I’ve been working on a case design that will hold my 30 amp power supply, and that can be easily customized if I change displays or controller boards. I also wanted to be able to easily replace the rear panel so I can have cut outs for different connectors as I add or remove them. Originally I had really big parts that you could only print on an MPCNC or other large format printer, but I decided to give myself a challenge and redesign it so it can be printed on a 3D printer that has a 6"x6" capacity. The frame will… hopefully… snap together. The panels will be held on with screws. I have to go look for screws and see how available tapered screws are. I may make tapered screws an option. There are two internal beams that have screw holes every half an inch, so mounting plates can be made to attach to it. I haven’t decided which way I want the orientation of my Rambo board to be yet, so I haven’t made it yet. I still need to decide how I am securing the power supply too. Not sure if I want to screw up through the bottom panels, or attach to the internal beams that control boards sit on. I’m leaning towards attaching to the beams.
I am doing all of this in OpenSCAD, so there are some options. The panel thickness can be changed, and you can set a flag whether or not to make the panels large to be but on a CNC, or if they need to be small to 3D print. I do everything in inches, but use scaling functions, so if you change inches_to_mm from 25.4 to just 25, you get a nice even metric version too (though, the power supply would just barely fit then). You can actually just set it to any higher value too and it will generate a bigger box.
I haven’t printed this yet. So far it’s just a concept, but I wanted to share it, and see if anyone who has more experience than me can see some short comings, and suggestions for what might need to be changed.
P.S. I don’t think I like the new way of creating a topic. Am I missing something? How do I see a preview?