[mman1506]

Originally Posted by Cothron Theiss

About bigger wheels providing more traction: the diameter of the wheel has no noticeable effect on traction, but the width absolutely does. So doubling up on traction wheels to create 2" wide wheels will theoretically double your traction. Will you actually get twice the pushing power? I doubt it. But your traction will increase significantly.

Doubling your wheels surface area does not double your traction theoretical or not. The only way to increase traction is to increase the weight of your robot or raise COF of your wheels to the carpet. I suggest reading this document http://www.simbotics.org/files/pdf/drivetraindesign.pdf