Uses only 1 meter of filament and prints in less than 20 minutes.
After using lots of the options available, I needed to make one.
The clamp type ...is my favorite because those in a single piece stresses the PLA and after some time the filament breaks.
Added a grip at the tip of the screw that rotates freely and firmly hold the filament in place, the curved outside gives strength and uses less filament.
The file is in STL and in the best orientation.
3 walls and 0% i...nfill will give you a strong useful piece.
Twist the grip to make it loose and rotates freely.