Summary Holds wrenches and screwdrivers that came with the Alunar Prusa i3 (A8). Holes are too snug. Recommend sizing them up by 0.1-0.2 mm. I'll try to get to it soon. Matches my frame-mounted spool holder: http://www.thingiverse.com/thing:1752018 Print Settings Printer: Alunar Prusa i3 (A8) Rafts: No Supports: No Resolution: Cura 2.1 Default - Low Quality Infill: 10% Notes: 205 C to reduce stringing in the holes.