This is a basic case for the Rabbit Labs hot-swappable NRF24 module, (two row pins). It has a lip to hold the lid up, and is held closed with three M3x4mm machine screws. The small vent in the top is intended to help with cooling since the chip can get a little warm if it operates for a while, (as opposed to the CC1101 cases I've done).

This one is a little clunky, but a trio of screws in this arrangement works well to keep the case sturdy without making it too large or impacting fit.

I make these for whatever hardware I have on hand at the given moment as far as machine screws go, so I may come out with more versions to fit different hardware.

FlashForge

Adventurer4

No

Yes

0.12mm

30%-100%

Supports are only needed on the bottom of the case, below the loops for the machine screws. Keep the resolution fairly high so the vent prints properly. If I discover issues with that on future prints, I'll make it a little less fine.