Jump to content
Ultimaker Community of 3D Printing Experts

Leaking filament on top of heating block


paultng1
 Share

Recommended Posts

Posted · Leaking filament on top of heating block

Hi,

I am a newbie. I have tried printing some sample prints. However, today I noticed liquid filament on top of the heating block during the printing process. What could be the cause? A plug or the heating block is not tight enough?

Thanks

paultng

 

  • Link to post
    Share on other sites

    Posted · Leaking filament on top of heating block

    Something wasn't tight enough. I recommend you ignore it as long as it isn't dripping on your print. After a lot of useage the PLA eventually turns brown and then black after repeated heating and should plug it's own leak for you without you having to do anything.

    If it becomes a problem you can try to get your hand on a little bit (1 meter?) of ABS filament and print with that a bit which will seal up all the leaks. Or you could take it apart but be very careful - make sure it is very hot first and be gentle as it is easy to destroy brass - brass is a bit soft/weak.

     

    • Like 1
    Link to post
    Share on other sites

    Posted · Leaking filament on top of heating block

    I had this exact same problem. It was benign at first but eventually began to grow into such a lake that it would trickle down the side of the heating block and off of my hot end into the print which would mess it up in some situations. The easy fix for this with the old nozzle was to pump some ABS through it but with the newer version of the hot end, it is much easier. All you need to do is to heat the hot end to around 220 degrees Celsius, take two pairs of pliers, use one to grab the PEEK and the other to grab the block. Hold the block while you rotate the PEEK toward yourself until it is tight. But be careful! Brass is not very strong and I have seen many people snap their brass tube inside their heating block.

    Anyway, I tightened mine just as I explained and not a drop has shown itself. Hope this helps. Good luck :wink:

     

    • Like 1
    Link to post
    Share on other sites

    • 2 weeks later...
    • 1 year later...

    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...