Quote:
Originally Posted by Ari423
While Colsons are non-marking, the OP was asking for non-marking omni wheels, and I don't think Colsons would perform very well as omni wheels except maybe on extremely slippery floors at low speeds (to avoid them warming up and getting gummy).
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Ringmaster from the last season of battlebots used wheels that appear similar to colsons in an unconventional kiwi setup. While it probably wouldn't work on carpet i'm assuming your marking problems are on a low friction surface like a gymnasium so it could work.
It's also safe to assume that ringmaster was using motors considerably more powerful than CIMS and that their side by side omni setup would result in more friction so you'll have to test it for yourself.
Ringmaster:
http://battlebots.com/robot/the-ringmaster/