Here you have a portable retro console based in ATMega328p (arduino uno IC), this is the complete shell,all screws are M2, only 2 screws M1 for LiPo charger. Was designed in FreeCAD, you can see the instructables guide or github proyect here: gitHub: https://github.com/JVPEnigneering/Retro-GameDuino- Instructables Project guide: https://www.instructables.com/id/RetroDuino/