How to turn better with four wheel?

[kjohnson]

Originally Posted by SuperNerd256

Is there a way to turn better without adding an extra wheel on a wide chassis, or without changing to omni wheels? We would be doing this with 4 wheels, not 8, however.

We have had luck using a double set of rubber wheels at the front, and single slick wheels (like from Lunacy in 2009) on the back. This gives you good grip up front but lets the back end of the robot swing around easily. Worked well for us in 2007 and 2011 for positioning to hang tubes, but may not be what you're looking for.

http://www.chiefdelphi.com/media/photos/27552