Jump to content

Sloppy print (stringing?)


marjolein

Recommended Posts

Posted · Sloppy print (stringing?)

Hi everyone,

I have another 3d printing question. I use my Ultimaker to make jewellery (see www.feistyfavorites.com), and while working on a new necklace I am suddenly seeing bad print results. (This is regular Colorfabb PLA)

IMG_1828.jpg

I'm not sure what's going on, does anyone have any ideas what to try? I'm using an Ultimaker 2. I already tried lowering the temperature to prevent stringing.

Hope you can give me some tips.

Thanks in advance,

Marjolein

  • Link to post
    Share on other sites

    Posted · Sloppy print (stringing?)

    Hi Marjolein,

    Thank you for your post!

    I was wondering if you had a couple of other photo's of your prints to get a better view on what exactly is happening. The necklace is mostly just black now, and even though we can see some strings, it lacks some details. (it is difficult to see for example, if it is all flat, or in 3D, how and where are these strings attached).

    What did your print look like after changing the temperature?

    Do you use a default profile or do you have a lot of changes? (is retraction still enabled?)

    Thanks!

  • Link to post
    Share on other sites

    Posted · Sloppy print (stringing?)

    At a glance my first thought is "those should just break off easily with no tools".

    I don't get these very often anymore though. I don't know why. Probably because 1) I'm printing slower- typically 35mm/sec. That way there is less build up of pressure in the nozzle when you want it to stop extruding.

    Some things to try:

    2) Make sure there is no play/backlash in your bowden tube - it should not slide up and down even 0.01mm. If it does I can explain how to fix.

    3) Try lower nozzle temperatures:

    https://ultimaker.com/en/community/2872-some-calibration-photographs

    4) Try a different filament color. Coloring additives make a big difference in viscosity and also stringing. White pla is the worst for stringing so try anything but white.

  • Link to post
    Share on other sites

    Posted · Sloppy print (stringing?)

    One more thing - create a very quick print like the one I did in #3 above so you can see effects of speed or temperature within one single 5 minute print. Instead of printing 20 different 4 hour long prints you can learn much more from 3 5 minute prints where you vary the temperature and speed and retraction from the TUNE menu while printing.

  • 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 5.7 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
        • 18 replies
      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
         
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
    ×
    ×
    • Create New...