 
*<span style="color:green">[12] 10"×8"×0.5" steel plates to mount flange bearings and hydraulic motors to frame.
*<span style="color:green">[4] 6"×8"×1/2" QA-plate to mount motors to QA-motor plate.
*<span style="color:green">[2] 12"×12"×1/2" plate to mount H-cylinders to frame base.
*<span style="color:green">[4] 12"×4"×1/2" plate to weld to H-cylinder base plates.
*<span style="color:green">[16+] 1"diameter-hole nuts to weld into above plates.
*<span style="color:green">[1] 1/4" 4or5"×36" plate to mount Valves too.
*<span style="color:green">[4] 10"×12"×3/8" plate to connect Rear H-cylinders to loader-arms.
*<span style="color:green">[4]  8"×12"×3/8" plate to connect Front H-cylinders to loader-arms.
*<span style="color:green">[4] 12×10×1/2" plates to make wheel mounts.
*<span style="color:green">[8] 4"×4"×1/2" plate cut diagonally to make [16] gussets.
*<span style="color:green">[4] × 32"diameter × 9" wheels.
 
P.C. & Seat mounting metal:
 
*<span style="color:green">[1] 144" 4×4" 1/4" thick angle Iron
*<span style="color:green">[1] 88" 2×2" 1/4" angle iron
*<span style="color:green">[1] 192"×4" 3/8" plate
 
=Other=
 
*<span style="color:green">[16] thrust bearings - in the form of large washers with 1-7/8" hole.
 
=Bolts=
 
Functionality list:
 
*<span style="color:green">[40] 3/4x5-1/2", with [40] washers for one side and [40] metal lock nuts for the other side. For wheel plates & cylinder plates.
*<span style="color:green">[42] 3/4"x9" bolts, [80] washers, and [40] metal lock nuts. This is for the assembly of the main frame.
*<span style="color:green">[16] 1/2"x2" bolts + [16] nylon lock nuts + [16] lock washers to suit. Motor attachment to motor QA/interface plate. These could be 2" studs, as these are welded to the motor QA/interface plate.
*<span style="color:green">[8] 3/4"x2" bolts for motor; [8] nuts to weld; [8] lock washers. Attachment of motor interface plate to frame.
*<span style="color:green">[32] 5/8"x2"bolts + [32] metal lock nuts, [32] lock washers to suit. Mounting of bearings to frame.
*<span style="color:green">[32] 9/16"x2" fine thread bolts, [32] washers, [32] nylon lock nuts. Attachment of wheel to wheel hub. Includes studs, nuts, and washers.
*<span style="color:green">[4] 3/4"x4.5" bolts; [8] nuts; [4] nylon lock nuts. Mounting of wheel bushings to wheel shafts.
 
TOTALS:
 
*<span style="color:green">[40] 3/4"x5.5" bolts
*<span style="color:green">[42] 3/4"x9" bolts
*<span style="color:green">[4] 3/4"x4.5" bolts
*<span style="color:green">[8] 3/4"x2" bolts
*<span style="color:green">[120] 3/4" washers
*<span style="color:green">[80] 3/4" metal lock nuts
*<span style="color:green">[16] 3/4" nuts
*<span style="color:green">[4] 3/4" nylon lock nuts
*<span style="color:green">[8] 3/4" lock washers
 
*<span style="color:green">[16] 1/2"x2" bolts
*<span style="color:green">[16] 1/2" nylon lock nuts
*<span style="color:green">[16] 1/2" lock washers
 
*<span style="color:green">[32] 5/8"x2" bolts
*<span style="color:green">[32] 5/8" metal lock nuts
*<span style="color:green">[32] 5/8" lock washers
 
*<span style="color:green">[32] 9/16"x2" bolts
*<span style="color:green">[32] 9/16" washers
*<span style="color:green">[32] 9/16" nylon lock nuts
 
=Hydraulics=
 
Note that the following list involves 2 loaders. For a simpler version, a single front loader is sufficient. Two loaders are used for extreme flexibility.
 
