Quote:
Originally Posted by Hitchhiker 42
Looking at the picture made it clearer. I was convinced that, at least with a diagonal of 45 degrees it'd be fine. However, it seems even that would be a problem. Omniwheels, like others suggested, might be the way to go.
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Grab a basketball and a small wheel (or any ball and a wheel with a smaller diameter than the ball). Try rotating the ball at an angle 45 to the wheel with the wheel perpendicular to the balls diameter.
As long as the balls rotation speed is sqrt(2)*(wheel-diameter)/(ball-diameter) times the wheels rotation speed the only "scrub" is 100% pivotal. I didn't believe this until I tried it since it is extremely hard to visualize.
I might change the traction wheels to omnis just because of the strong pivotal force.