Yet another design for Codex Naturalis insert, fits cards with 43x65mm sleeves (inner dimensions of card boxes are 44x66 mm). I found that in several designs, there is not enough vertical space for sleeved cards, so here I dedicated as much space as possible. The cards sit in their own boxes that can be removed from the insert and possibly used while playing, if you find your card decks are too unstable on their own. While in the insert, none of the components should be able to slide around while the game's box is moved, as the insert sits practically flush with the lid.

I took inspiration from insert designed by Petit_Malin, [https://www.thingiverse.com/thing:4712812/comments](https://www.thingiverse.com/thing:4712812/comments) . His design fits non-sleeved cards - if that's your case, definitely check out his work.

Printing instructions:
Print 1x codex_insert and 2x codex_box
The walls are often 1mm thick, i.e. you might get good results with 0.5 mm nozzle, I used 0.4 mm nozzle and it turned out just fine.