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Unread 13-01-2011, 19:44
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Re: Omni-directional drive

Actually, using all omni wheels would allow for omnidirectional movement, it's just that moving left and right wouldn't be up to you, it would be up to whatever hit you from the side.

Any omni, mecanum, or holonomic style drive works because of vectors. If you don't have at least one vector pointing sideways, you won't be able to drive sideways.

With 4 omnis all oriented the same way, all the driven vectors point front/back. The rollers don't really have vectors of their own, as they aren't driven.

I really hope that makes sense.
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