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Ender & CR10 Filament Extruder Block with Threaded Coupler and Nut

Creation's quality: 5.0/5 (1 vote)
Evaluation of members on the printability, utility, level of detail, etc.

3D model description

The PC4-M6 Coupler that came with my Ender 3 was broken out of the box. The extra that came with the printer only lasted a few prints until it could no longer hold the PTFE tube when printing. I found this genius printable coupler but the threads were so weak that it broke when I was trying to thread it into the extruder block. Thus, this remix.

With this block, we no longer need to buy couplers. Just use a wrench to make this tight and the PTFE tube aint goin nowhere. An added bonus is this block is flexible filament friendly. I trimmed my PTFE tube a bit and pushed it through to get it closer to the gear and bearing.

I have been printing several months with no issues. Including many 10+ hour prints and several 20 hour prints back to back.

Enjoy and post your makes!

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3D printer file information

  • 3D design format: STL Folder details Close
    • Filament_Extruder_Block_with_Threaded_Coupler.stl
    • bowden_fitting_nut.stl

    Learn more about the formats

  • Publication date: 2019/08/02 at 11:46





Just having fun with my Ender 3 and sharing my ideas along the way.

If you found my Things useful, treat me to a cup of coffee by using the button 👇


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