Jump to content

Minimizing initial stringy-ness


jleichne

Recommended Posts

Posted · Minimizing initial stringy-ness

Hey yall'

I've only had this printing for like two days but already I have been impressed by the ability of the built-in retract mechanism in Cura (which I have barely played with but was able to print the vertical DNA model rather accurately).

Here's my question: When I warm up my head, it always starts pushing out tiny strands of filament. When it begins printing, I always need to make sure that the filament is a certain length so that it does not mess up the first layer and hence the whole print.

Do you all just do what I do, and pull it off real quick right as it starts printing?

Jared

  • Link to post
    Share on other sites

    Posted · Minimizing initial stringy-ness

    I've been tuning on this the past few days. I use a variety of methods to help off-set this. I do try to keep a small bit of card stock in my hand (like a business card) so that I can catch the ooze right before the job begins. I also have taken to using two skirt runs around each part with a slightly larger distance from the model. That usually is enough to get any globs to stick around the outside. Lastly, I've seen that lowering the temperature helps a lot too. I have one job I run at 185 degrees that doesn't ooze at all, but sometimes has adherence issues. Generally, temperatures between 190 and 200 degrees help to reduce the ooze. But, if you are printing larger and faster, you'll need those higher temps. In my case, I was printing objects that are about 5 mm in size at very slow speeds, so oozing and temperature control become more critical on the small parts.

    -John

  • 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

      • UltiMaker Cura 5.3 stable released
        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
        • 56 replies
      • 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
        • 18 replies
      • UltiMaker Cura 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
        • 29 replies
    ×
    ×
    • Create New...