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Originally Posted by KenWittlief
all castors can pivot or roll in any direction. Thats what a castor is.
If it cant go sideways, its called a wheel! [ºiº]
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This may be true, but a ball caster doesn't have to pivot before it can roll (something we found out the hard way when our autonomous kept just missing the mark in 2004). It's just one less thing to have to worry about in programming; we've had enough to worry about this year!