Small Mechanical Lock for "Prusa Core One Side Storage"

The mod adds somme material to the original design to make sure you can screw in it. Print it like on the Slicer image; Glue the smaller part to your box as in FreeCAD image (easier with PLA...); Drill a hole gently, tapper; Screw the larger part and you're good to go. Many thanks to https://www.printables.com/@Prusaguy for sharing its design files, that helped a lot. N.B. : glued 3x small wedges under the door to ensure it close properly and well aligned. Now fit is perfect and it did not move (nor opened unwillingly) during last two months.