I just dropped this on Printables: A FreeCAD based custom size box generator. I’ve been using it for all kinds of stuff. Maybe some of you lot will get some use out of it, too.
https://www.printables.com/model/770701-parametric-simple-custom-box-maker-freecad-generat
Plug in your parameters, make a box with filament hinges – No hardware required. No screws, no nuts, no supports, no glue, no Fusion, no proprietary software, no going cross-eyed looking at OpenSCAD code.
(And yes, the default size in the file will make an M:tG card deck case.)
I have a few parametric projects I posed on my github:
https://github.com/profdc9/FreeCADParametricModels
One of them is called “Memorybox” and is a gift box I made that has parametrically definable dimensions, and the text embossed on it can be changed as well.