[Chris Hapstack]

Originally Posted by IronicDeadBird

Oof I'd be careful with that I've seen a few magnets explode when they collide with something too hard. It is quite a spectacle unless said magnets are expensive rare earth magnets you just recently purchased.

Shattering the magnets was definitely a concern. The purple side guards shown in the picture (actually made out of polycarb) extend 1/16" above the faces of the magnets, so the magnets themselves will never actually contact the bar.