Jump to content
UltiMaker Community of 3D Printing Experts

"Tippingpoints" - how to print them with?


fuchs

Recommended Posts

Posted · "Tippingpoints" - how to print them with?

Tippingpoints.jpg (

https://dl.dropbox.com/u/34708308/Tippingpoints.jpg

)

Printing objects with a pointy end (like http://www.thingiverse.com/thing:18218 or http://www.thingiverse.com/thing:24255 results in a mess at the endpoints, mostly (i think) because there is only a very small space to print on.

I am using Cura 12.08 with the basic parameters. Only change i did was "Cooling time" which i set from 8 to 10.

My guess is, that the hot hotend stays for too long in the vicinty of these small patches and the radiation heat prevents the spots from cooling down (fan is running of course).

Any ideas how to get nicer ends?

I read about turning the speed for the last layers down to 70, 50 or even 40% - but isn't that basically the same as the "Cooling time" parameter?

I am otherwise kinda happy, but it spoils the experience when the last few layers are bad afters hours of printing :-/

  • Link to post
    Share on other sites

    Posted · "Tippingpoints" - how to print them with?

    what temp are you printing at ?

    ii noticed when i dropped from 230 to 200 printing PLA, that these top tip blobs were almost completly removed.

    Ian :)

  • Link to post
    Share on other sites

    Posted · "Tippingpoints" - how to print them with?
    what temp are you printing at ?

    ii noticed when i dropped from 230 to 200 printing PLA, that these top tip blobs were almost completly removed.

    Ian :)

    Ah, currently i am printing at 210 and using the Ultimaker PLA. Will try 200 degrees next. Thanks! :mrgreen:

  • Link to post
    Share on other sites

    • 4 weeks later...
    Posted · "Tippingpoints" - how to print them with?

    Maybe even try temperatures all the way down to 190 degrees. That has helped me on similar situations. It will just take some experiments to balance the temperature that the whole job can deal without having layer separation, bed attachment issues and still getting nice detail on the finer parts of the model. At a lower temperature, the filament doesn't just freely ooze out of the hot end and actually has to be pushed out, giving more control for those smaller more detailed areas. Also be sure to check that your minimum speed in the expert settings isn't speeding up your minimum layer time setting.

    -John

  • Link to post
    Share on other sites

    Posted · "Tippingpoints" - how to print them with?

    I also recommend going to 5 or even 3 seconds layer time. The defaults haven't been tweaked to perfection for these kinds of details.

  • 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
        • 22 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
        • 22 replies
    ×
    ×
    • Create New...