Designed to mount onto or assembled into the Ecksbot.Inspired by, but not derived from: http://www.thingiverse.com/thing:14581 http://www.thingiverse.com/thing:18702scad file has switch to change mount type.spacer=0 Clip-on mount spacer=1 Use Hook in place of Spacers in Ecksbot build. (Untested!)I recomend using a filament guide (thing:16267 V4)EnjoyNote: Released Flies more rounded than Pictured Prototype.Update: Works with new EckerTech spools!Print EcksHook1Clip.stl Clip it to Spacers between frame and right Z motor mount.ORPrint EcksHook1Spacer.stlUse inplace of spacers in Ecksbot buildThenClip on guide. Thread filament. Enjoy!