Slotted locking filament guide for Wanhao Duplicator i3

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5387481.

Remix of Wanhao Duplicator i3 Filament Guide Tube Adapter, Wanhao I3 Filament Guide for Top Spool Holder, and Filament Guide Locking Part for Wanhao i3.

Slotted filament guide with a knurled rotating insert. Guides the filament above the extruder, preventing sharp angles, with a slot and a knurled rotating insert to prevent the filament from slipping out unexpectedly. Added the knurls to make it easier to rotate. Insert presses into place.

Works with 2.0 and earlier. Will not fit 2.1+ without modification.

Attaches to the upper right carriage screw hole with a slightly longer M3 screw (same as thing:877258)