Jump to content

Dual-extrusion oozes, requiring a prime & wipe tower


MobyDisk

Recommended Posts

Posted · Dual-extrusion oozes, requiring a prime & wipe tower

I have a brand new S3 and I can only print dual extrusion if I "Enable prime tower" and "wipe inactive nozzle on prime tower."  Is this normal?  If I don't use the tower, the ooze from the inactive head drags across the previous layer.  The "ooze shield" option does not help.  This causes:

several effects:

1) The inactive nozzle oozes until it touches the print, at which point the ooze string tears off the head and sticks onto the print.  This repeats until it switches nozzles.

2) The inactive nozzle oozes but does not drop the string onto the print yet.  When the printer switches to the new nozzle, the string is put down when it starts printing.

3) Worst-case: The ooze sticks to the print and tears the material off the print bed, ruining the print entirely.  This happens on small prints with thin columns.

 

The wipe tower resolves these problems.  I want to just know how normal this is.  I am going to take some pictures of prints with and without the tower, showing the difference.  The S3 replaced my ancient Replicator Dual which oozed so much that I declared dual-extrusion printing useless.  I am disappointed to find that 10-years later, the oozing situation does not seem to have been resolved, and I don't see anyone really pointing that out.  When I look up dual-color prints or prints with PVA I get nothing but glowing reviews.  Is my experience unusual?  If it is not unusual, then why is "Wipe Tower" not on by default when using dual-extrusion?  I just don't see how anyone can successfully print without it.  The Stratasys printers I've seen have a dedicated wipe area, and they wipe every layer (maybe even more often than that), which leads me to believe this is normal, just unstated.

 

I'm experiencing this both with Ultimaker PLA and Ultimaker PVA, both fresh out of the box.

  • Link to post
    Share on other sites

    Posted · Dual-extrusion oozes, requiring a prime & wipe tower

    Comparison picture

    Ultimaker S3, dual-extrusion Benchy, Ultimaker tough PLA black & Ultimaker PLA silver metallic, 0.6mm layer height.

    Left is with wipe tower, right is without wipe tower.

     

    I am surprised the wipe tower itself is so clean.  I expected to see strings on it.

    S3 benchy dual-extruder 0.6mm - wipe tower -vs- no wipe tower PXL_20220118_140908099.jpg

    S3 benchy dual-extruder 0.6mm - wipe tower.jpg

  • 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...