Summary

This deck box is inspired by boxes like the Ultimate Guard Flip 'n' Tray or the docsmagic.de Premium Magnetic Tray Box. Its main drawer is big enough to fit at least a fourty card main deck, a 15 card extra and side deck as well as some tokens. At the top is a second drawer for dice, coins or other smaller things.

The dividers can be printed and used to separate parts of the deck like the side deck from the rest.

Both drawers are held in place with four 1.6mm thick magnets with 8mm in diameter. Those should be glued in after printing.
The door uses a hinge mechanism with some raw 1.75mm filament in the middle. It stays closed due to a small bump on it self and the outer shell.

Printing

I would suggest printing the door standing up (see screenshot). I turned on the supports and added a brim to improve stability and adhesion during print.

The rest of the parts can be printed without any supports or brims with the openings facing up.

Post-Printing

Magnets

Use some super glue to glue the magnets to the inside of the outer shell and the backs of the two drawers.

Hinge

To mount the hinge align the outer shell and the door and insert a piece of filament. Then flatten the ends using the side of a hot knife or something similar. That way, the filament should stay in place.

You can find a good tutorial on how to do this here.