Just use some thought before you apply the paint! I've owned KMG grinders for years, and the mistake I made when I painted my first one was not realizing the tolerances at most "contact" points..... I disassembled it, and once I had painted everything an tried to reassemble, I found that the only way I could get parts such as the idler arm back in place was to blast the paint I'd just applied off.
After that experience I leave the machines fully assembled, and tape off areas not to be painted/coated. Works much better, with far less frustration.
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