[RyanCahoon]

Originally Posted by kmcclary

IMHO, you should always hard mount the mecanum wheels to the frame, and never have them dangling on the end of a pivot arm.

Definitely good points to raise, but I imagine you would see similar kinds of (and perhaps even greater in magnitude) stresses by putting the traction wheels on the end of the pivot arm and then being pushed sideways by a robot playing defense against you. Either way, you definitely want your frame to be pretty tough.

Empirically, 488 has experience making pivoting suspensions. Their mecanum prototype utilizing tennis balls is rather infamous among the Western WA teams.