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Originally Posted by Andrew Schuetze
As I continue to ponder this drive system, I drift back to a more complex mechanical system that achieves a similar goal. That being a four wheel steerable system. Chainzilla, 118, used such a system last year. The goal being able to drive the robot in any direction so as to have maximum mobility and control. Having all four wheels spinning in the same direction against a push is always valuable in FIRST as defenders are always present and pushing. I see omniwheels and holonomic drives as a less complex system mechanically but it has the disadvantage of likely being easier to push around
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I can't give you all that many specifics about any of the drive trains being discussed, but I can tell you that Chainzilla was fairly easy to push around. I'm not sure how it would fare relative to omni or holonomic drive, but compared to a standard drive-train (tank style) I really doubt a Crab drive (which is what Chainzilla used, if I'm not mistaken in my terminology) would have much of a chance.