Sturdy Filament Guide Wanhao i3

An alternative filament holder for the Wanhao i3 Duplicator (aka Cocoon Create, Mono Select).

Based on https://www.thingiverse.com/thing:979847. Not for use with the original Spool holder but works perfectly with this one https://www.thingiverse.com/thing:1635585. Also compatible with this filament locker https://www.thingiverse.com/thing:1280498 and other thingy's created for the original holder