Filament Spool - 100% Printed

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I needed a spool to share some filament with a friend so I sat down and designed one. I know there are a few others, but I wanted something completely printable, no added hardware, and some ideas were already spinning around in my head. There's a short and long hub version - depending on your filament holder, the long version might be better to keep the arms from catching. Print Settings: Printer: Monoprice Maker Select (Wanhao i3) Rafts: No Supports: No Resolution: .2 Infill: 20 Notes: Print one Hub (regular or long), one Side, one Nut and three Arms. Lay all items flat for printing, hub with threaded part up. Be very careful of over extrusion - the threads are high precision. If you find the nut won't thread on to the hub, you might be over extruding - reduce your flow rate slightly. With accurate extrusion, I found that the threads worked well at .2mm. I designed this in Fusion 360