[Mr. Lim]

I posted this because there is some disagreement whether Mecanum wheel rollers will roll when driving straight forward or backwards. Some people say they will roll, and some people say they will stay stationary.

In my experience, I've noticed that Mecanum wheels often spin faster than the robot is moving, even when driving straight forward and backwards, much like the McCannots would, except not nearly as badly. Many say that it's because the Mecanum wheels are losing traction with the carpet, but I didn't see that being 100% the case. My theory is that the Mecanum rollers do roll, even when going straight forward or backward.

I think it's fairly obvious that these "McCannot" wheel rollers will definitely roll when driven straight forwards or backwards, resulting in less than ideal robot movement.

My question is for those who believe that mecanum rollers WON'T spin when driving straight forward or backwards. How many degrees do you need to start angling the McCannot rollers until they stop rolling completely when driving straight forward or backward? 90? 45? 1? 0.00000001?

I don't know the answer to this, but I'd be curious to see what others think...