D&D Modular Spell Card Box

A normal deck box for something like Magic: The Gathering has a lot of empty space and I was tired of my spell cards bouncing around. This enables smaller sets in the same case, or move the insert to allow a larger set. 

There are grooves at the bottom of the insert slots to allow the cards to pass through, and the insert itself is tapered at the end to allow a snug fit.

Printed at .12mm on Ender 3 Neo to allow for tight tolerances. I used a raft when printing all 3 together due to the print lifting from the bed at the corners, but it's probably not necessary if you have solid bed adhesion. Mine is awaiting replacement at the time of writing.