Summary A spool holder I made using Sketchup. Print Settings Printer Brand: RepRap Printer: Prusa i3 Rafts: No Supports: No Resolution: .2 Infill: 20 Notes: I printed this using only 20% infill, however some of the top layers did not fill in completely so you may want to print at a higher infill percentage. Parts List: 1 X 5/8"-11x12" Threaded Rod. 2 X 5/8" Hex Nuts 2 X 6203RS Ball Bearings (17x40x12mm)