Spraybooth Corner Cubes

My friend commissioned me to design some corner cube clamps that could be used to make a spray booth out of readily available cheap sheet material, only requiring that you cut a small notch at the corner. These cubes use a double ball joint on the screw so they'll self adjust to whatever thickness of stock you want to use, up to ¼"/6.3mm. Tiles are included as well in case whatever material you use for the bottom sags at all, though honestly I've generally not found I need them, but they're there as an option. Also included is a Gridfinity storage bin (using the Gridfinity Refined standard by grizzie17) to store everything neatly. The cubes, tiles, and bin can all be printed at a normal 0.2mm profile with a 0.4mm nozzle, but for best results I'd recommend printing the thumbscrews and bottom screws at 0.12 or 0.16mm profile, as I have them plated in my 3mf. If using my 3mf, note that you only need to print one of the two plates, depending on which kind of screw you w