Jump to content

Changing the teflon coupler?


braddock

Recommended Posts

Posted · Changing the teflon coupler?

Hi guys, I blew the dust off the UM2 to do some prints last week, and have been having nothing but failed prints, all due to under extrusion.

I have some spare couplers, so might as well change it out, but before I do, are there any instructuions on how to do it? I've never pulled the nozzle apart before.

I did do a search, but it's didnt give me a specific topic on the subject.

Cheers.

 

  • Link to post
    Share on other sites

    Posted · Changing the teflon coupler?

    That above video has you take off the 3rd fan. This is completely unnecessary - just skip that step.

     

  • Link to post
    Share on other sites

    Posted · Changing the teflon coupler?

    Ok, thanks guys. Is the new glass filled coupler supposed to last longer? or will it eventually need changing too?

     

     

  • Link to post
    Share on other sites

    Posted · Changing the teflon coupler?

    It too, will need changing eventually.

     

  • Link to post
    Share on other sites

    Posted · Changing the teflon coupler?

    Check out post #20 of this thread for a pic of the correct gap.

    http://umforum.ultimaker.com/index.php?/topic/8513-underextrusion-need-help-with-this-one/

     

  • Link to post
    Share on other sites

    Posted · Changing the teflon coupler?

    ....

    question 1, is it time to get a replacement teflon coupler?

    question 2, when was the new coupler material introduced?

     

    Q1 it probably is worth looking at it to check for wear and deformation, my last one lasted about 600 hours, but it depends on what print material you have been using. Higher temp material seems to cause more wear

    Q2 new teflon coupler was introduced last spring (April/May) last year

    I would also recommend its time for lubrication of all the rods too, I use thin oil on a cloth for the rods and grease for the Z axis

     

  • Link to post
    Share on other sites

    Posted · Changing the teflon coupler?

    If you printed 1000 hrs don't be bothered with repairing the coupler, just replace it, its a (relatively) cheap consumable ...

     

  • Link to post
    Share on other sites

    Posted · Changing the teflon coupler?

    Yes, I would bet money your teflon coupler is toast so just replace it.

     

  • Link to post
    Share on other sites

    Posted · Changing the teflon coupler?

    I would stick with what is displayed in that thread I linked.. And we would have to see pics of the coupler to tell you if it's salvageable. Given the amount of hours you have on it, that's highly unlikely.

     

  • 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 Stable released 🎉
        In the Cura 5.8 stable release, everyone can now tune their Z seams to look better than ever. Method series users get access to new material profiles, and the base Method model now has a printer profile, meaning the whole Method series is now supported in Cura!
        • 5 replies
      • 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...