Jump to content

Cura Wall random bumps


ArtyMarty

Recommended Posts

Posted · Cura Wall random bumps

Cura doing weird things...
Can anyone tell me why this happens?? I've sliced this with various settings on wall/shell thickness , even different overall resolution. All with the same result.
It basically does weird bumpy stuff on a section of layers . if you look at the zoomed out view you can see the green of the inner wall showing through. there is nothing unusual on the inside of the print causing this as far as I can tell.
I even upgraded from an old version of cura to the latest.
I actually did the realtime Play version of the layers to see what it was doing and you can see in that screenshot it's not a "starting a new layer" problem as it's basically in the middle of printing the layer. It just does that outer wall a bit further in and then makes bumpy bits. The outside is a continuous steady angle. It's fine at the bottom, does a few weird mm of layers and then goes back to smooth/normal/nice.

Slice error_04.png

Slice error_01.png

Slice error_02.png

Slice error_03.png

  • Link to post
    Share on other sites

    Posted · Cura Wall random bumps

    I'm pretty sure this is an issue with your STL file.  Did you create this model?  

     

    If you did you probably want to reduce the qty of triangles created when you exported to STL.  When the triangles get smaller than around .1mm you start to get stuff like this.

     

    If you didn't create this then I would pass this model through meshlab and remesh it with quadratic decimation.  It's very easy to do - one menu option possibly cut triangles in half or 1/4 and then click apply.  More here:

    http://www.shapeways.com/tutorials/polygon_reduction_with_meshlab

     

    By the way I'm pretty sure you don't want support for this part - it's more trouble than it's worth.  FFF printers can "bridge" just fine.  The only overhangs you have are all bridged (supported on at least 2 sides).

  • 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
        • 7 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...