Jump to content
Ultimaker Community of 3D Printing Experts
paultng1

Leaking filament on top of heating block

Recommended Posts

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

Share this post


Link to post
Share on other sites

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

Share this post


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

    • Introducing Ultimaker Cura 3.6 | Beta
      Ultimaker Cura 3.6 | Beta is available. It comes with new features, bug fixes, and UX improvements. We would really like to have your feedback on it to make our stable release as good as it can be. As always, you can download the beta for free from our website, for Windows, MacOS, and Linux.
        • Like
      • 95 replies
    • Print Core CC | Red for Ruby
      Q: For some users, abrasive materials may be a new subject matter. Can you explain what it is that makes a material abrasive when you are not sure which print core to use?
      A: Materials which are hard in a solid piece (like metals, ceramics and carbon fibers) will generally also wear down the nozzle. In general one should assume...
        • Like
      • 30 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies
×

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!