Quote:
Originally Posted by Ether
Whenever someone says that, I always wonder what they mean.
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Technically, the rollers on the mecanum wheels don't slip in an ideal design (there is no slip between the surface of the rollers and the carpet). Often, however, there isn't a 1-to-1 relation between the tangential speed of the wheel and forward velocity of the robot.
So, if you look at it from the perspective of the wheel, and you don't want to take the above paragraph (or more) to describe it, you say that the wheels are slipping.
It may not be technically correct, but I've come to use it as mecanum "slang" if you will. Unfortunately, I use it so much that I didn't think twice before using it here.