Quote:
Originally Posted by samir13k
if they fall within the list of allowable parts (all tetrix wheels or made out of the allowed materials) then you should not have a problem
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I believe this advice is intended for the minibot, while the question (I assume) refers to the robot, or hostbot, or whatever the big machine is called.
Casters are certainly legal, but you may wish to consider omniwheels instead. I'm sure if you search CD (or google) for discussions of casters and omniwheels you will find that omnis are often a preferred solution for a number of very good reasons.
Jason
P.S. If you are doing a four wheeled robot with two wheel drive, remember to keep as much weight as possible over the two driven wheels.