This is the same dice case you'd find at your local D&D store, stacked high on a shelf storing sets of dice, usually priced at 9.99. You still have to pay for the dice (unless you have a resin printer), but here's the case, for free! Try it for yourself, print this thing, store your dice in it, let me know what you think! If any adjustments are needed, by all means let me know!

This is according to the exact metric measurements from a real dice case. The lid and the container may or may not fit together depending on your printer.

After getting a new set of die, I just measured the case that the dice came in.