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Originally Posted by Christian D
Ask WildStang, they had an awesome robot last year with the crab drive train,
-C
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Thank You!
We use modifications of crab drive from year to year as appropriate. In the past (2003) two wheels had drills and two had FPs. The gearing ws different to provide similar wheel RPM and about 8 Ft/Sec speeds. Come look at our robot in the pits at nationals and bring a camera. Anyone there will be able to give an explanation and let you hold one of the spares for investigation. The module bolts on to the robot base and is removable as a single piece. It contains the motor, wheel, all gearing and at least one will have rotation sensors built on. The unit fits into a virtual cylinder 6" diameter and about 12" high and is driven from above by a Globe and chain. The module is indepenent of the steering so it can be changed out in less than a minute.