About this 3D model

Here only test files. ALL FILES HERE: https://www.redpah.com/product/4069/ (with a small contribution) VIDEO: https://youtu.be/l7WOmbPqmVg With this special spool holder, the reel of filament rotates almost without friction andREDUCE THE EFFORT OF THE EXTRUDER MOTOR. Thanks to the quick lock-unlock system and the LENGTH OF 70 mm, it is suitable for all types of Zortrax reels: old, very old and new. Screw countersunk head (1): 4.8x19 mm Layer: 0.19 mm (0.09 mm for Rotating Cylinders)Infill: 40%Material: Ultrat or ABS or Hips