Quote:
Originally Posted by Ether
The only wasted power in a mecanum is due to the friction in the bearings in the rollers.
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Even with a frictionless roller, you're wasting power by squeezing or stretching carpet in the sideways direction while trying to move forward or back. You could perhaps argue that this isn't being wasted "in a mecanum", but it's definitely happening because of features inherent in a mecanum wheel.