Jump to content
UltiMaker Community of 3D Printing Experts

Extrusion issues

ChrisInNewark

By ChrisInNewark
in Ultimaker 3D printers

 Share

Recommended Posts

ChrisInNewark

ChrisInNewark 0

Posted
Posted · Extrusion issues

I've been having problems for a while now changing my filaments and extrusion.

Whenever I go to change the filament it doesn't extract and gets stuck in the Bowden tube. What appears to be happening is the filament has a bulge or 'plug' at the end which is causing it the jam in the Bowden tube as soon as starts to retract. This usually means that I have to remove the Bowden tube from the feed and push the filament to unblock it.

I've tried cleaning the hotend with the Atomic method numerous times without issue but now I'm finding that when I reduce the temperature to 90°c and pull the filament out its not coming out cleanly. In stead of finding a nice, cone shaped, end on the filament I'm getting a blunt end. What I'm suspecting that's happening is as I pull the filament out its somehow sticking in the hotend and breaking off. I'm also guessing that this is causing the issue I'm having with the fattened filament end.

Has anyone else experienced this and does anyone have a solution?

    • Link to post
    Share on other sites
    ChrisInNewark

    ChrisInNewark 0

    Posted
    • Author
    Posted · Extrusion issues

    It's an UM2 with 1043:28 printing time.

    As first it starts printing fine but usually somewhere on the first layer (depending on the size of the print) it stops extruding.

    What I'm suspecting is happening is when I'm using the atomic method and pulling the filament out the filament is breaking off and remaining in the hotend. When I then feed new filament in its the peice that's remained in the hotend that's first extruding and the new filament is pushing against this which then is causing it to have the plug at the end which results in the blockage. I may well be wrong though.

    As for the Teflon you mentioned I'm not sure exactly what you mean by this and even less sure on how to check it. Lol.

    • Link to post
    Share on other sites
    tinkergnome

    tinkergnome 924

    Posted
    Posted · Extrusion issues

    As for the Teflon you mentioned I'm not sure exactly what you mean by this and even less sure on how to check it. Lol.

     

    Some explaining details:

    https://ultimaker.com/en/resources/19619-ulti-evening-maintenance

    https://ultimaker.com/en/resources/11704-extrusion-problems

    https://ultimaker.com/en/resources/250-disassembly

    • Link to post
    Share on other sites
    ChrisInNewark

    ChrisInNewark 0

    Posted
    • Author
    Posted · Extrusion issues
    Quote by ChrisInNewark

    As for the Teflon you mentioned I'm not sure exactly what you mean by this and even less sure on how to check it. Lol.

    Some explaining details:

    https://ultimaker.com/...-evening-maintenance

    https://ultimaker.com/...4-extrusion-problems

    https://ultimaker.com/en/resources/250-disassembly

     

    Thank you. :)
    • 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
    Followers 1
    Go to topic listing

    • Our picks

      • UltiMaker Cura 5.3 stable released

        UltiMaker Cura 5.3 stable released

        ArunC posted a topic in Ultimaker Cura,

        In this stable release, Cura 5.3 achieves yet another huge leap forward in 3D printing thanks to material interlocking! As well as introducing an expanded recommended print settings menu and lots of print quality improvements. Not to mention, a whole bunch of new printer profiles for non-UltiMaker printers!
          • Thanks
          • Like
        • 24 replies
        MariMakes

        Picked By

        MariMakes,
      • Here it is. The new UltiMaker S7

        Here it is. The new UltiMaker S7

        MariMakes posted a topic in Official news,

        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
        • 18 replies
        MariMakes

        Picked By

        MariMakes,
      • UltiMaker Cura Alpha 🎄 Tree Support Spotlight 🎄

        Cura Alpha With New Tree Support 🎄

        MariMakes posted a topic in Ultimaker Cura,

        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
        • 22 replies
        MariMakes

        Picked By

        MariMakes,
      View All
    ×
    ×
    • Create New...