This is the UMBs, a modular storage system.
You can print the assemble boxes and the accessories but if you want you can customize-it the way you want it to.
For the prints, i recommend 30% infill and 3 walls and 4 top/bottom.
Support is required in the assembled boxes
All the parametric files are in fusion 360 and can be easily customize.
Please let me know if have any questions or suggestions.
The author hasn't provided the model origin yet.