April Production Run: Difference between revisions

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=Tractor=
=Introduction=
==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==
We have produced [[4 Tractors]], [[4 CEB Presses]], [[9 Power Cubes]], and [[3 Soil Pulverizers]] in the OSE Production run of 2011 - from April to Sep. 2011. We cleared $25k - achieving a milestone of economic significance for OSE products. We featured the tractor at the Kansas City Maker Faire of 2011. This production run culminated in the build of our [[Workshop]] and [[HabLab]] living units - as a product of using the tractor, CEB Press, Soil Pulverizer, and Power Cubes. A documentary by Channel 21 from Berkeley - ''The Open Source Ecologist'' - and a piece by Land Rover Magazine also came out of this:
*Safety harness
*Seat
*Top grate


=Power Cube=
<html><iframe src="https://player.vimeo.com/video/27027669?title=0&amp;byline=0&amp;portrait=0" width="400" height="300" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe>
==Hydraulics==
*Pump
*Filter
*Strainer
==Structure==
==Engine==
*Engine
*Coupler
*Throttle cable
*Muffler
==Electrical==
*Battery
*Starter switch


 
<iframe width="400" height="300" src="https://www.youtube.com/embed//rwI4zp4OhCU" frameborder="0" allowfullscreen></iframe>
=CEB Press=
==Controller==
*solenoid drivers
*Arduino
*breakout shield
*Fuse holder
*Connectors
*Box
*Safety plug
Clips
==Hydraulics==
==Structure==
 
[http://openfarmtech.org/weblog/2010/09/extreme-traction/ Update] as of Sep. 7, 2010:
 
<html>
<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>
</html>


Video of Tractor and Frame assembly in William's second month [[Dedicated Project Visits]] report:
See blog posts:
 
 
<html>
<object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/E43SNJtnxs8&amp;hl=en_US&amp;fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/E43SNJtnxs8&amp;hl=en_US&amp;fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object>
</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]
=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
*June 1 Production Run Update - [http://blog.opensourceecology.org/2011/06/june-1-production-run-update/]
*August - Channel 21 from Berkeley, California - does a small documentary - [[The Open Source Ecologist]]
*September - End of Production Run Report - [http://blog.opensourceecology.org/2011/09/dear-true-fans-and-supporters/]


===Package 2===
=Links=
*Basic 4 wheel drive tractor - $3583
*[[April_2011_Production_Run_Balance_of_System]]
*Tracks - $520
*[[April_2011_Production_Run_Hydraulics_BOM]]
*Front loader with quick attach plate- $1840
*[[April_2011_Production_Run_Bolts_BOM]]
*Quick Attach plate - $124
*[[April_2011_Production_Run_BOM_Combined_Cut_List_Collapsed]]
*Front loader bucket - $400
*[[April_2011_Production_Run_BOM_Combined_Cut_List]]
*2 Power Cubes - $2472 for 35 hp
*[[April 2011 Production Run BOM]]


Total cost is $8815 in materials fpr 35 hp.
=Tools=
*[1] [[Magnectic Drill]], $480
*[1] Stamford 3-phase generator, 24kW, 2-bearing - [http://cgi.ebay.com/Stamford-Newage-Gen-Type-184E-24KW-3-phase-SAE-5-7-5-/150591437686?_trksid=p3286.m7&_trkparms=algo%3DLVI%26itu%3DUCI%26otn%3D1%26po%3DLVI%26ps%3D63%26clkid%3D8862172383374722764] $1420
*[1] Hobart MegaMig 450 welder, $500 used
*[1] Hobart 200A welder, $300 used
*[1] 3-phase wall plug - frikkin' $60 - I wish I had a 3D printer
*[1] Digital Tachometer - [http://www.amazon.com/Digital-Photo-Laser-Tachometer-Contact/dp/B001N4QY66/ref=sr_1_4?ie=UTF8&qid=1304324388&sr=8-4] $14
*[1] Morse 4 Live Center for Lathe
*[1] 1-3/8" drill bit for wheel shafts
*[1] hydraulic motor for direct 1800RPM generator drive - [https://www.surpluscenter.com/item.asp?catname=&qty=1&item=9-7073-150]


===Package 3===
a[[Category:LifeTrac III]]
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:April 2011 Production Run]]
[[Category:LifeTrac II]]
[[Category:BOM]]
[[Category:Production Runs]]

Latest revision as of 20:34, 24 October 2012

Introduction

We have produced 4 Tractors, 4 CEB Presses, 9 Power Cubes, and 3 Soil Pulverizers in the OSE Production run of 2011 - from April to Sep. 2011. We cleared $25k - achieving a milestone of economic significance for OSE products. We featured the tractor at the Kansas City Maker Faire of 2011. This production run culminated in the build of our Workshop and HabLab living units - as a product of using the tractor, CEB Press, Soil Pulverizer, and Power Cubes. A documentary by Channel 21 from Berkeley - The Open Source Ecologist - and a piece by Land Rover Magazine also came out of this:

See blog posts:

  • June 1 Production Run Update - [1]
  • August - Channel 21 from Berkeley, California - does a small documentary - The Open Source Ecologist
  • September - End of Production Run Report - [2]

Links

Tools

  • [1] Magnectic Drill, $480
  • [1] Stamford 3-phase generator, 24kW, 2-bearing - [3] $1420
  • [1] Hobart MegaMig 450 welder, $500 used
  • [1] Hobart 200A welder, $300 used
  • [1] 3-phase wall plug - frikkin' $60 - I wish I had a 3D printer
  • [1] Digital Tachometer - [4] $14
  • [1] Morse 4 Live Center for Lathe
  • [1] 1-3/8" drill bit for wheel shafts
  • [1] hydraulic motor for direct 1800RPM generator drive - [5]

a

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