[[Image:blenderhydraulics.jpg|600px]]
(download Blender file [http://openpario.mime.oregonstate.edu/projects/lifetrac3d/files here])
==Main==
Parts from Surplus Center:
 
Functionality list:
 
Note: Green indicates finalized shopping list from Surplus Center. Blue indicates list from McMaster Carr. Red is Dalton Hydralics. See [[Parts Sourcing]] for contact information.
 
#<span style="color:#009000"> [8] 1-7/8" Flange Bearings - [https://www.surpluscenter.com/item.asp?item=1-210-30-4&catname=powerTrans] or 2-1/2" Flange Bearings [https://www.surpluscenter.com/item.asp?item=1-213-40-4&catname=powerTrans]
#<span style="color:#009000">[2] Front Loader cylinders - 36" - $174 - 48 5/8" retracted length - [https://www.surpluscenter.com/item.asp?item=9-6775&catname=hydraulic]
#<span style="color:#009000"> [4] 3/8 NPTM x 1/2 NPTF 90 SWIVEL [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-1501-6-8] for Front Loader Cylinders up to hose
##4.9 square inch area at 2500 PSI implies 12000 lb of force for each cylinder
#<strike> [0] Rear loader cylinders - [https://www.surpluscenter.com/item.asp?item=9-7711-24&catname=hydraulic]</strike>
#<strike> [0] SAE 8M x 1/2 NPTF 90 SWIVEL [https://www.surpluscenter.com/item.asp?catname=&qty=1&item=9-6901-8-8] for Rear Loader Cylinders</strike>
#<span style="color:#009000">[4] QA plate hydraulic cylinders <strike>& 2 Rear Loader</strike> [https://www.surpluscenter.com/item.asp?item=9-7619-30&catname=hydraulic]
#<strike>[0] 3/8 NPTM x 1/2 NPTF 90 SWIVEL [https://www.surpluscenter.com/item.asp?catname=&qty=1&item=9-1501-6-8] for Q.A. Plate Cylinders</strike>
#<span style="color:#009000">[4] Motors - [https://www.surpluscenter.com/item.asp?item=9-7469&catname=]
##[8] SAE M 10 to NPT M 1/2" for Ports [https://www.surpluscenter.com/item.asp?item=9-6401-10-8&catname=hydraulic]
##[4] SAE 4M TO 1/4" NPTM CONNECTOR for Case Drains [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-6401-4-4]
##[8] 1/2" QC for Motors [https://www.surpluscenter.com/item.asp?item=928&catname=hydraulic]
##[4] 1/4" QC for motors [https://www.surpluscenter.com/item.asp?item=9-6321&catname=hydraulic]
#<span style="color:#009000">[2] 1-1/4 SHAFT COUPLER W 5/16" KEYWAY - [https://www.surpluscenter.com/item.asp?item=1-1563-J&catname=]
#<span style="color:#009000">[2] 1-3/8" 6T fully splined shafting - [https://www.surpluscenter.com/item.asp?item=1-2938-6&catname=]
#<span style="color:#009000">[2] Female 1-3/8" 6T spline coupling - [https://www.surpluscenter.com/item.asp?item=1-1562&catname=], $30 each
#<span style="color:#009000">[12] 1.875" double split shaft collars - [https://www.surpluscenter.com/item.asp?item=1-2768-187&catname=powerTrans]
##got 10 double split
##got 2 single split - [https://www.surpluscenter.com/item.asp?item=1-2767-187&catname=powerTrans]
#<span style="color:#009000">[1] 1/2" male QC tip, which already have female part [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=928-aa]
 
