Jump to content

Why cura stitching two walls together


Recommended Posts

Posted · Why cura stitching two walls together



I'm trying to understand why cura makes these small stitches between walls, when in theory there is no gap.

Here's a picture of it in preview mode:




When I was printing this I noticed that the printer head was stuttering like hell, and I thought something went wrong with the hardware.. Then checked that section in preview mode, and noticed the small stitches, so the printer was doing what was told it to do..

Some details: cura 4.8. that is a bottom layer in the picture, I made this model in fusion 360. The width of this part should be 2.4 mm as seen in the picture below (printing upside down).

Line width is 0.4 mm (ender 3 v2 btw), so if I'm correct, this should yield exactly 6 lines, but it adds these extra stitches inside.

(First the width of this part was 2.5mm, and I thought this was causing the issue, as there was a gap left of 0.1mm,  it would be logical, but it does the same with 2.4mm)

Sounds like a rounding issue, or I don't know. Btw I started decreasing the width of this part: 2.39 mm same result, and with 2.38 mm there are 6 lines, no stitches.

Why is it doing this, and how can I avoid it?



  • Link to post
    Share on other sites

    Posted · Why cura stitching two walls together

    It's likely caused by rounding errors.


    We are working on a complete overhaul of the slicing algorithm to resolve this issue. You can find an early version of that here:


    • Like 1
    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 5.8 beta released
        Another Cura release has arrived and in this 5.8 beta release, the focus is on improving Z seams, as well as completing support for the full Method series of printers by introducing a profile for the UltiMaker Method.
          • Like
        • 1 reply
      • 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
    • Create New...