GoPro Hero 3 through 7 battery and MicroSD card holder (untested) with STEP file

UPDATE 8/26/2021 - The current version is 3A. I made some minor changes to help the microSD cards fit better (no changes were made to the battery compartment). The changes have not been tested and since I don't have a GoPro battery anymore (I did have a battery previously that I used to design this). In any case, I won't be testing it further so it will remain a work in progress unless somebody prints it and provides feedback.
I also fixed an error in the model "Hero-7-Battery-holder-3A-SING