==Valves==
 
*<span style="color:#009000">[1] 3-spool motor valve, 25 gpm - [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-6761], $288
*<span style="color:#009000">[4] 1/2" Quick Couplers [https://www.surpluscenter.com/item.asp?item=928&catname=hydraulic] - for motor valve work ports
*<span style="color:#009000">[4] 1/2" NPT M to NPT M 90deg Elbow for Motor Valve working ports [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-5500-8-8] - for 2 sets of work ports to wheel motors
*<span style="color:#0000f1">[4] 3/4" NPT quick couplers - Dalton Hydraulics - 2 for in/out, 2 for auxiliary work ports
*<span style="color:#009000">[2] 1/2 NPT hex nipples [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-5404-8-8]-for auxiliary pair of motor valve work ports
*<span style="color:#009000">[2] 3/4 NPT hex nips [https://www.surpluscenter.com/item.asp?item=9-5404-12-12&catname=hydraulic] - in and out of valve
*<span style="color:#009000">[2] 3/4 NPT to 1/2 NPT bushing [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-5406-12-8] - auxiliary work ports
 
==OSE Danfoss Black 2 Spool==
 
*<span style="color:#009000">[4] SAE 8M TO 1/2" NPTM CONNECTOR for working ports [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-6401-8-8]
*<span style="color:#009000">[6] 1/2" NPT QUICK COUPLER F/F S20-4 [https://www.surpluscenter.com/item.asp?item=928&catname=hydraulic]
*<span style="color:#009000">[1] SAE 10 PLUG for OSE BLACK 2 Spool [https://www.surpluscenter.com/item.asp?item=9-6408-10&catname=hydraulic]
*<span style="color:#009000">[2] SAE 10M TO 1/2" NPT CONNECTOR [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-6401-10-8]
 
==3 Spool Husco==
*<span style="color:red">[1] 3/4" NPT quick couplers - Dalton Hydraulics - 1 pair for inlet
*<span style="color:#009000">[1] 3/4" NPT nip - [https://www.surpluscenter.com/item.asp?item=9-5404-12-12&catname=hydraulic] - for inlet
*<span style="color:#009000">[3] 1/2" nip for return cross [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-5404-8-8]
*<span style="color:#009000">[1] 1/2"-1/4" bushing - to accept case drain return [https://www.surpluscenter.com/item.asp?item=9-5406-8-4&catname=hydraulic]
*<span style="color:#009000">[2] quick coupler pairs for return line - [https://www.surpluscenter.com/item.asp?item=928&catname=hydraulic]
*<span style="color:blue">Pipe cross fitting on the return line to accommodate case drain return - [http://www.mcmaster.com/#iron-and-steel-pipe-fittings-and-pipe/=7vmyru]
*<strike>[1] SAE 12 M to NPT 3/4 M Connector [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-6401-12-12]</strike>
*<strike>[1] SAE 10M TO 1/2" NPT CONNECTOR [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-6401-10-8]</strike>
*<strike>[1] 1/2 X 1/2 X 1/2 NPTF TEE [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=9-5605-8-8-8]</strike>
 
==2 Spool Prince Valve==
*<strike>[1] 3/4" Quick Coupler for outlet (already included in central 3-spool motor valve)</strike>
*<span style="color:#009000">[2] 3/4" NPT nip for inlet/outlet - [https://www.surpluscenter.com/item.asp?item=9-5404-12-12&catname=hydraulic]
*[1] 3/4" NPT tee (already have these) for inlet
*<span style="color:#009000">[2] 3/4" to 1/2" bushings - [https://www.surpluscenter.com/item.asp?item=9-5406-12-8&catname=hydraulic]
*<span style="color:#009000">[1] 1/2" NPT male elbow - [https://www.surpluscenter.com/item.asp?item=9-5500-8-8&catname=hydraulic]
*<span style="color:#009000">[2] 1/2" quick coupler pairs - [https://www.surpluscenter.com/item.asp?item=928&catname=hydraulic]
 
