Filament feed tension flexible spring

Improved the design.
Increased the strength at mounting point and made it easier to secure when you can't look at the mounting position. The new T-nut is much easier to grab and twist and has a hole in it for an auxiliary spring should you wish to use one. Two versions of the spring one with a key to prevent rotation with the other is flat mounting at any angle.




Filament feed tension spring. Designed for an aluminum extrusion that is used on many printers.

Works like a fishing pole.