D20 Kanji Dice Box with Magnetic Lid

myminifactory

While I have seen a few iterations of this basic idea, they all use Arabic or dot symbols for the faces of the 20-sided die. I modeled this from scratch in Blender, using a free Epson kanji font to shape the digits. Since there are a few tiny differences in how Chinese hanzi are stroked vs how Japanese kanji are typically done, I have also included a modified version of the bowl that draws the "8" digit (八) in the Chinese style also. Notes: Neither the bowl nor lid typically require any support material to print cleanly. Slower printing speeds help reduce ringing/ghosting on the flat faces of the dice. On a Prusa MK3S, be careful about overheating the extruder, as slow fine prints can exacerbate the problem and cause a soft jam until the extruder cools. Be careful to avoid excess heat on the bed causing elephant-foot expansion, and that the magnet holes match the expected interior diameter for the magnets you're using. MAGNETS Use common 4mm radius x 2mm neodymium magnets in all ten holes. Be sure to get the N/S orientation correct so that the lid will close without all magnets attracting and no magnets repelling each other. The holes are specially shaped to give good press-fit holding power and should fit the magnet just shy of being flush against the walls. I chose to alternate the orientation such that the lid will only properly hold when the "1" is correctly opposite the "20" face, and there are small matching divots on each rim so that you can easily see the correct rotation to close it correctly and quickly. Keep all things with neodymium magnets away from children and pets who may gnaw on them, and immediately consult a doctor if you suspect a person or pet has swallowed a magnet as they can cause deadly internal injuries.