Filament wiper Ultimaker 2

A filament wiper helps keep dust and other debris from entering the feeder, bowden, and extruder assembly. This one is designed to be able to be installed and removed without re-feeding the filament -- you don't need to remember to slide it onto the filament before feeding.

For use with a lazy-susan turntable, which makes the filament unspool more smoothly.

Designed for an Ultimaker2, but should work for other printers which use a bottom-feed external feeder.