Quote:
Originally Posted by RyanCahoon
A couple of things come to mind:
- If the loading cord is above the ground (it's hard to tell from the video), there's a torque moment rocking the robot onto its back wheels. If the wheel that's slipping is in the front, that may be part of the reason why.
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I was going to suggest this also. Try connecting the cord in such a way as to have it running at the same level vertically as the center of the wheels. The main downside to 4wd aside from turning is that it's very sensitive to weight and force distribution when attempting to maintain traction.