Jump to content

Strange "dots" in cylindrical slices


sjstein

Recommended Posts

Posted · Strange "dots" in cylindrical slices

Hello community,

I created a cylindrical shape to test different parameters of my Ultimaker 2+ and different brands of PLA. I use the tweakAtZ (4.0.2) plugin with Cura (15.04.6) to change the hot-end temp every 10mm up this cylinder.

I opted to print out two of them to check for stringing issues - so just loaded the STL file twice.

When I began printing, I noticed an odd behavior - which I also found by looking at the layer view in Cura. The gcode doesn't print out smooth circles for each layer - it first lays down a few dots on the periphery (within the wall) and then does the circle. See image.

This isn't working out very well - when the nozzle moves back around in the "proper" circle, it hits the dots and the print bed then shudders a bit.

Can anyone tell me why this is happening, and how to avoid it?

Thanks!

CylDots.thumb.JPG.af581bd25f5d35a8b81f06403aeb7feb.JPG

CylDots.thumb.JPG.af581bd25f5d35a8b81f06403aeb7feb.JPG

  • Link to post
    Share on other sites

    Posted · Strange "dots" in cylindrical slices

    Hi,

    this could be infill (the yellow dots). Maybe the thickness of your cylinders isn't an exact multiple of your nozzle size/width.

    You should set infill to 0 and increase wall/shell count.

  • 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...