==Cushion Valves==
 
*<span style="color:#009000">[2] 1/2 NPT 30 GPM 1500-3000 PSI HYD CUSHION VALVES - [https://www.surpluscenter.com/item.asp?item=9-4019-50-H&catname=hydraulic]
*<span style="color:#009000">[4] 1/2" male QC tips to plug into valves, which already have female QCs [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=928-aa]
*<span style="color:#009000">[2] 1/2 NPTM x 1/2 NPTF swivel [https://www.surpluscenter.com/item.asp?catname=&qty=1&item=9-1404-8-8] for cushion valve to mount tees, for separating to right and left cylinders; only one swivel needed per cushion valve
*<span style="color:#009000">[4] 1/2" nip - [https://www.surpluscenter.com/item.asp?item=9-5404-8-8&catname=hydraulic] - going from between swivel and tee.
*<span style="color:#009000">[4] NPTF Tee [https://www.surpluscenter.com/item.asp?item=9-5605-8-8-8&catname=hydraulic]- 4 for loaders only, not QA plates
 
==Power Cube==
 
*Note: pump is already obtained
 
*<span style="color:#0000f1">[1] Coupler half, 5/8" - [http://www.mcmaster.com/#6408k15/=1qajma $10]
*<span style="color:#0000f1">[1] Coupler half, 1" - [http://www.mcmaster.com/#6408k15/=1qakef $10]
*<span style="color:#0000f1">[1] Solid spider - [http://www.mcmaster.com/#6408k95/=1qale7 $14]
*<strike>[1] Breather cap - [https://www.surpluscenter.com/item.asp?item=9-7285-75&catname=hydraulic] - $8 </strike>
**<span style="color:purple">[1] 3/4 NPT coupling - found at big box hardware stores
*<span style="color:green">[1] Suction strainer, 2" to 1-1/4" - [https://www.surpluscenter.com/item.asp?item=9-7290-125&catname=hydraulic] - $23
**Use for dual Power Cubes
**<span style="color:purple">[1] Use 2" coupler from bix box store to thread into Power Cube frame
*<span style="color:green">[1] Pressure relief for power cube bypass- [https://www.surpluscenter.com/item.asp?item=9-6135-50-H&catname=hydraulic]
*[1] 20 GPM return Line Filter - [https://www.surpluscenter.com/item.asp?item=9-059&catname=hydraulic]
*[1] 3/4" NPT Swivel for return line filter going into frame - [https://www.surpluscenter.com/item.asp?item=9-1404-12-12&catname=hydraulic]
*[2] 3/4" NPT hex nip on both sides of filter - [https://www.surpluscenter.com/item.asp?item=9-5404-12-12&catname=hydraulic]
*[1] 1"-3/4" NPT reducer bushing for frame receptacle for return filter - [https://www.surpluscenter.com/item.asp?item=9-5406-16-12&catname=hydraulic]
*[1] 3/4" quick coupler for return line to filter
*[2] 1/2" quick couplers for main power lines
*
 
Hoses:
 
*[1] 2 foot hose from pump outlet to return line filter - [https://www.surpluscenter.com/item.asp?item=905-1224&catname=hydraulic]
*[2] 10 foot hoses, already have these - [https://www.surpluscenter.com/item.asp?item=905-12120&catname=hydraulic]
 
Pressure Bypass:
 
*[1] 1/2" NPT Bypass valve - [https://www.surpluscenter.com/item.asp?item=9-6135-50-H&catname=hydraulic]
*[3] 1/2" Quick couplers - 1 complete for tee near pump, one going from return filter to tee, and male tip for return line. This gives one extra female quick coupler left over. This set of 3 QCs does not cover hoses going from and to the PowerCube.
*[4] 1/2" NPTF hex nip for one and other side of tee, on both tees - [https://www.surpluscenter.com/item.asp?item=9-5404-8-8&catname=hydraulic]
*[2] 1/2" NPTF tee - from outlet of pump to pressure bypass, and from bypass valve into return line filter - [https://www.surpluscenter.com/item.asp?item=9-5605-8-8-8&catname=hydraulic]
 
=Hoses=
 
==Between Motor Valves & Motors==
*<span style="color:green">[4] 1/2" X 36" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE for in/out of the valves [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1236]
*<span style="color:green">[4] 1/2" X 36" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE for in/out of front motors [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1236]
*<span style="color:green">[4] 1/2 X 1/2 X 1/2 NPTF TEE [https://www.surpluscenter.com/item.asp?item=9-5605-8-8-8&catname=hydraulic]
*<span style="color:green">[4] 1/2" X 48" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE for rear motors [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1248]
 
