Hmmm anyone ever think of casting their own wheels using poly urethane?? People do cast their own wheels for sumo robots using this material and it displays great traction. I just received an article on this. Apparently wheel hardness is measured on the Shore A hardness rating. This rating can rage from 10 to 80 where 80 is the hardness of a bowling ball and 10 is soft, gummy material. Though this material has only half the traction of the gum rubber. People also coat the wheels with silicone to improve the wheel's traction. Silicone can be bought at automotive stores. One last note. Generally high traction wheels tends to loose traction as it picks up dust so make sure that you clean it off with baby wipes.
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Last year we used 4 of the skyway 9x2 beadloks like in the kit. We drilled them out to save weight and we turned them down to 8.5 in di to have a flat tread profile. While the traction was surprisingly good, the wear characteristics were not.
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Yeah modifying those tires in any way was a bad idea. My friend said that the synthetic material was not really designed to be modified. We lost our treads in the first run of our match.
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If either a public officer or any one else saw a person attempting to cross a bridge which had been ascertained to be unsafe, and there were no time to warn him of his danger, they might seize him and turn him back without any real infringement of his liberty; for liberty consists in doing what one desires, and he does not desire to fall into the river. -Mill
Last edited by Adam Y. : 25-11-2003 at 10:22.
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