The 2 cases are easy to print and are already designed for a single Injection tool , top and bottomm the same. The PCB file is included 1.6mm The front and back can be 2 mmm plastic or aluminium or a PCB file ( we use a black PCB with white writting ) Strong and well vented top and bottom for heat disapationTo put together 4 mm screws and brass nut insets from RS We have used thousands, and often the top was in clear for LED ligthing If you need another size just contact me @ $100 per size.