Random wavy lines on straight wall

[Johannes_m 0]

Hello,

 

for some prints, cura produces a wavy line on a straight section of wall. does anyone know a possible reason?

 

Thanks in advance! Cheers

CFFFP_Support_Test.3mf

[Slashee_the_Cow 429]

The problem is in your model:

(enhanced contrast to show the different shading of different faces)

 

The file is also technically invalid, but not bad enough to prevent it from being loaded. That may be the cause of the wavy lines though (as that face is defined as a bunch of columns rather than the simplicity of just using two triangles).

 

What program did you use to create it? SketchUp is sort of considered a running joke about how terrible the files it exports are and Blender (or other mesh-based modelling programs) don't always get it quite right, because it's not what they're designed for. Ideally for structures made of basic shapes like this you would use a CAD program.

[Johannes_m 0]

Thanks a lot! i got it of thingiverse, when i loaded it up in cura and solidworks i didnt notice the model being weird. Since i am comparing different extrusion widths and support settings, these lines didnt appear on the wider  extrusion widths, so i though it would be a slicer thing.

Edited March 19 by Johannes_m