Stackable snap-fit Box

Remix from Mutsuki's design scaled down to 77% to accomodate for 3mm MDF instead of 4mm ply. Went to 77% because the first tests with 75% were a little to tight in the snap fit joints.

**Material**
* 3mm MDF

** License **
Creative Commons Attribution-NonCommercial-ShareAlike (CC BY-NC-SA 3.0)
Would love to make this more permissive, but that's just what Musuki's design is licensed as.

**ToDo**
* Add dxf files for separators