Filaflex spooner (Better for Hephestos)

This spooner will mantain the filaflex filament tense so it wont loop around the extruder.
It goes just in top of the extruder so the extruder-cilinder distance, and tension as well, is allways constant.
As I have been asked, I uploaded some pictures. Notice the picture´s spooner is an older version, the one uploaded here will give you more facilities for inserting the filaflex.