Power Cap Remix

Extended the original with various options, and to fit my power supply (60A 5V).

Options include:
* hole for a power switch in the top just above mains supply
* tabs to fit slots in the supply sides for extra holding power
* split case snap-fit design so you don't have to disconnect to add/remove this from your supply
* Minimalistic rear piece to use less plastic and print quicker by not covering the top and back entirely (the purpose of the rear piece is just to ensure the supply is raised equally front and back off the table/surface it rests on)

You should measure your supply to ensure these details fit appropriately.

Seems the online customizer does not support all features - use OpenSCAD or any equivalent