I made this box as a test for whether the larger box I designed will print well on your printer. Same tolerances are used: .4mm for the MK3S printbed and .3mm for the MINI sized. If you can print this, you should be able to print the larger model.
Update: I removed bottom star due to bed adhesion problems. Should make printing more successful.
Update: Shorter latch to make the closure tighter
Default settings should work just fine (.2 layer height).
The author hasn't provided the model origin yet.