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Unread 26-11-2012, 13:16
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Brandon Holley Brandon Holley is offline
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Re: Be afraid... Be VERY Afraid

Quote:
Originally Posted by bhumudar View Post
1. You are correct in that the first place that you lose friction is the only one that matters, but since there are multiple contact points, each one adds to the total friction available. Lets suppose you see an incoming robot front the right of our robot, we would turn the wheels so that they face front to back (perpendicular to the incoming force).
I think the way you are wording this statement is misleading. Siri's statement that you reiterated is very important- whatever slips first is the limiting factor.

I believe I understand what you are saying, that by moving the wheels perpendicular to the incoming force, you are using the traction of the ball and floor as your traction limit as opposed to the traction limit on the wheels against the ball. What is hanging me up is the part where you say "each one adds to the total friction available". This is not a summation, your maximum theoretical resistance to pushing (or traction) will be limited by the ball's traction with the floor.

-Brando
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