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Re: Tiny wheel
2'' or so wheels aren't at all unheard of in FRC - you see them in some octanum module designs. Generally, from what I've seen, you essentially make them out of solid delrin and they're plenty strong.
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"Mmmmm, chain grease and aluminum shavings..."
"The breakfast of champions!"
Member, FRC Team 449: 2007-2010
Drive Mechanics Lead, FRC Team 449: 2009-2010
Alumnus/Technical Mentor, FRC Team 449: 2010-Present
Lead Technical Mentor, FRC Team 4464: 2012-2015
Technical Mentor, FRC Team 5830: 2015-2016
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