I couldn't find exactly what I was looking for so I made this case to hold my GoPro, 2 batteries, and 2 microSD cards. This is based off of Whity's design and used 6 M3x20 screws. There is also space for 8-10 mm or foam on the lid and 3mm of foam to cover all 3 screens.
Used 80% gyroid infill seems to hold up great so far. Printed in PLA Pro
The author remixed this model.
added space for 2 batteries, holds 2 micro SD cards, added space to place foam to protect the screens.