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Charles Best and Ben Cook
Bill of Materials<br />
Part Material Stock Cost($/inch) Needed Length(inches) Cost($) Quantity Supplier<br />
Base Plate 1/4" X 2" 6061-T6 Aluminum Flat Stock 0.18 4 0.72 1 Ken's Shop<br />
Crank Shaft 5/16" 1018 Steel Bar Stock 0.02 3 0.06 1 Ken's Shop<br />
Crank Wheel 1.25" Dia 1018 Steel Bar Stock 0.17 0.25 0.04 1 Ken's Shop<br />
Main Upright<br />
Small Upright<br />
1/2" X 1-1/2" 6061-T6 Aluminum Flat Stock 0.21 6 1.26<br />
1<br />
Ken's Shop<br />
Piston 1/2" 1018 Steel Bar Stock 0.07 2.5 0.18 1 Ken's Shop<br />
Rocker Pin 5/16" 1018 Steel Bar Stock 0.02 1.1 0.02 1 Ken's Shop<br />
Spring Cover 1/2" Dia Brass Bar Stock 0.18 0.75 0.14 1 Ken's Shop<br />
Piston Rod Bushing 5/16" Dia Brass Bar Stock 0.22 0.5 0.11 1 Ken's Shop<br />
Cylinder 3/4" 360 Hex Brass Bar Stock 1.04 2.5 2.60 1 Ken's Shop<br />
Flywheel 2" Dia 1018 Steel Bar Stock 1.13 0.85 0.96 1 Ken's Shop<br />
8-32 Set Screw Steel N/A N/A 0.05 1 Ken's Shop<br />
Bushing Brass N/A N/A 0.56 3 Ken's Shop<br />
10-24 Screw Steel N/A N/A 0.06 1 Ken's Shop<br />
Spring Steel N/A N/A 0.19 1 Ken's Shop<br />
10-32 Stub Steel N/A N/A 0.08 2 Ken's Shop<br />
10-32 Screw Steel N/A N/A 0.05 4 Ken's Shop<br />
6-32 Screw Steel N/A N/A 0.05 1 Ken's Shop<br />
Barded Fitting Brass N/A N/A 0.89 1 Ken's Shop<br />
Total= $8.85 Page 24
Holes lined up for crankshaft<br />
Good surface finish<br />
Able to correct our mistakes<br />
Learned to use shop machines<br />
It runs
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