Jump to content

Printer Head Completely Filled with PLA


Recommended Posts

Posted · Printer Head Completely Filled with PLA



I'm an high school engineering teacher. I printed a large part overnight. When I got to school this morning the printer cores were jammed up against the build plate. The PLA had backed up and filled the printer head. I've read on other forums that I can remove the backed up PLA by heating the printer cores. However, the Ultimaker 3 Extended is displaying a "Max temp error on print core 1". Thus I can't access the menu to heat the print cores. Due to the large amount of plastic, I cannot preform maitenance on the printer cores to address the error message. What is the best way to remove this plastic from the printer head? Why did the printer malfunction?






  • Link to post
    Share on other sites

    Posted · Printer Head Completely Filled with PLA

    This generally happens if your print detaches from the bed during printing--it will attach itself to the nozzle, and start going up into the printhead because there's nowhere else for it to go. I recommend reaching out to your reseller.

    • Thanks 1
    Link to post
    Share on other sites

    Posted · Printer Head Completely Filled with PLA

    Thanks for your help. I think you are correct Erin. I checked the part before leaving for the day, 1 hour into the print, and it looked great. In there morning there was no trace of the part. The build plate was completely clean. 

  • Link to post
    Share on other sites

    Posted · Printer Head Completely Filled with PLA

    You'll have to learn how to get parts to stick very well if you will be leaving your printer unattended:



    You can get all that plastic out using a hot air gun but it's going to take you a long time.  A hair dryer might work also - not sure.  You need to get it up to around 60C.

  • 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

      • 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
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    • Create New...