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Originally Posted by ND4SPDLSC
My team wants to go with casters and 2 wheel drive. I am one of the few on the team who believe 4 wheel drive or maybe even 6 wheel drive is the best way to go. Has anyone tried using casters with a skid plate in front of the casters and the weight focused over the drive wheels to climb the stairs and the 6" platform? I really don't think it will work, but I'm in the minority and I don't want to be the nag... Any help would be greatly appreciated!! Is there any team near Manchester, CT that would be willing to demonstrate a robot with large casters trying to climb the 6" platform?
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If there is one piece of advice that i can give, it would be STAY AWAY FROM CASTERS. They thould be avoided at all costs. The problem(besides making it up the 6") is that they wreck menuverability. They are fine for linear motion, but once you turn, the castors must re-align themselves, throwing the robot completely off course as they do so. Instead of Casters, you would be MUCH better off with a skid plate alone. An even beter option would be a skid plate and either a ball castor(picture giant mouse ball) or an omniwheel. The ball castor would probably be better, unless you plan on powering the omniwheel.