Quote:
Originally Posted by sgreco
Our prototype had an idler in the back. We built the real thing, left off the idler for weight purposes, and found it made no difference at all.
(Just avoid sharp edges, but that's pretty obvious).
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I was thinking an idle wheel wouldn't really affect performance much. We're using the same design and we never even considered an idle wheel because it does about as much work as a slick surface.