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Check out WildStang Team 111's drive train.
They used 4 motors: 2 drills and 2 Fisher Price, with one motor for each wheel. The wheels could be rotated to any angle.
They didn't have a gear shift but swooped around quite quickly in any direction, at about 7 feet per sec as I recall one of their members saying.
Our drive train used the 2 black motors, and we shifted by lowering larger wheels. In high gear, we could theoretically go as fast as 111, but actually we were slower to get moving and to turn. 4 motors give you faster acceleration, which is important since you are often changing direction.
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FIRST Team 980, The ThunderBots
2002: S. California Rookie All Stars
2004: S. California: Regional Champion,
Championship Event: Galileo 2nd seed,
IRI: Competition Winner, Cal Games: Competition Winner
2005: Arizona: 1st seed
Silicon Valley: Regional Champion (Thanks Teams 254 and 22)
S. California: Regional Runners Up (Thanks Teams 22 and 968)
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