Modular Stackers for Full Size Cases

Friction fitting. These should be able to hold about 5 layers, I wouldn't push it much passed that. You can extrude them more if you want of course, the current thickness of 1 1/2" is the minimum thickness that I recommend. When planning your assembly I strongly suggest keeping the weight evenly distributed. Last image is a legend for which module was assigned which number in the files.

My tests were done using PLA+ If this design is too flimsy with your filament of choice, let me know and I'll make a version of each part with thicker beams. If you do have problems with rigidity, please tell me the module configuration you're trying, and what material you're printing with.