[Frenchie]

If you're robot is trying to brute turn a six wheel traction drive... you're going to be killing your motors in no time!

With a six wheel drive, the common thing to do is to lower the central wheel by a tiny amount (1/8" for example) in order for the robot to turn with more ease. Other solutions involve switching some of the wheels to omnis or casters (the advantage of omni there is that you can power them to push forward and not completely lose the 6WD traction advantage). What I've also seen done is powered caster system that drops down every time the robot tries to turn.

If you have taken provision to make your robot turn easily, then it would seem to be an electrical problem (the "drive forward" code is straightforward enough that it is unlikely that there are any mistakes there). Recheck all PMW connections and make a continuity check with the frame to find a possible leak. As said, you should also make sure you have the right breakers in!

Good luck!

Francois