This is for the 3018 CNC from VEVOR with the offline controller that has the acrylic backing behind the controllers PCB. I mounted this on the side of the machine so that the cable does not get in the way but is also easy enough to remove to be able to use it.

When installing, I used the M4 t-nut from https://www.thingiverse.com/thing:2529876 to secure the mounting plate to the frame as well as some short M4 bolts. The mount has a little clearance for printer tolerance so the board has about a 1mm gap around all edges so that the board isn't too tight and avoid breaking it.