Yet Another Spool Holder

by marcoalici, published

Yet Another Spool Holder by marcoalici Oct 13, 2012
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Yet Another Spool Holder by marcoalici is licensed under the GNU - GPL license.

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A spool holder based on pulleys, Huxley frame vertex feet and threaded rods.

  • 2013-02-26 UPDATE: I scaled up 10x the model, that had wrong units (thanks to mbasov)




  • 8 pulley parts (file "puleggia_03.stl")
  • 4 frame vertex feet from ReprapPro Huxley ((http://www.thingiverse.com/thing:16625);


  • 4 ball bearing type 626 (6x19x6mm);
  • 6 M6 threaded rods. Lenght is not critical, and can be adjusted on the spool dimensions. I just cut one 1 meter in six equal parts (166mm);
  • 24 M6 nuts;
  • 24 Ø6 washers


  1. Print the 8 pulley parts and the 4 frame vertex feets;
  2. Put each ball bearing between two pulley parts as in the image;
  3. Mount all the parts as in the provided exploded view.
  4. Put the spool onto the pulleys, sliding them to fit the dimensions
  5. Enjoy printing. The spool will roll over the pulleys as long as filament is required.

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Are you sure there is correct the model file?
When I am trying to slice this model out dimension less then 5 mm...

Uh, you are right! The model is scaled down 1:10.
I'll update it ASAP. Thank you for your feedback!

I think scale factor is 1:8.172 :)

I am trying to find scale factor by this OpenSCAD script:

module bearing (){
//bearing type 626 (6x19x6mm);
difference (){
cylinder(h=6, r=8, $fn=60);
cylinder(h=6.2, r=3, $fn=60);

scale(8.172) import("puleggia_03.stl");

scale(8.172) import("puleggia_03.stl");

Scale factor is 1:10.
I've just uploaded the fixed model.

Thank you. I will print it this evening.