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Re: sphere bot
One problem with a sphere is that if the weight is not exactly centered, or not much weight is low, and you are nudged a bit from the side, you could get beached. I have seen little sphere-bots that you can buy in a kit (at radio shack I think). It was kind of like a tank drive, but the wheels conformed to the sphere shape and between the wheels there was a little space below. Unfortunately, while cool, they were cheep, so they didn't drive straight, but they did get I kid that I know in the 6th grade interested in robotics.
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2003 (2002) - 2006 -- Team 294, Beach Cities Robotics
2007 (2006) - Present -- Team 125, NUTRONS
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