d20 Box

Magnetic closure d20 box to store your goodies.

It neatly fits 3mm diameter x 2mm height cylinder magnets.

I've attached the Fusion360 file if you want to tweak the size or font. Change the size by modifying the "MajorRadius" parameter, which defines the radius of a sphere that circumscribes the icosahedron. Change "MagnetDiameter" and "MagnetDepth" for the dimensions of your magnets - I found I need about 0.1 mm extra on the diameter to make them fit.

The font I used doesn't extrude the insides of the 9, so I flipped a 6 for the 9 and 19 faces. You'll have to manually adjust the intra-letter spacing if you change the font.
Setting the "MajorRadius" to 1.8 inches is the max that would fit on the print bed of my Photon Mono 4k. You may have to rotate it around the z-axis by 18 degrees to fit the most possible in your print bed.

I tried to find a way to print without supports, but mostly failed. I tried printing with the magnets opening against the build plate, but the magne