The original upload from pear3d.ch did not close properly for me, so I modified and added some further touches like MK3S style cable covers, extra space within the box and fixing the cover with 2 additional M3 bolts.
This case is made as a part of the MINI Bear Frame modification. For further details check: https://www.printables.com/model/417710-prusa-mini-bear-mod-z10
Update 09/04/2023: Removed need for supports for the M3 square nut pockets.
Update 23/04/2023: Increasing the case thickness on all sides made it harder to attached the micro USB cable. Added a cutout that reduced the thickness in the connector area.
The author remixed this model.