Jump to content
UltiMaker Community of 3D Printing Experts

S3 PRE-PRINT INITIAL PURGE


AL-X
 Share

Recommended Posts

Posted · S3 PRE-PRINT INITIAL PURGE

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

    Posted · S3 PRE-PRINT INITIAL PURGE

    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

    Posted · S3 PRE-PRINT INITIAL PURGE

    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
     Share

    • Our picks

      • Here it is. The new UltiMaker S7
        The UltiMaker S7 is built on the success of the UltiMaker S5 and its design decisions were heavily based on feedback from customers.
         
         
        So what’s new?
        The obvious change is the S7’s height. It now includes an integrated Air Manager. This filters the exhaust air of every print and also improves build temperature stability. To further enclose the build chamber the S7 only has one magnetically latched door.
         
        The build stack has also been completely redesigned. A PEI-coated flexible steel build plate makes a big difference to productivity. Not only do you not need tools to pop a printed part off. But we also don’t recommend using or adhesion structures for UltiMaker materials (except PC, because...it’s PC). Along with that, 4 pins and 25 magnets make it easy to replace the flex plate perfectly – even with one hand.
         
        The re-engineered print head has an inductive sensor which reduces noise when probing the build plate. This effectively makes it much harder to not achieve a perfect first layer, improving overall print success. We also reversed the front fan direction (fewer plastic hairs, less maintenance), made the print core door magnets stronger, and add a sensor that helps avoid flooding.
         

         
        The UltiMaker S7 also includes quality of life improvements:
        Reliable bed tilt compensation (no more thumbscrews) 2.4 and 5 GHz Wi-Fi A 1080p camera (mounted higher for a better view) Compatibility with 280+ Marketplace materials Compatibility with S5 project files (no reslicing needed) And a whole lot more  
        Curious to see the S7 in action?
        We’re hosting a free tech demo on February 7.
        It will be live and you can ask any questions to our CTO, Miguel Calvo.
        Register here for the Webinar
          • Like
        • 13 replies
      • UltiMaker Cura 5.3.0-Alpha 🎄 Tree Support Spotlight 🎄
        Are you a fan of tree support, but dislike the removal process and the amount of filament it uses? Then we would like to invite you to try this special release of UltiMaker Cura. Brought to you by our special community contributor @thomasrahm
         
        We generated a special version of Cura 5.2 called 5.3.0 Alpha + Xmas. The only changes we introduced compared to UltiMaker Cura 5.2.1 are those which are needed for the new supports. So keep in mind, this is not a sneak peek for Cura 5.3 (there are some really cool new features coming up) but a spotlight release highlighting this new version of tree supports.  
          • Like
        • 17 replies
      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 14 replies
    ×
    ×
    • Create New...