FP ok to stall?

[MCahoon]

Getting back to the original design point, of using a motor to spin roller fast, but possibly allowing it to stall.

In one iteration of 'ball magnet" roller development, we used a polycord loop around a grooved hub on the roller running under light/no tension. We provided a tensioner, but also lubricated the polycord with lithium grease. This allowed us to "tune" the slipping of the polycord on the hub, and allowed stalling the roller without stalling the motor, although the motor would still be "loaded". That part worked great, but we found other ball control approaches that worked better than stalling the roller on the ball. It does allow you to spin the roller fast, but allow it to stall and then recover roller speed quickly.

I think some teams also use pool noodle on PVC tube, taking advantage of the slipping of the noodle on the PVC to keep from stalling the motor, while stalling the roller.