3/8" Marble for the 3D Marble Maze

thingiverse

I designed a 3D Marble Maze and needed a marble to go with it, so I created one from scratch. I've included two versions - one that is just a simple marble, the other designed for printing without any supports. The no-support version is split in half lengthwise with flat sides facing down, and a small pin to help align the two halves perfectly. I've also included the OpenSCAD file I used to generate both models. Print Settings: Printer: Original Prusa i3 MK2 Rafts: No Rafts Needed Supports: Not Applicable Resolution: 0.1mm Resolution Achieved Infill: 90% Infill Rate Recommended Notes: I left supports at 'Not Applicable', because neither 'Yes' nor 'No' is correct - it actually matters for the design. The full sphere requires supports, while the cut-in-half version does not need any. I recommend a high infill rate to give the marble some weight and stability. I used the variable layer height function in Slic3r Prusa Edition to print my marble, with 0.3mm layers for the pin and lower parts of the cut-in-half marble, gradually reducing to 0.07mm layers as it reaches the upper parts of the marble to achieve a smooth finish all around.