Distortion of wall trajectories

[Dogm]

Cura Version

all 5.x.x, include 5.5.0 beta 1

Operating System

Windows 10/11

Printer

Ultimaker S5/ All

Reproduction steps

RIGHT_part_middle_ultimaker_s5_rotated.zip

1. Ultimaker S5 printer profile
2. Layer Profile Fast (0.2 mm)
3. load model
4. slice

see walls and defects on external side of model

Actual results

Defects appear at the same height, regardless of repeated slicing

Same defects on Prusa slicer

Expected results

Have no defects on Simplify 3D

Add your .zip and screenshots here ⬇️

Model: RIGHT_part_middle_ultimaker_s5_rotated.zip

Cura 5.5.0 beta 1 screen with bug

Prusa with bug

Simplify 3D without bug

[Dogm]

Another example of this problem on another model

Segment_part_middle_ultimaker_s5_rotated.zip

Same scenario for reproduce

[MariMakes]

Hi @Dogm,

Welcome to the UltiMaker Cura Github 🚀 Thanks for your report 👍

I took a look at it in Cura 5.5 and I can reproduce your issue. It reminds me of

but that one should have been resolved. here: https://github.com/Ultimaker/CuraEngine/pull/1927 I'll bring it up to the team to see what they can do to improve it.

Fingers crossed 🤞

[MariMakes]

Hi @Dogm,

We discussed your issue with the team. This seems to be introduced by the Arachne Engine in Cura 5.0. ​​​​​​There might be settings that you can change to improve this behavior. You can read more about them here: https://support.ultimaker.com/hc/en-us/articles/4792077687068

This is still something we want to resolve, so we've added a ticket to the backlog with the intent to improve this. For internal reference CURA-11167

Thanks for the report! 👍

[Dogm]

Hi @MariMakes

Thank you for researching this issue. I tried to change all the settings from that article and did not get the result of getting rid of this problem, I decided to write here. I hope that you will be able to correct the generation of wall trajectories in the future

Thank you so much for working with problems 👍

[Dogm]

Hi, @MariMakes

Have same problem with Cura 5.7.0 but this problem does not exist if you use Surface Mode = Surface

Mode = Normal

Mode = Surface

Hopefully this will help in solving this problem....