Summary Designed a 3D puzzle, that when assembled produces a 6 sided die. The final cube is 28mmx28mmx28mm. The inside is a 14mmx14mmx14mm hollow cube. Print Settings Printer Brand: Wanhao Printer: Wanhao Duplicator i3 V2 Rafts: No Supports: No Resolution: .16mm Infill: 10% Notes: I printed mine on a Maker Select V2 with 1.2mm walls at 60mm/s. Post-Printing I'd recommend sanding down the sides to get a good fit. Frequent reassembly make the pieces easier to take apart and put together. It should be a tight enough fit to hold together without glue. Painting the numbers or printing each face in a different color would be helpful if using it as a functional die. Assembled cube Assembled cube with numbers in black How I Designed This I designed it on TinkerCAD. Included are individual stl files as well as an stl file with all of the models included. If you have suggestions or comments please let me know so I can improve the design.