Bill of Materials
|
1/4" Acrylic
plate
|
7x3.5
|
|
cost
|
$1.5
|
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|
1/8" Delrin plate
|
2x8
|
|
cost
|
$1
|
|
Aluminum plate,
1/16" thick
|
9x15
|
|
cost
|
$5.08
|
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|
Aluminum plate,
1/4" thick
|
5x15
|
|
Cost
|
$9.60
|
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|
Aluminum 1/2"
square stock
|
1in
|
cost
|
$.5
|
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|
Aluminum rod,
1/4" diameter
|
|
cost
|
$2.31
|
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|
Aluminum rod,
3/8" diameter
|
2in
|
cost
|
$.3
|
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|
Aluminum Square Tube
Stock - 3/4"x3/4", 1/8" Wall
|
|
cost
|
$3.12
|
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|
Aluminum 90 Degree
Angle Stock - 1"x1"x6', 1/4" thick
|
15in
|
cost
|
$6.225
|
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|
Steel threaded rod,
1/4"-20
|
|
cost
|
$4.06
|
$4.06
|
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|
Spring steel,
0.02" thick, 1/2" wide
|
|
cost
|
$1.74
|
$1.74
|
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|
Bright Brass
Surface-Mount Hinge with Holes Nonremovable Pin, 3/4" Open Width
|
|
cost
|
$0.81
|
$1.62
|
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|
Flanged SS bearing -
1/4" ID, 1/2" OD, 1/8" Thick
|
|
cost
|
$5.62
|
$11.24
|
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|
Flanged brass bushing
- 1/4" ID, 3/8" OD
|
|
cost $0.43
|
$1.72
|
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|
E-Clip retaining rings
- 1/4" Dia.
|
|
cost
|
$0.06
|
$0.24
|
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|
Polypropylene wheels,
3" diameter, 1/4" bore
|
2
|
|
|
|
$2.86
|
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|
3" Extension
springs
|
|
cost
|
$1.22
|
|
Tamiya 72001 Planetary
Gearbox Kit (includes motor)
|
|
cost
|
$14.25
|
$14.25
|
|
Tamiya 70168 Double
Gearbox Kit (includes 2 motors)
|
|
Cost
|
$8.75
|
$8.75
|
The things we bought
|
Black and red Paint
|
cost
|
$7
|
|
Fabric
|
cost
|
$1.30
|
|
Two rubber wheels
|
cost
|
$3.8
|
|
Two Bearings
|
Cost
|
$8.40
|
|
The total cost of all components
|
$97.835
|
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