Filament Guide

Filament Guide:

Update: 8.11.18
I wasn't entirely happy with the version I initially made. This one is a better fit, and stronger. Old files replaced with the updated versions.

Just a quickie really...

Very occasionally, usually when my back is turned, filament can jump the reel and so snag on the arm disrupting a print in the process.
This little thingy puts a stop to that. Mount it between the filament reel and your extruder on the same 2020 extrusion (assuming you have a standard set up) and place the filament within the guide's hook.

i) Filament can no-longer jump the reel
ii) As a bonus the filament enters perpendicular to the extruder, possibly reducing friction and so slips.