==Motor Case Drains==
*<span style="color:green">[2] 1/4" X 72" NPTM 2750 PSI HYD HOSE to run parallel with tractor sides [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=916-1472]
*<span style="color:green">[1] 1/4" X 30" NPTM 2750 PSI HYD HOSE from Tee to Tee in return hose [https://www.surpluscenter.com/item.asp?item=916-1430&catname=hydraulic]
*<span style="color:green">[1] 1/4" X 36" NPTM 2750 PSI HYD HOSE to Rear Motors [https://www.surpluscenter.com/item.asp?item=916-1436&catname=hydraulic]
*<span style="color:green">[3] 1/4 X 1/4 X 1/4 NPTF TEE [https://www.surpluscenter.com/item.asp?item=9-5605-4-4-4&catname=hydraulic]
*<span style="color:green">[3] 1/4 NPT hex nipples [https://www.surpluscenter.com/item.asp?item=9-5404-4-4&catname=hydraulic]
*[4] 1/4" NPT quick couplers are already with the motors
 
==Front Loader==
*<span style="color:green">[2] 1/2" X 12" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE from Valves to Cushion [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1212]
*<span style="color:green">[2] 1/2" X 36" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE for '''left''' front loader cylinder [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1236]
*<span style="color:green">[1] 1/2" X 48" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE for '''right''' front loader cylinder [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1248]
*<span style="color:green">[1] 1/2" X 60" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE for '''right''' front loader cylinder [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1260]
 
==Front loader QA Cylinder Hoses==
*<span style="color:green">[4] 3/8" NPTM x 1/2" NPTF swivel - [https://www.surpluscenter.com/item.asp?item=9-1404-6-8&catname=hydraulic] - swivels for QA cylinders
*<span style="color:green">[2] 1/2" nips - going from cylinder swivels to tees - [https://www.surpluscenter.com/item.asp?item=9-5404-8-8&catname=hydraulic]
*<span style="color:green">[2] 1/2" NPTF tees - from cylinder to hoses - [https://www.surpluscenter.com/item.asp?item=9-5605-8-8-8&catname=hydraulic]
*<span style="color:green">[2] male QC tips - for plugging into control valves - [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=928-aa]
*<span style="color:green">[2] 1/2" X 48" NPTM 3000 PSI HYD HOSE [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1248]
*<span style="color:green">[1] 1/2" X 120" NPTM 3000 PSI HYD HOSE [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-12120]
*<span style="color:green">[1] 1/2" X 144" NPTM 3000 PSI HYD HOSE [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-12144]
 
==Rear Loader Hoses==
*<span style="color:green">[2] 1/2" X 12" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE to Cushion Valve [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1212]
*<span style="color:green">[1] 1/2" X 60" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1260]
*<span style="color:green">[1] 1/2" X 96" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1296]
*<span style="color:green">[1] 1/2" X 84" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1284]
*<span style="color:green">[1] 1/2" X 120" 1/2 NPTM X 1/2 NPTM 3000 PSI HYD HOSE [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-12120]
 
==Rear loader Q.A. Cylinder Hoses==
*<span style="color:green">[4] 3/8" NPTM x 1/2" NPTF swivel - [https://www.surpluscenter.com/item.asp?item=9-1404-6-8&catname=hydraulic] - swivels for QA cylinders
*<span style="color:green">[2] 1/2" nips - going from cylinder swivels to tees - [https://www.surpluscenter.com/item.asp?item=9-5404-8-8&catname=hydraulic]
*<span style="color:green">[2] 1/2" NPTF tees - from cylinder to hoses - [https://www.surpluscenter.com/item.asp?item=9-5605-8-8-8&catname=hydraulic]
*<span style="color:green">[2] male QC tips - for plugging into control valves - [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=928-aa]
*<span style="color:green">[2] 1/2" X 48" NPTM 3000 PSI HYD HOSE [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-1248]
*<span style="color:green">[1] 1/2" X 120" NPTM 3000 PSI HYD HOSE [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-12120]
*<span style="color:green">[1] 1/2" X 144" NPTM 3000 PSI HYD HOSE [https://www.surpluscenter.com/item.asp?catname=hydraulic&qty=1&item=905-12144]
 
