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Originally Posted by Al Skierkiewicz
Joe,
I think if you watched closely, the robot front tires are actually being pushed into the step edge. The resulting force combined with the turning ability of the tire results in the tire climbing the edge. The robot front wheels would climb even if they weren't powered. (Think of a bike going up a curb.) There is just more point friction on the front tires. Lowering the air pressure in the rear tires should help quite a bit. Some teams have added some friction enhancers, i.e. teeth or grippers, to the tires. These grip the edge during climbing and do not allow the tires to slip on the platform edge. I have seen grippers mounted right on the tire and on a wheel attached to the tire.
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Thanks for all the replies from everybody.
You Guys are the best.
Joe P