Roll-up Hex Dice Box without hinges!

This is a simple rolling dice box that rolls into a compact hex and locks with two 6x3mm magnets for the latch.

There's no mechanical hinge, just 0.4mm of filament which will more than do the job. It's really only bending 30 degrees so wear should be minimal. Tuning the first layer will be important. 

One box will hold a complete set of D&D dice - a d4, d6, d8, two d10's, a d12 and d20. The d4 and d8 will pack in the same compartment. Chances are you may be able to fit more depending on the size of the die.

I've been using PLA and it's great so far, though PETG will offer more flexibility. Just avoid stiff or brittle PLAs like some Overture or old filaments.  

Print as in the STL at either 0.15 or 0.3mm layers. It is critical to set the fill angle along the length of the case for maximum strength, as in the pic.

There's a thin layer where the magnet goes for the sake of overhang printing. Just use an X-acto to carve and clean the hole out.

The magnets are press-fit and in the end the latch should be pretty well flush against the box surface. There's tolerance included in the fitted pieces but you may have to shave some more down to make it fit. Use CA glue to attach it.

There's a 2-part version for Prusa Minis and smaller beds. CA-glue the hinge to the second piece and you're good to go.

Update: 31-Mar-2023: I've included set B with a separate hinge altogether. This will let you print the hinge a more flexible filament like PETG or TPU while printing the case in PLA.