[EricH]

Originally Posted by kingsley.osei

THanks To you all for the help, We built the robot in a square using 31in wide bu 32 inch long. Our drive train uses four motors, three wheels on each side. We were thinking about going with the OMNIWHEELS. What is special about them?

Hold up a minute. If your robot is 31" x 32", you will need to have some method of losing 3" or so for transport.

As far as omniwheels, they allow very easy sideways movement. You REALLY want traction wheels of some form, though omniwheels may be useful on the corners IFF the center wheel is not dropped.