Mounting Bezel for K40 Laser Cutter Power Outlets

thingiverse

The power outlets on my K40 laser cutter were wired up all wrong: the hot connections and neutral ones were swapped around, and the ground wasn't even connected at all! I pulled out the outlets to fix this problem, but they don't fit very well in the back panel, and were being held in place by some super-strong hot glue. So I came up with a plan to design this mounting bracket that would hold them firmly in place for good. You'll have to drill some holes in the cabinet for sheet-metal screws so you can mount the bezels properly. The inner surface of the power outlet mounting flanges has these little plastic bumps, which you should cut off. They stop the mounting flanges from lying right on top of the panel. One important thing: I discovered that the metal cabinet of my K40 wasn't grounded! Theoretically it should have been grounded by the power supply being bolted to it, but the paint was too thick, and prevented the PS mounting screws from making electrical contact. I fixed this issue by replacing that useless grounding terminal with a nut and bolt, and scraped off the paint on the inside of the cabinet so the grounding wire could make good contact with the cabinet.