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Self-centering tapered-thread Z-axis coupling (5/6/8mm)

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Creation quality: 5.0/5 (1 vote)
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  • 1.1k views
  • 1 like
  • 31 downloads
  • 1 make

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3D design format
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  • tapered_coupler_5_5mm.stl
  • tapered_coupler_5_6mm.stl
  • tapered_coupler_5_8mm.stl
  • tapered_nut_5mm.stl
  • tapered_nut_8mm.stl

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Publication date 2023-04-14 at 19:43
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Published to Thingiverse on: 2014-07-16 at 07:04
Design number 1169098

3D printer file info

3D model description

NEW VERSION AVAILABLE: http://www.thingiverse.com/thing:602481


This is a rigid self centering axis coupler.

It's ideal for printers like Prusa i3, because the z-axis threaded rods normally have no dedicated bearings or bushings to ensure coaxiality between the steppers and the rod itself.

This Thing adds some rigidity to this system and keeps the axis coaxial to each other.

Make sure your rods are as straight as possible.

Bent rods can lead to Z-axis wobble. In this case you should install an anti wobble system.

https://www.youtube.com/watch?v=XgKKtKqLq50

14-07-16: Added a 5/8mm version

14-07-17: Added a 5/6mm version - use nut_5mm for both sides

3D printing settings

Print this as fine as possible to get nice threads.

This one is printed with 0.16mm layer height, 2 perimeter, 100% infill.

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