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My mother has a fascination with Roman Dodecahedra, so I 3D printed her one for Christmas. She hasn't knitted any gloves with them yet. (And may never, but she still likes it and has it sitting on the mantle over the fireplace.)
Printing a Roman dodecahedron seems like an interesting torture test for a 3D printer, plenty of overhangs.
Yeah, the particular model I printed was specifically designed to be easy-ish to print. It's printed in like 32 parts (one for each face and one connector for each vertex) and requires assembly after printing. All to avoid overhangs and such.
But yeah. Raw-dogging it with the supports would be pretty nightmarish. Lol.