13-12-2011, 13:07
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Lead Mentor
 FRC #0973 (Greybots) Team Role: Mentor
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Join Date: Oct 2004
Rookie Year: 2004
Location: Atascadero
Posts: 5,500
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Re: pic: 816's 2011 Off-Season Teaser
A double sprocket before the teeth are hobbed, and the cylinder is likely a wheel hub to be press/cast into a plastic wheel.
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