Quote:
Originally Posted by Tottanka
And what do u guys think about this kind of system?
Ever seen it? (sorry for the lame illustration but i think youll get it right) =]

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That's a basic holonomic drive with wheels mounted at 90º. A number of FIRST teams have used it, including 116 (2005), 1541 (2006), and 422 (2007).
Also, swerves do not HAVE to have each wheel powered individually. A "co-axial swerve" has all 4 wheels powered together, then steered in pairs.