Jump to content

How to tell when the PTFE coupler is bad


the_schire

Recommended Posts

Posted · How to tell when the PTFE coupler is bad

So I've had my UMO for a few years now, and it's been having an increasingly difficult time pushing material. Last time I tried to print something, I couldn't really push any material through and have spent the last week trying to clean the nozzle and figure out what the problem is. I have never replaced the PTFE coupler, and I'm wondering if that is the problem, causing restrictions and also contributing to the under extrusion I was experiencing when I could still move material.

  • Link to post
    Share on other sites

    Posted · How to tell when the PTFE coupler is bad

    This sound much like the problem I had recently. After a completed print the filament would get stuck and I had to take out the PFA tube and cut off the end of the filament to a taper and reinsert the tube back.

    After a while it got tiring, so I replaced the PTFE coupler. It fixed the problem. Cutting open the old PTFE coupler revealed that it had formed a cavity which allowed the filament to expand, and thus get stuck in the PFA tube.

  • Link to post
    Share on other sites

    Posted · How to tell when the PTFE coupler is bad

    Update, turns out it was the nozzle. Some how it got so clogged that I couldn't even blast out the gunked up material with a torch. Soo... I grabbed the smallest drill bit I have and made myself a 1mm nozzle. Prints faster than ever now :D

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • UltiMaker Cura 5.8 beta released
        Another Cura release has arrived and in this 5.8 beta release, the focus is on improving Z seams, as well as completing support for the full Method series of printers by introducing a profile for the UltiMaker Method.
          • Like
        • 1 reply
      • Introducing the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Thanks
          • Like
        • 3 replies
    ×
    ×
    • Create New...