AAA 6 battery case

AAA 6 battery case:
- half open to see what is inside,
- with unscrewable lid, which can by also attachetd on bottom to left case open.

Version 3 of lid have hole, which will force additional walls in the slicer, which should increase torsional strength. The thread is reduced by -0.1mm on the top, bottom and outer walls.

Version 2 of lid have small hole, which will force additional walls in the slicer, which should increase torsional strength. Of course, you can use a stronger material than PLA and increase the number of walls and density of infill.