Quote:
Originally Posted by Paul Copioli
To answer the earlier question, what we do on carpet is use an idler wheel on a spring connected to an encoder. this will not really take away from normal force (very, very small spring load) but we are concerned this year that we have to use the actual wheel instead of a small wheel and that the low friction will make that one slip too.
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I think that we are going to ask in the Official Q&A if a small caster with no motive force, and no way of providing traction can be used to get surface speed and direction, but I am fairly certain they will give a resounding "NO".