Symmetric universal connector for tubes, PTFE, Bowden or bracelets. (PLA might not work for long term use)
2,035
2836
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41 k
updated February 17, 2026

Description

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Design

This quick connector features a supporting thread to ease the press in process of the PTFE tube.

The tube will be hold in place by the 2 holding rings on top.

Assembly

Put some painters tape around the tube (leave >2cm free) to get a better grip.

  1. start screwing 10mm in.

  2. wait for 5min so the PTFE will deform and adapt the thread.

  3. screw into final position by pressing and screwing until a tiny end protrudes.

  4. press the protruding rim outwards by putting in some filament and bending out wiggling around to ensure smooth passage.

remove the tape and let it rest a day.

If you need a more secure connection you can add a drop superglue (CA) from the bottom - it will soak the thread and increase the form fit but keep in mind PTFE can't be glued.

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The author marked this model as their own original creation.

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