Arachne rough surfaces on big sweeping curves #280

New Issue

MrUnknownDE · 2026-04-05T16:19:30+02:00

MrUnknownDE commented

2026-04-05 16:19:30 +02:00

Originally created by @Bad-Hackerman on 3/17/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.2-beta2 (but have been having the issue since maybe before 2.3.0)

Operating System (OS)

Windows

OS Version

W11

Additional system information

No response

Printer

Elegoo neptune 4 plus

How to reproduce

Import a model with big smooth curves (like the one attached)
Activate arachne wall generator

Actual results

The wall has weird lines going out that ruin the surface quality of the finished print, which does not happen with the classical wall generator

Expected results

smooth wall

Project file & Debug log uploads

Fingerboard bottom.zip

Checklist of files to include

Log file
Project file

Anything else?

Had a discussion about this a long time ago on the discord server but got busy and never created the bug report.
https://discord.com/channels/1137181739773603922/1383816332511936522

*Originally created by @Bad-Hackerman on 3/17/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.2-beta2 (but have been having the issue since maybe before 2.3.0) ### Operating System (OS) Windows ### OS Version W11 ### Additional system information _No response_ ### Printer Elegoo neptune 4 plus ### How to reproduce 1. Import a model with big smooth curves (like the one attached) 2. Activate arachne wall generator ### Actual results The wall has weird lines going out that ruin the surface quality of the finished print, which does not happen with the classical wall generator ### Expected results smooth wall ### Project file & Debug log uploads [Fingerboard bottom.zip](https://github.com/user-attachments/files/26070573/Fingerboard.bottom.zip) ### Checklist of files to include - [x] Log file - [ ] Project file ### Anything else? Had a discussion about this a long time ago on the discord server but got busy and never created the bug report. https://discord.com/channels/1137181739773603922/1383816332511936522

MrUnknownDE added the bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug labels 2026-04-05 16:19:31 +02:00

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Reference: github/OrcaSlicer#280