Prusa Mk3 Filament Guide

This filament guide clips onto the dual filament holder that comes with the Mk3. Provides a nice stable feed of the filament to the extruder, and it also gives you a way of temporarily holding onto the filament during swaps.

Prints with no supports.

EDIT: Added a "v2" version incorporating some suggested improvements. V2 is wider and includes a diagonal slit in each side so you can remove or add the filament without unloading it from the extruder.

EDIT: Some folks reported trouble print