This case fits a Raspberry Pi 4* and HyperPixel 4.0 square TFT display, it doesn't require any other hardware other than the ones provided by Pimoroni. Just fit everything in the case and the secure it using the 4 standoffs screws at the back.

No supports needed, yes all the bridge sections are straight and will print in the air, have a little faith in your printer. If some of the first bridged layer droop a bit, just remove after the print, but it wont affect the functionality of the case.

*it might work with other form factors, although not tested, let me know if you do fit other raspberries.

note: The UGREEN steel disk at the back is just to mount it anywhere using magnets (like a ugreen magnetic car mount).