12v Power Supply Cover

I liked the approach of the cover made by beekeeper but I wanted to make a couple of changes, and I'm not a SketchUp person, so I remodelled in OpenSCAD.
In my design the switch is on the front face, which means you can print without supports.
At first I had the slot the same width as the connectors, but I managed to get a very small switch which allowed me to feed the mains cable through a hole and keep all the mains wiring hidden inside.