Jump to content

rough - smooth surface


danfin

Recommended Posts

Posted · rough - smooth surface

my 3d printer produces quite rough surfaces on the lower 2 centimeters of this object, and above produces nice even looking layers. The heat bed is at 50°, a lower bed temp does not affect the quality. Printing 0.06mm Layers at 200° and 7mm/sec. The walls are about 1mm, nozzle is 0.4mm. Any hints on why this changes from rogh to smooth?

20200612_155514.jpg

  • Link to post
    Share on other sites

    Posted · rough - smooth surface

    Personally i would up the hot end by 5c at a time up to about 215c. I normal print PLA at 205c and it could be that its taking your printer a bit to full get a good flow going as that part don't look very big.

  • Link to post
    Share on other sites

    Posted · rough - smooth surface

    I would print faster - maybe 25mm/sec at least but I suspect this has nothing to do with your issue.

     

    The telling piece of information is the 1mm thickness.  Look at this part in preview mode and look at the blue movement lines (make sure travel color is enabled) and look at the difference between bottom 1/3 and top 1/3 of your part.

     

    I don't know exactly how to improve your part - maybe make it a bit thicker (the upper part is probably thicker when viewed as horizontal slices wheras the thickness as travelled by a normal (perpendicular to surface) is probably always 1mm as you say.

     

    Therefore it appears the thicker areas are doing better.

     

    You might also try the MB/burtoogle version of Cura which does better with "thin" walls.  Less craziness, less moves:

    https://www.dropbox.com/sh/s43vqzmi4d2bqe2/AAADdYdSu9iwcKa0Knqgurm4a?dl=0&lst=

  • Link to post
    Share on other sites

    Posted (edited) · rough - smooth surface

    oops, speed is higher of course.. it was 70mm/sec now is 60mm/sec. I raised temperature to 215°, and I tried 'spiralize outer contour' which seems to help, as the nozzle now travels continuously, with a simpler cone object. So next I'll try if enable jerk control might work too, and allow to print more complex objects. I am trying the MB/burtoogle version but I don't see much difference, I blieve it's a settings problem rather. Left one is with improved settings.

    Bild 2020-06-13 um 11.01.05.jpg

    Edited by danfin
  • 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

      • Introducing the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Thanks
          • Like
        • 3 replies
      • 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
        • 26 replies
    ×
    ×
    • Create New...