Jump to content

Unknown 'scarring' issue

Recommended Posts

Posted · Unknown 'scarring' issue

Hi everyone, Im quite new to 3D printing and have run into an issue with my prints. I am not entirely sure what is happening so I'm struggling to search for help. Basically when I print a large, flat (floor-type) surface I get this zebra-stripe scarring on the top layer. It doesn't seem to happen on other type of prints so that isolates the issue a little bit.


It looks like either the plastic is melting weirdly or the tip is gouging the surface, see the attached pictures for a better image. Initial thoughts were overextrusion (which I've checked), bad bed levelling (which doesn't seem to be the problem as all other layers print perfectly and other prints have no problems), incorrect nozzle or bed temperatures (I'm not running them particularly hot though), and then finally, a top/bottom layer thickness that is greater than the thickness of the surface being printed and thus the layers are not completing.


I am printing on an Ender 3 Pro with PLA at 190C to a bed at 65/70C, slicing with Cura.


If anyone has any suggestions or thoughts, even if it's just some direction to look into please share them, they would be greatly appreciated.






  • 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

      • 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
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    • Create New...