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Re: Colson Wheel and AndyMark HTD Pulley
Honestly, I'm not seeing the ground clearance issue with the belt; if that were a problem, you wouldn't have people running VexPro 72t gears direct-mounted to 4'' omni-wheels, which I have seen work with no problems. Besides, if anything contacts, it'll be the flange, and given the near-redundancy of a flange in this setup anyway it's not exactly clear that there are any real wear issues with that.
Also, while it's nice to keep the traction wheel in a butterfly drive small, 3'' isn't exactly "much too big" - I've seen teams run butterflies with two 4'' wheels which worked fine and weren't particularly heavy.
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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
Last edited by Oblarg : 13-11-2013 at 00:06.
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I learned about how FIRST really is about so much more than a robot competition, it is about team building and the individual. - Adel Hodiwala [more] 
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