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Unread 09-01-2003, 08:50
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Matt Leese Matt Leese is offline
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Quote:
Originally posted by The wheelman
First nothing has zero friction, second diffrent hardness of rubber comes diffrent amounts of slippage, with the hard wheelchair wheels on the top of the HDPE they slide like mad, but with a softer rubber and alot of surface area, I belive that you could some how lift your bot on it and never be pushed around, ever. Thats the type of bot that is going to win king of the hill
Traction has about zero to do with surface area. This is even more true when on a completely flat and smooth surface. Remember, that traction is gained by friction. And, the formula for friction is F=uN where u is the frictional constant which is determined by the materials involved and N is the normal force. There's nothing in there about surface area. You do not need a lot of surface area to have good traction. In fact, it may actually be harmful (see one of the whitepapers about it).

Matt
 


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