Jump to content



Recommended Posts


After bed leveling while the nozzle is still near the front of the bed, and despite "Enable Prime Blob" being turned off in Cura, there is a short extruder purge sequence that will:

-most of the time drag some oozing material into the print area and

-sometimes the extruded material that the printer tries to smear off near the front of the bed will remain stuck to the nozzle and get dragged into the print area.

Is there any reason for that purge when a skirt or brim is used?

How to completely disable it? I see gcode command G280 is related to priming but based on Cura settings my print files have G280 S1 which I understand should not do anything. Guessing it's a firmware issue?

  • Link to post
    Share on other sites


    Are you sure it is a purging and not only an oozing material during the heat up of the nozzle?

    Depending on the material (PETG i.e.) I see from time to time some material oozing on my S3, but never so much that I had problems.


    Do you have a picture?

  • Link to post
    Share on other sites


    During bed leveling it cuts all power to heaters (bed and cores).  When leveling is over it has to heat everything back up to temperature.  While it is heating up, the plastic expands and some filament leaks out.  But it should then start printing the skirt (or brim) and get connected to that instead of to your print.


    Could that be it?


    Also when it is finally ready to print it does an "unretract" because it retracts at the end of the previous print.

  • 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 the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Like
        • 2 replies
      • 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
        • 26 replies
    • Create New...