Swivel filament guide, the best got better !

See also the two materials version (more difficult to make though) : by http://www.thingiverse.com/thing:2318909

I just got a piece of flexible filament (black NinjaFlex) I wanted to try. No point wasting it to make test cubes and therefore I decided for a printed version of my filament guide published here : http://www.thingiverse.com/thing:1853322 that has well guided a few kg of filament over the last months.

This swivel guide is far simpler and more effective due to its low mass and e