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Unread 10-01-2011, 14:22
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Re: Drivetrain First Thoughts?

Quote:
Originally Posted by Jared341 View Post
You can model a mecanum wheel as a regular wheel of the same diameter and tread material but with 71% the coefficient of friction (assuming 45 degree, friction-free rollers. In actuality, it is >71% for F/B and <71% for L/R due to friction.).

When you aren't slipping the wheel, you get the same speed out of a mecanum wheel as you would with a regular wheel of the same diameter. It is a common misconception (and one I had believed until recently) that a mecanum wheel is necessarily slower than any other wheel.

See here for the math: http://www.chiefdelphi.com/media/papers/2390
Does anyone know, then, if the friction coefficients listed for AndyMark mecanum wheels are scaled in this manner? You wouldn't want to aim for 12 ft/sec and get 17 ft/sec because the values were already scaled.
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