actually I didnt got that far to be honest. The speed of the wheel will be calculated with the labview program.
we are working with 2 students on it and the other student is making the labview program. I have to make sure the wheels interact properly with the ground floor or else the labview program will have no use.
I checked some of these documents from this post:
http://www.chiefdelphi.com/media/papers/2390
but i dont know how to tell solidworks that the rollers on the mecanum wheels need to provide a force in a certain direction