Jump to content

Print core gets clogged with PLA & ABS


Recommended Posts

Posted · Print core gets clogged with PLA & ABS

Hello all,

Need your assistance with some problems I am having with Ultimaker 3 printer.

For a while now I am having problems printing with PLA black with my ultimaker 3 printer, each time I start a new job the print core gets clogged at the very beginning.

Because of that i tried to use ABS black, if I print a short job (2-3 hours) it comes out ok but if I print a long job like the one with the attached pictures the print core gets clogged also with the ABS.

Does anyone know what is the reason with these issues with both materials? attached are also the Cura parameters for both materials.

All materials are original and being recognized by nfc chip plus i did hot and cold pulls to the problematic print core.



abs 1 of 2.JPG

abs 2 of 2.JPG

pla 1 of 2.JPG

pla 2 of 2.JPG



  • Link to post
    Share on other sites

    Posted · Print core gets clogged with PLA & ABS

    Why does your screenshot shows "not supported" in the profile? Do you use strange layer heights or line widths? Do you use the AA print core?


    Another reason could be that your middle fan is not working. Check that, the fan starts automatically as soon as the print core is over 40° and should run all the time. This fan is responsible to cool your hot end in the upper part.


    Other reasons could be, tangled filament, feeder issues, or something like that. 


    But I would first check the middle fan.

  • 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 5.7 stable released
        Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more. 
          • Like
        • 16 replies
      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
    • Create New...