The Cantilever box is compatible with SBox for MINI - stackable toolbox system and is intended for printing on the Prusa MINI size 3D printer.
The bigger size for Original Prusa i3 MK2/3 is available - SBox for MK2/3/4 - stackable toolbox system and is intended for printing on the Prusa MK4 size 3D printer.
list of non-printed parts
All parts of SBox - stackable toolbox system
The author remixed this model.
I combined the mechanisms of these two models together.