Covers for in-wall electric boxes

We had some open electric boxes after renovating the house. I generated some additional sizes for you.

The “dome part” of the cover clamps to a screw, similar to a type of covers you can buy. The screw needs to be coutersunk or flat head with a head diameter of ~ 8 mm.

I think this is a particularly expedient part to print instead of buying. For what they are, such covers are quite expensive and I imagine a lot of the costs comes from packaging, storage, and transportation –you don't have that with printing at home.

I printed mine in white PLA but PETG would be better.

Update 18.08.25: Outer diameter of dome increased to 14 mm. This should prevent the dome segments to snap off.