This is a folding cribbage board that prints with no supports. The inner compartment is large enough to house a standard deck of cards and pegs underneath. I wanted to design a board that was compact and travelled easily. The magnets help keep it closed, but a rubber band works fine in place of the magnets. It also looks best with a color change at 0.6mm so there's good contrast.
There are two models, one with magnets and one without. Magnets are 8mm x 3mm. I've used N35, so any strength beyond that should be fine (might just want to be careful with a stronger magnet so your pegs don't go flying). To insert the magnets, pause at the last 3 layers (when printing 0.2mm) and drop little bit of glue in each hole. (Don't be like me the first time and find your magnets on your extruder.) Make sure your poles line up and drop them in. I connected two ends together and marked visible sides with sharpie, then made sure the same sides were dropped in. I found I could lay them on top and slide them in without issues.
Problem expressed before with pegs flying: I plan to print flat pegs to keep in this travel board. “When Pegs Fly…”←That's what I should call it.
UPDATE 1: Added a flat peg that can be used in every hole and doesn't touch the bottom.
The author marked this model as their own original creation.