The cam-latch closure on my original rugged box is still the toughest 3D printed box closure of all, but I know snap closures are convenient too. I made this extra tough snap closure, which will not break because it doesn't rely on layer adhesion. Even if you do somehow manage to break it, the catch can be replaced with a single screw.
Features:
If you like it, please hit like!
Requires 8x M3 x 20mm screws.
Tested in PLA and PETG, should work with any rigid filament.
Assembly Guide Video:
Original Rugged Box:
https://www.prusaprinters.org/prints/49414-zx82net-customizable-rugged-waterproof-box
Check you my other designs including 3D Printed Hi-fi Speakers:
https://www.thingiverse.com/thing:4762555
The author hasn't provided the model origin yet.