Functional printable D20

D20 with debossed numbering on the sides and rounded corners, designed to be functional when printed. The geometry is internally hollow with uniform face thickness. This gives all faces uniform mass, unlike what a slicer would do making all perimeters unform width in the slice-plane regardless of face angle. It also gives a really satisfying, highly chaotic spin and bounce, by concentrating all the mass away from the center.

The model comes presupported to print on a corner, which is important to avoid having two odd faces at the top and bottom. This leaves the lowest 5 faces at a sharp overhang. You need to have really strong part cooling, or else go very slow, to get a good surface finish here, but if you do that, they come out beautiful.

Recommended print settings are 0.10-0.12 mm layer height, 0.5-0.6 mm line width, and 4 perimeters (to ensure the print is entirely perimeters, no infill).

The debossed numbering is designd to be over-filled with nail polish, then wiped with acetone after it dries to remove everything from the surface leaving behind only the numbers. Obviously this only works on materials the acetone will not damage. The same could probably be achieved with acrylic paints by wiping with a wet paper towel while the paint is still wet.