This is a simple clip-on mount that replaces the base of  Yi brand indoor WiFi camera and allows it to clip to a 20x20. I use these inexpensive cameras to monitor my prints remotely along with a smart switch on each printer so I can turn them off remotely should a print fail.

I printed using PETG and 30% infill. I oriented the model so only the small lip that clips around the 2020 needed a support. I used support blockers on the screw holes and nut recess as they're not needed for my printers. The required mounting screw is an M4 x 18mm and associated M4 nut.