Dropper Paint Bottle Holder - 4x4 Version

I came across [Jon Vogel's](https://www.thingiverse.com/jonpvogel) [Dropper Paint Bottle Holder](https://www.thingiverse.com/thing:1034933) design and thought it looked useful, but it was a bit too big to comfortably fit on the print bed of my Makergear M2.

I went ahead and re-designed it briefly to be 4-wide instead of 5-wide, and further broke it down to be printable in separate panels that could be fit together on the edges like a puzzle. Figured it would make assembly and alignment easier, and gluing it together would be that much more straightforward.

The shelves are at a 45 degree angle. I should have probably exported them flat side down, sorry.