Case for "4000 W" dimmer module

This is a case for a Chinese "4000 W" dimmer module, which I bought from Aliexpress for around 3.50 €. Because these Modules have severe issues with lacking isolation distances, I highly recommend a proper grounding for its metal case. This grounding is NOT optional, even if you are using my casing because of the metal shaft reaching through the case.

You will need four M3x30 DIN 7985 screws (or similar) to close the case and two M3x6 DIN 7985 screws (or similar) to fix the module to the case. You will also need two cable glands with a M20x1.5 thread which screw directly into the case.

The Fusion360 design file is attached and therefore you are able to make changes as you like.