EZ Clip-On Filament Guide for Feed Me!

thingiverse

This key ring-inspired part is designed using the same code, intersecting to create a structure for holding filament without reloading it into your extruder. Place it over the edge of your Prusa Mendel printer frame (e.g., MakerGear) and enable even pulling by the extruder gear like this mount: http://www.thingiverse.com/thing:123152. Download, print, and for added stability, use an M4 bolt and nut in the programmed holes at the top of your printer. Slip any filament into the inner circle of the "key ring," which is modified from this thing: http://www.thingiverse.com/thing:1378. The design uses modules from that source, resulting in a cohesive and organic feel due to its limited design approach.