Remix of Whity's Parametric Rugged Box (Printables).
You need 6 M3x30 screws. I used Allen set screws for a better look.
Best to be printed with a multi colour printer.
The .3mf file contains all objects and the pre-colored lid.
I recommend 3 walls and brim to prevent warping, no support.
I originally posted this model at Printables.