Side clip filament guide for Printrbot Simple (late 2013 w/wood extruder)

This clips on to the side of the extruder. It provides a hole to keep the filament centered over the hobbed gear as it is fed into the extruder. You may want to use a drill to bore out the hole to make sure the filament can pass through easily without catching.

Intended for 1.75 mm filament and late 2013 Printrbot Simple wood extruder.

This design stays in place better than my previous filament guide, which is available here: http://www.thingiverse.com/thing:265376