==Seat==
 
* [1] Tractor Seat [https://www.surpluscenter.com/item.asp?item=1-3213-BK&catname=]
 
[[Image:178bearings.jpg|thumb|Wheel bearings]]
[[Image:lt2frontloadercyl.jpg|thumb|Front loader cylinder]]
[[Image:lt2maincylfitting.jpg|thumb|Front loader cylinder fittings]]
[[Image:lt2rearloadercyl.jpg|thumb|Rear loader cylinder]]|
[[Image:lt2rearloadercylfit.jpg|thumb|Rear loader cylinder fittings]]
[[Image:lt2qaplatecyl.jpg|thumb|Quick attach plate cylinder]]
[[Image:lt2wheelmotors.jpg|thumb|Wheel motors]]
[[Image:lt2wheelmotorfittings.jpg|thumb|Wheel motor fittings]]
[[Image:lt2wheelmotorcdfittings.jpg|thumb|Wheel motor case drain fittings]]
[[Image:lt2splinecouplerfemale.jpg|thumb|Spline coupler, female part]]
[[Image:lt2splineshaftmale.jpg|thumb|Spline shaft, male]]
[[Image:lt2wheelmotorcoupler.jpg|thumb|Wheel motor shaft coupler]]
[[Image:lt2shaftcollars.jpg|thumb|Shaft collars, 3 per wheel]]
[[Image:lt22spoolmotorvalve.jpg|thumb|2 spool motor valve, 25 gpm]]
[[Image:lt25spoolvalve.jpg|thumb|5 spool valve, 20 gpm]]
[[Image:lt2cushionvalve.jpg|thumb|Cushion valve for front and rear loaders]]
[[Image:lt2halfinchswivel.jpg|thumb|1/2 inch NPT swivel]]
[[Image:lt2halfinchnip.jpg|thumb|1/2 inch NPT nip]]
[[Image:lt2halfinchtee.jpg|thumb|Half inch tee]]
[[Image:lt2pressurerelief.jpg|thumb|Pressure relief valve for Power Cube]]
[[Image:lt2splineshaftmale.jpg|thumb|Spline shaft, male]]
 
=Total Weight=
 
*Frame 4x4x1/4" square tubing - 1277 lb
*Loader arms (2 sets), 3x6x3/8" tubing - 900 lb
*Loader arm shafts, angles - 150 lb (even)
*Loader arm cylinder mount plates (base (66lb) and top(80)) - 146 lb
*Loader arm bottom eyes - 46
*Hydraulics, wheel bearings - 811 lb
*Wheel mounting plates, gussets, tubes - 112 lb
*Bearing and motor plates - 160 lb
*Wheels - 200 lb
*Wheel tracks (140 lb chain, 209 lb rebar (2.6 lb/ft for 1" rebar)) - 349 lb
*Bolts - 75 lb
*Pins - 30 lb
*Power Cube (1) - 420 lb
*Quick Attach Plates (2 sets) - 234 lb
 
Total weight of tractor with 2 sets of loader arms, 1 small Power Cube, and wheel tracks 4910 lb dry weight, with 2 Power Cubes - 5330 lb. Weight of loader arms with cylinders and Quick Attach plates: 940 front, 900 back, for total of about 1840 lb. Weight of 2 Power Cube version with only front loader - 4430 lb.
 
=Cost=
==Basic Structure==
[[Image:LT-frame-BOM.jpg]]
 
This is about a buck fifty per pound of the 2214 lb machine, or about the going price of tomatoes. That is without the PowerCube. If you use an off-shelf 18 hp engine – the price may be $1225 ($500 for 18 hp engine + $200 pump +  $225 frame + $300 balance of system). The total is then $4808.
 
