Jump to content
Ultimaker Community of 3D Printing Experts

Cleaning a clogged nozzle and broken filament

Recommended Posts

I have here a completly clogged core. For details, look at the pictures.

Hot/Cold pull does not help (or is not applicable). Probably because the nozzle is clogged and the upper part is blocked somewhere inside.


My idea would be to drill a very small hole into the upper part of the material and try to pull it out this way.
Is this the way to go, or is there another? Had someone similar situations? I thought about unscrewing the core, but stopped in between. I guess I wanted to ask first.


Any help is appreciated!



Share this post

Link to post
Share on other sites

I would try to put the print core back to the printer, heat it up and then try if you push the filament manually through from above. If it is not working, try with a very fine, small needle if you can push in from the nozzle size.


Disassembling the head is dangerous because it is very fragile and break easily, but you can try it as a last chance because otherwise, you will need a new print head anyway.


Here is a good video from @gr5 about how you should the disassembling:


Share this post

Link to post
Share on other sites

If the above things would not work, and you have a screw extractor for removing broken screws, maybe that could be an option too?


But I would suggest you watch a couple of tutorials on screw extraction first, on Youtube.


Or maybe a wood screw might also work? First drill a small hole in the center of the filament, at *very* low speed so the filament does not melt. And then insert the wood screw and pull?


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

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 130 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!