4-wheel drive trouble

[Al Skierkiewicz]

Originally Posted by Joe

We're considering solutions, the faster solution to tell the truth, 'cos we have to deliver our robot thuesday (because of the carnival holidays)

Thanks all.

Joe,
A technique we used last year was to have a foot descend pnuematically when we wanted to turn. The foot had a plastic or delrin surface that had little friction with the carpet. This would lift one set of wheels off the ground and let the other two do the driving. The side friction is not only killing your turns but your current skyrockets during the manuever as well. That shortens your running time and drags down everything else on the robot that runs off the battery. In the past (pre-backup battery) this would have reset the robot controller.