Light switch Base/cover

Intro:This is for the light switch I have in my home. This is my first CAD/3Dprinting project that is not based on other people's file, so it's kind of a shitty design, sorry for that, I'll try to make it better if anyone actually need this. I made this to cover up an unused “plugin hole”… I don't know the proper name of it. Like this:(The Hanger part came with the Dyson hair dryer, download the file in STL/CAD download)And then I thought that since I already have the structure, why don't I keep trying to remake the whole thingPrinting:1.There's four circles on the top surface of the lid, those are marking, you can use it to locate your custom pin there.2.Check the slicing result before printing, it problematic.3.There's a completely floating wall loop on the second layer of the lid, I used an 1mm brim to support it and kept the brim on it.4.Check if your filament color fit your wall(Mine doesn't!)5.I uploaded some STL/FreeCAD files for Triple, mono swit