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Originally Posted by Alan Anderson
Nope. The force is directed diagonally.
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Yes, the force is directed diagonally, along the axis of the roller. But not the force you imagine. See link at bottom of this post.
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An ideal mecanum roller can only apply force to the carpet in the direction parallel to the roller axis. Any component of force perpendicular to the roller axis acts to spin the roller instead.
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Of course. No disagreement here.
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The vectors don't subtract from the 10 pounds, but they do move it away from straight ahead.
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Nope. The 10 pounds is not "moved away" from straight ahead. The 10 pounds is the
forward component of the (larger) force acting along the roller axis.
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Try your thought experiment with a single mecanum wheel. Better yet, try a real experiment with a single mecanum wheel, applying a spinning torque to it with your hand, and trying to hold it in place at the same time. You'll definitely find as much force pointing sideways as pointing forward.
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This does not contradict anything I have said in any of my previous posts. See this link for more detailed explanation:
http://www.chiefdelphi.com/forums/sh...5&postcount=50
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