pic: off season chassis

[artdutra04]

Originally Posted by PAR_WIG1350

I measured the wheels and the omni wheel seems to bee about 6/7x the size of the outer wheels. Good observation.

The original photo showed the same size sprockets for the chain runs between the omni wheels and the traction wheels. If this was unchanged, and the wheel diameters of the omni wheels is significantly different (I'm guessing the outer wheels are 8" AM wheels and the omni wheels are 6"), this could be adding another variable into this equation.

If this is the case, the surface velocity of the traction wheels will be faster than the omni wheel, so the omni wheel will experience longitudinal scrubbing (collinear with the omni wheel roller shafts) which may yield weird results when driving or cloud the the expected results of what would happen with equal size OR equal surface velocity wheels.