RC08Drive Module

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Revision as of 14:24, 14 December 2007 by Stefan (talk | contribs) (Costs)
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The Drive Module packages the gears, wheel, and motor into an useful robot maneuvering tool. Robocup 2008 Mechanical

2008 RoboJackets RoboCup Drive Module

Parts & Components

Bearings

1/4" Shaft Diameter
Vendor - McMaster-Carr
Part No. - 57155K304
Cost - $6.80 Each
Description - Miniature Precision SS Ball Bearing - ABEC-5 Flanged Open, .25" ID, .5" OD, .125" Width
Drawing - File:RC08-MC-57155K304.pdf

Gears

Input
Vendor - SDP/SI
Part No. - S1063Z-072A020
Cost - $9.83 ($6.76 in bulk)
Description - 0.2778" Pitch Dia, 0.125" Face Width, 0.125" Bore (must bore out to 4mm)
Drawing -
Note - Al 2024
Output
Vendor - SDP/SI
Part No. - S1066Z-072S100
Cost - $17.72 ($13.02 in bulk)
Description - 1.3889" Pitch Dia, 0.125" Face Width, 0.125" Bore (must bore out to 4mm)
Drawing -
Note - Stainless 303

Shaft & Etc

1/4" Hex Bar Stock
Vendor - SDP/SI
Part No. - A 7C21-0436
Cost - $4.39 Each ($3.27 in bulk)
Description - Carbon Steel 36" length
1/4" Hex Broache
Vendor - McMaster-Carr
Part No. - 2875A15
Cost - $105.37
Description - Hexagon Broach 1/4" Hex, 6" Broach Length
1/4" E-Clips
Vendor - McMaster-Carr
Part No. - 97633A130
Cost - $6.54 (Pack of 100)
Description - Black-Phosphate Steel External Retaining Ring for 1/4" Shaft Diameter
Note - Inside of bearings

Other

1/2" Long Stand Off
Vendor - McMaster-Carr
Part No. - 91780A195
Cost - $0.34 Each ($0.27 in bulk)
Description - Aluminum Female Threaded Hex Standoff 1/4" Hex, 1/2" Length, 8-32 Screw Size
1/4" Flat Socket Cap Screws
Vendor - McMaster-Carr
Part No. - 92210A190
Cost - $11.58 (Pack of 100)
Description - 18-8 SS Flat Head Socket Cap Screw 8-32 Thread, 1/4" Length
M3 Screws (Drive Motor Mount)
Vendor - McMaster-Carr
Part No. - 92005A116
Cost - $2.16 (Pack of 100)
Description - Metric Pan Head Phillips Machine Screw Zinc-Plated Steel, M3 Size, 6mm Length, .5mm Pitch
Washer
Vendor - McMaster-Carr
Part No. - 98029A026
Cost - $5.95 (packs of 25)
Description - Black-Oxide Steel Thick Flat Washer #8 Screw Size, 11/64" ID, 3/8" OD,.052" - .073" Thk

Costs

Per Module (Estimated)

Note you cannot buy materials in small enough quantity. $85.00 + $9.83 + $17.72 + 2*$6.80 + $0.238 + 3*$0.0373 + $0.34*3 + $0.0654*3 + $0.304 + $0.34 = $128.36 --> $140.00