To get the lab power supply out of the way when not in use, I needed a box to cover it up in a dusty environment at the workshop.

This model was designed specifically for the Velleman LABPS3003SM power supply, but it actually got a bit too large. An improvement would be to compact it as much as possible and rotate the Multiboard Multibin Shell backside 90 degrees, to be able to mount it horizontally on the wall.

Because of the size of this box, it's hard to arrange it on a Prusa MK4. I was just able to print it in the direction used in the two 3mf files attached. The lid had to be printed in a direction that made it warp a bit on the edge. Maybe it wouldn't warp without support on the edge, and instead use a larger brim?

To assemble use the same hinge pins as Prusa Enclosure uses on the doors: Pin 3x20 - 12 pcs set | Original Prusa 3D printers directly from Josef Prusa

I used 4 pieces of bolt locked Multipoints: Bolt-Locked Insert - Multipoint - 3D model by Multiboard on Thangs 

They require 4 pieces of T bolts: 9 mm Small Thread, Flat Head, T-Bolt - 3D model by Multiboard on Thangs

And I used them with 2 pieces of heavy weight bearing snaps at the top: Heavy Weight-Bearing Hook Snap - 3D model by Multiboard on Thangs and 2 pieces of weight bearing snaps at the bottom: Moderate Weight-Bearing Snap - 3D model by Multiboard on Thangs