Jump to content

Recommended Posts

Posted · Filament stuck in hot end Isolator coupler umo

Hey guys,

I have one big problem, very often the filament stuck in the hot end Isolator coupler. It looks like the filament where compressed and create a seal and print is gone, i had to disassemble the Head and remove the seal.

I replaced every part of the head including the coupler but it still happens and i don't know why.

Can anybody give me a advice how i can fix it ?

Thx

  • Link to post
    Share on other sites

    Posted (edited) · Filament stuck in hot end Isolator coupler umo

    Couplers compress overtime and dies, changing the size leaving a gap for the filament. You probably have a) a dead coupler or b) a china coupler with the wrong size.

    Also propably you have black goo on the lower part of the barrel/peek. If so, you need to take out the coupler and do atomic pulls of the goo that it's between the coupler/peek and get a new ptfe coupler.

    Make photos it's easier.

    Example of black goo dead coupler https://ultimaker.com/en/community/18531-multiple-problems-see-picture#reply-128039

    Edited by Guest
  • Link to post
    Share on other sites

    Posted · Filament stuck in hot end Isolator coupler umo

    All parts are new, bought from a licensed Reseller so i think it is not a cheap China product but maybe :). i'will made Pictures after work so you can see exactly what my Problem is.

  • Link to post
    Share on other sites

    Posted · Filament stuck in hot end Isolator coupler umo

    Then maybe you have an space because the peek/barrel ain't well inserted. Also, check that the nozzle must be tight (don't overdoit because it can break) while hot but the manual fails to explain that

     

  • 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

      • Help Us Improve Cura – Join the Ultimaker Research Program
        🚀 Help Shape the Future of Cura and Digital Factory – Join Our Power User Research Program!
        We’re looking for active users of Cura and Digital Factory — across professional and educational use cases — to help us improve the next generation of our tools.
        Our Power User Research Program kicks off with a quick 15-minute interview to learn about your setup and workflows. If selected, you’ll be invited into a small group of users who get early access to features and help us shape the future of 3D printing software.

        🧪 What to Expect:
        A short 15-minute kickoff interview to help us get to know you If selected, bi-monthly research sessions (15–30 minutes) where we’ll test features, review workflows, or gather feedback Occasional invites to try out early prototypes or vote on upcoming improvements
        🎁 What You’ll Get:
         
        Selected participants receive a free 1-year Studio or Classroom license Early access to new features and tools A direct voice in what we build next
        👉 Interested? Please fill out this quick form
        Your feedback helps us make Cura Cloud more powerful, more intuitive, and more aligned with how you actually print and manage your workflow.
        Thanks for being part of the community,

        — The Ultimaker Software Team
        • 0 replies
      • Cura 5.10 stable released!
        The full stable release of Cura 5.10 has arrived, and it brings support for the new Ultimaker S8, as well as new materials and profiles for previously supported UltiMaker printers. Additionally, you can now control your models in Cura using a 3D SpaceMouse and more!
          • Like
        • 18 replies
    ×
    ×
    • Create New...