This is a base for an ATX power supply for a printrbot simple metal with heated bed. It cleans up the wiring by keeping the ATX wires internal to a case. My first version of this (Thing #512601) used a smaller power supply and was build-able in two pieces. This version is a bit larger and should be able to fit most any ATX power supply, however it has to be printed in 4 pieces. Like my first version, the printrbot intentionally hangs over the front edge in order to give access to the reset button.Print the front left, front right, back left and back right pieces. The front left and front right pieces snap together. The back left and back right pieces snap together. (Actually, it works better if you slide them together rather than snap them together) The front and back assemblies are then held together with screws. Solidworks files included for those that want to modify it.