I’m looking at the back of my Glowforge Pro and right above where the power switch is and the power cord plugs in, is a round metal ring with a black cylinder inside of it. the black cylinder has a piece of wire on it.
What is this thing? A Fues? I looked in the user’s manual but didn’t see any description of what this is.
Regarding the linked post above, the interlock connector is wired directly to the main control board and in some instances, the error posted there has occurred. It was more than certainly a break in the wiring or a disconnection to the board, but neither would be serviceable by the average owner. Out of over 100,000 machines, this has been reported here only a handful of times.