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First Layer Jagged in X and Y axes  

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PaulH
(@paulh)
Member
First Layer Jagged in X and Y axes

My class is printing lithophanes and using Cura to convert the images for our Prusa i3's to print. We do a height of 1, first layer height 0.1, and print it at 0.1 layer height. One printer is smooth and the other one has extremely jagged layer edges like this. I normally use PrusaSlicer, but have swapped to Cura for the lithophane feature.

Here is what I have checked:

  • Nozzle is clean
  • z-height is adjusted (both ways) with no change. 
  • X and Y axis steppers appear to be moving smoothly.
  • Other printer is printing with exact same Cura settings, but first layer is smooth.

I believe it is affecting the clarity of the lithophanes. Any thoughts on smoothing this out?

Posted : 13/12/2023 9:37 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: First Layer Jagged in X and Y axes

I believe the  Live Z value is too large a negative number which causes ripples. 
You can adjust live Z whilst a print is running, so I suggest that you re start the above print, and begin reducing the size of the liveZ negative number until the print surface goes smooth. 

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 13/12/2023 11:27 pm
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