How important is it to CUT your comm, or better yet buy a comm cut'n machine? I mean, I took one of my motors apart last week and sprayed the inside of the can, bushings, armature, etc.., but when it came to my comm, I said "What the hell, I'm gonna try something...". So I grabbed a piece of scotch brite (very fine grit) pad and went to work. In about 5-10 secs, sprayed it off with motor spray and the comm looked as good as any machine job. So why is CUTTING the comm necessary?
Just a simple question, from a simple mind, wanting a simple answer