This is a no frills power supply cover for 12V 30A 360W power supplies, which is flush with the power supply along the widest surfaces. As such if the power supply is set down it will lay flat. It also looks nice and clean if the power supply is standing vertically. No extra holes or anything for things to fall inside of it either.
I measured my PSU to be 113 mm x 50 mm, and this .stl is a perfect fit for that. Also the little slot cutouts are 18 mm long. So maybe double check yours with some calipers.
I wanted a power cover like this to stand my power supply up vertically and so the on/off switch could be on the "top" in this orientation. I have my Anet A8 tucked in a corner at home, and I wanted the switch to be easily accessible. I did have to extend my power cables and run them over the top of the printer to have it this way. Pictures for reference.
This cover mounts to the power supply with 3x M4 4 mm to 8 mm screws.
There's some extra material around the screw holes for the plug mount which can be threaded in to with m4 screws as well. I used the extra 8mm M4 screws from my Anet A8.
I printed this at 203 degrees C for better layer adhesion, YMMV
Perfect fit on my printer, but as always, .scad file provided for personal tweaking
**This cover won't work well with my Anet A8 360W power supply mount, as I have flipped the power supply upside down (compared to the convention around here it seems). I might make a new mount for this orientation, but I like how it stands vertically on its own right now and how it can just be stood up flush against the frame of the Anet A8.