SpoolHolder for 2020 Extrusion

This Holder is attachable to 20x20 aluminium-extrusion by M4x12 cylinder-head screw (DIN912).

* Print 2 arms, 2 knobs, 1 rod and two claws.
* Insert a 6000ZZ-bearing into each arm and fix them 110mm apart from each other on the aluminium extrusion (bearings facing outwards).
* Stick the rod through the center-hole of the spool you want do use and screw a claw onto the rod from each side to lock the spool.
* Put the threat of the knobs through the bearings and screw them into the rod holdin