Jump to content
Ultimaker Community of 3D Printing Experts

How to tell when the PTFE coupler is bad


the_schire
 Share

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
     Share

    • Our picks

      • The Ultimaker Showcase — October 14. What's new?
        Your dear friends at Ultimaker have some exciting news and insights for you!
         
        • 0 replies
      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 8 replies
    ×
    ×
    • Create New...