Thread: Omni vs Mecanum CoF ?
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Unread 09-12-2013, 15:01
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Re: Omni vs Mecanum CoF ?
Quote:
Originally Posted by Ether View Post
The numbers don't mean anything if you don't know how the tests were conducted.

I suspect the 1.0 number for the omni was tested in the plane of the wheel, not at a 45 degree angle. Someone from AM please correct me if this is not true (I'm sure AM posted their test procedure somewhere but I can't find at right now).
AndyMark is good about posting forward vs. side for their wheels, so I believe that the CoF comparison is valid (never expected it tested at 45deg). What I was less sure of is that the CoF measurement would have exhibited the sqrt(2)/2, but I believe your diagram predicts that it would. IFI does not report forward vs. side for their mecanum and given the similarity in CoF to the Omni, I am highly suspicious that they are reporting the CoF for the roller material, not the wheel assembly.