Arachne generator causing missing layer lines on thin parts #2309

New Issue

MrUnknownDE · 2026-04-06T03:40:36+02:00

MrUnknownDE commented

2026-04-06 03:40:36 +02:00

Originally created by @mujido on 9/1/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.0

Operating System (OS)

Linux

OS Version

Debian 13

Additional system information

No response

Printer

Prusa Mk3S

How to reproduce

Open the attached 3MF file
Slice the file at 0.3mm or smaller layer height using Arachne

Actual results

Grills are partially missing. Depending on layer height chosen, more or less of the grills will be missing.

Expected results

Grills should continue all the way from the bottom to the top of the cutout area as visible in the model.

Project file & Debug log uploads

Bambu+Lab+AMS+Rear+Dessicant+Tray+v3.2+3MF.zip

Checklist of files to include

Log file
Project file

Anything else?

*Originally created by @mujido on 9/1/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.0 ### Operating System (OS) Linux ### OS Version Debian 13 ### Additional system information _No response_ ### Printer Prusa Mk3S ### How to reproduce 1. Open the attached 3MF file 2. Slice the file at 0.3mm or smaller layer height using Arachne ### Actual results Grills are partially missing. Depending on layer height chosen, more or less of the grills will be missing. ### Expected results Grills should continue all the way from the bottom to the top of the cutout area as visible in the model. ### Project file & Debug log uploads [Bambu+Lab+AMS+Rear+Dessicant+Tray+v3.2+3MF.zip](https://github.com/user-attachments/files/22082377/Bambu%2BLab%2BAMS%2BRear%2BDessicant%2BTray%2Bv3.2%2B3MF.zip) ### Checklist of files to include - [ ] Log file - [x] Project file ### Anything else? <img width="899" height="544" alt="Image" src="https://github.com/user-attachments/assets/81fe5758-dcf4-4204-83bc-d04d3a12363d" />

MrUnknownDE closed this issue

2026-04-06 03:40:36 +02:00

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Notifications

Due Date

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Reference: github/OrcaSlicer#2309