Robo 3D R1+Plus Molex Print Bed Mod

I wanted a way to be able to disconnect my printer's bed heater without the usual amount of disassembly. Eventually I settled on a Molex Mini Fit Jr dual row connector, so I created this adapter to mount the plug on the back of the printer. It requires cutting out one piece of the vent grate to make room. I accomplished this with a needle file and it was not much trouble at all. Through a few iterations of the adapter design, however, I still couldn't reliably get the plug to stay in place when