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Unread 20-01-2011, 17:05
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Re: Mecanum Wheel Traction

Quote:
Originally Posted by Nathan Streeter View Post
The reason why mecanum drives can't push hard is not because the wheels have poor traction, but because each wheel pushes diagonally... in order for the robot to go in a straight line the directly opposing forces cancel, leaving a single resultant vector.
In the forward direction, the "single resultant vector that they leave" has the same magnitude as the forward force of a standard wheel.

The reason mecanum drives can't push hard is that the reaction force of the floor on the roller, being aligned at 45 degrees, is greater than the forward vector... so mecanum wheels reach the traction limit before standard wheels do.


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