FT-5 No More Tears Anti-Tangle Chip Brush Filament Guide

During a large print my new spool of filament started to unravel and tangle. Rather than risk waking up the next morning to a failed print, I MacGuyvered a makeshift solution using a 1" chip brush and some zip ties. This thing is a more elegant version of the same idea.

The filament is guided through the brush's bristles, giving it just enough resistance that it can be easily pulled out as the printers extruder requires, but doesn't allow the filament to get pushed back out towards the spool