==Front Loader==
 
*Heavy duty front loader arm metal (3/8″x3″x6″ rectangular tube) – $500
*Cylinders – $600
*Control valve – $200
*Hoses – $100
*Couplers and fittings – $100
*Quick Attach plate – $150Cushion valve – $66
TOTAL FRONT LOADER COST – $1716
 
==Rear Loader==
 
*Rear Loader Cylinders – $520
*Heavy duty rear loader arm metal (3/8″x3″x6″ rectangular tube)- $340
*Selector valve (4) – $180
*Quick attach plate – $150
*Cushion valve – $66
TOTAL REAR LOADER COST – $1256
 
==Steel Tracks==
 
*Chain - 80 feet - $270 at $3.37/foot
*Links - $28
*Rebar - 140' at $1.57/foot -  $220
TOTAL for Wheel Tracks - $518
 
==Quick Attach Plates==
[[Image:qaplates.jpg|thumb|Quick attach plate with levers.]]
(See [http://openpario.mime.oregonstate.edu/projects/oselifetrac/documents Open Pario for design])
 
*[6]1"x5" pins (30") - $10
*[129"] 3/16"x3" sq tubing - $46
*[113"] 1/2"x3" flat - $34
*[6"] 1" DOM tubing - $15
*[24"] 1" rebar - $3
*[66"] 1/4"x2" flat - $6
*[6"] 1/2" rebar - $1
*[15"] 3/4" threaded rod - $3
*[8] 3/4" lock nuts - $1.60
*[2] 3/4" nuts - $0.40
 
MATERIALS FOR EACH QA PLATE - $124
 
Overall cost for a dual loader tractor – wheel base of about 7×7 feet, designed to handle 3 Power Cubes, for a power limit up to approximately 150 hp – $6550 without the PowerCubes. Design is absolutely scalable, such that a half-size version – or MicroTrac, may be made – and it can be designed readily from our Blender model drawings.
 
==Package Options==
===Package 1===
*Basic 4 wheel drive tractor - $3583
*Tracks - $520
*Front loader with quick attach plate- $1840 (with quick attach plate)
*Power Cube - $1236 for 18 hp
 
Total cost is $7179 in materials. The 18 hp may be undersized, so we recommend 2 PowerCubes for 35 hp
 
===Package 2===
*Basic 4 wheel drive tractor - $3583
*Tracks - $520
*Front loader with quick attach plate- $1840
*Quick Attach plate - $124
*Front loader bucket - $400
*2 Power Cubes - $2472 for 35 hp
 
Total cost is $8815 in materials fpr 35 hp.
 
===Package 3===
Now here’s the good part. We aim to develop the induction furnace within 2 years, with which we will be able to produce all tractor structure and components, minus the rubber parts, from scrap steel. This means that we will demonstrate how to build a tractor at the cost of scrap metal plus rubber, plus energy to run the induction furnace. This should be about $1k in materials such as hoses and hydraulic seals, plus labor. This indicates a possibility of closing the industrial divide between the developed and developing worlds.
[[Category:LifeTrac II]]

Revision as of 23:58, 25 April 2011

Tractor

Frame

  • Frame proper
  • Wheel mounting plates
  • Cylinder mounting plates

Loader

Wheels

  • Shafts
  • Bearings
  • Couplers

Hydraulics

  • Valves
  • Hoses
  • Cylinders
  • Cylinder pins
  • Hydraulic motors

Seat and Safety

  • Safety harness
  • Seat
  • Top grate

Power Cube

Hydraulics

  • Pump
  • Filter
  • Strainer

Structure

Engine

  • Engine
  • Coupler
  • Throttle cable
  • Muffler

Electrical

  • Battery
  • Starter switch


CEB Press

Controller

  • solenoid drivers
  • Arduino
  • breakout shield
  • Fuse holder
  • Connectors
  • Box
  • Safety plug

Clips

Hydraulics

Structure

April 2011 Production Run BOM

April 2011 Production Run BOM

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