April 2011 Production Run BOM

Download open source tractor 3D source code

Cut List: Tractor

Square tube:

• 4 × 76"×4"×4" tubes for base (shortened by 16")
• 3 × 5'×4"×4" under base tubes.
• 2 × 52"×4"×4" vertical chassis centre tubes.
• 2 × 55"×4"×4" vertical chassis tubes for front corners.
• 2 × 59"×4"×4" vertical chassis tubes for rear corners (PC mounting area).
• 2 × 68"×4"×4" top chassis tubes.
• 3 × 44"×4"×4" top chassis tubes.

Rounds:

• [4] 28" × 1-7/8" axle shafts (22" before; turn gussets around for easy wheel takeoff)
• [1] 56"×1-7/8" loader shaft.

Rectangle:

• [2] 100"×6"×3" 3/8" tubes for front loader arms.
• [4] 6"×4" 1/2" angle-iron to attach re-enforcing tunes to Loader arms.
• [4] 4-1/2" 1-7/8" DOM to mount shafts through the frame.
• [4] 3-1/2" 1-7/8" DOM to mount loader shafts to loader arms.
• [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.
• [4] 6" bushings/DOM to weld in gussets and wheel mounts.

Plate:

• [12] 10"×8"×0.5" steel plates to mount flange bearings and hydraulic motors to frame.
• [4] 6"×8"×1/2" QA-plate to mount motors to QA-motor plate.
• [2] 6?"×12"×1/2" plate to mount H-cylinders to frame base.
• [4] 6"×4"×1/2" plate to weld to H-cylinder base plates.
• [8] 1" diameter-hole nuts to weld into above plates.
• [1] 1/4" 4or5"×36" plate to mount Valves to.
• [4] 8"×12"×3/8" plate to connect Front H-cylinders to loader-arms.
• [4] 12×10×1/2" plates to make wheel mounts.
• [8] 4"×4"×1/2" plate cut diagonally to make [16] gussets.
• [4] × 32"diameter × 9" wheels.
• [16] thrust bearings - in the form of large washers with 1-7/8" hole - torch these on torch table from 1/8" stock

Steel Tracks

• Chain - 80 feet - $270 at $3.37/foot
• Links - $28
• Rebar - 140' at $1.57/foot - $220

P.C. & Seat mounting metal:

• [1] 144" 4×4" 1/4" thick angle Iron
• [1] 88" 2×2" 1/4" angle iron
• [1] 192"×4" 3/8" plate

Cut List: Power Cube

• Pump mount plate - 1/4"x6"x8"
• Engine mounting -

Cut List: Pulverizer

• 1-7/8" shaft -
• 2x4" square tubing
• Sheet metal
• Plates -
• Square Tubing -

Cut List: Quick Attach Plates

Quick attach plate with levers.

(See 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

Cut List: The Liberator

U-Channel Frame- 7/16" thick heavy u-channel, 6" wide

• - Dalton Hydraulics cylinders
• [2] 42" - verticals
• [2] 29" - table holders
• [4] 21" - bottoms and tops

Arms, feet, hopper supports, hopper mounting

• [4] 4”x6”x3/8” – 72” long – heavy angle arms
• [4] 1/4”x10”x10” plate - feet
• [2] 1/4”x2”x2” sq. tubing, 48” long – back support
• [2] 1/4”x4”x4” angle , 40” long – angle front support
• [2] 1/2”x3”x12” flat - hopper mounting plate
• [2] 1/2"x3"x14" flat - hopper mounting plate

Drawer

Press Foot

• 1”x4”x10” plate
• 1”x6”x12” plate

Roller Guides

Grate

• [2] 1/4”x2”x2” angle, 6'
• [2] 1/4”x2”x2” angle, 3'
• 1/4”x2” bar, 71.5”
• 3/8” rebar, 105'

Hopper Sheet

• [1] 5'x10'x1/8" sheet

Other

• [8] 3”x3”x1/2” - cylinder mounts for both cylinders
• 2.5”x3/16” sq. tubing, 98" long - sleeves
• 1” shaft, 6” long - main cylinder mount
• 1” shaft, 6.5” long (shaker)
• 2”x2”x1/4” tubing, 3' long (2)
• 4”x4”x1/4” angle, 3' long (2)

Bolts

Functionality list:

• [22] 5"bolts+nuts + [44] washers to suit to attach re-enforcing tubes, angle-irons & H/cylinders to L-arms.
• [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.
• [42] 3/4"x9" bolts, [80] washers, and [40] metal lock nuts. This is for the assembly of the main frame.
• [16] 1/2"x2" bolts + [16] nylon lock nuts + [16] lock washers to suit. Motor attachment to motor QA/interface plate. Equivalent to 32" of threaded rod.
• [8] 3/4"x2" bolts for motor; [8] nuts to weld; [8] lock washers. Attachment of motor interface plate to frame.
• [32] 5/8"x2"bolts + [32] metal lock nuts, [32] lock washers to suit. Mounting of bearings to frame.
• [32] 9/16"x2" fine thread bolts, [32] washers, [32] nylon lock nuts. Attachment of wheel to wheel hub. Includes studs, nuts, and washers.
• [4] 3/4"x4.5" bolts; [8] nuts; [4] nylon lock nuts. Mounting of wheel bushings to wheel shafts.

TOTALS:

• [40] 3/4"x5.5" bolts
• [42] 3/4"x9" bolts
• [4] 3/4"x4.5" bolts
• [8] 3/4"x2" bolts
• [120] 3/4" washers
• [80] 3/4" metal lock nuts
• [16] 3/4" nuts
• [4] 3/4" nylon lock nuts
• [8] 3/4" lock washers

• [16] 1/2"x2" bolts
• [16] 1/2" nylon lock nuts
• [16] 1/2" lock washers

• [32] 5/8"x2" bolts
• [32] 5/8" metal lock nuts
• [32] 5/8" lock washers

• [32] 9/16"x2" bolts
• [32] 9/16" washers
• [32] 9/16" nylon lock nuts