Internal ribs of the prime tower are always enabled #669

New Issue

MrUnknownDE · 2026-04-05T16:25:26+02:00

MrUnknownDE commented

2026-04-05 16:25:26 +02:00

Originally created by @Felix14-v2 on 2/21/2026

Description

Internal ribs are always generated, ignoring the corresponding setting.

To reproduce

Add at least 2 materials to a project
Add a model and paint it
Enable prime tower
Make sure you have internal ribs disabled
Slice the model and see the internal ribs inside the tower

Expected results

From Bambu Wiki:

Internal ribs enabled	Internal ribs disabled

Actual results

Internal ribs enabled	Internal ribs disabled

Additional

I have searched the existing issues
OS Windows 11
OrcaSlicer 2.3.2-dev a81537f4 (> beta 2)
Project file: #12399.zip

*Originally created by @Felix14-v2 on 2/21/2026* ### Description Internal ribs are always generated, ignoring the corresponding setting. ### To reproduce 1. Add at least 2 materials to a project 2. Add a model and paint it 3. Enable prime tower 4. Make sure you have internal ribs disabled 5. Slice the model and see the internal ribs inside the tower ### Expected results From [Bambu Wiki](https://wiki.bambulab.com/en/software/bambu-studio/parameter/prime-tower#internal-ribs): | Internal ribs enabled | Internal ribs disabled | |:-:|:-:| | <img width="1301" height="723" alt="Image" src="https://github.com/user-attachments/assets/596a0f19-c0b2-4b49-91a4-12559c8135c5" />| <img width="1310" height="765" alt="Image" src="https://github.com/user-attachments/assets/a8278609-a59d-4902-ba71-5055e89e8640" /> | ### Actual results | Internal ribs enabled | Internal ribs disabled | |:-:|:-:| | <img width="2560" height="1600" alt="Image" src="https://github.com/user-attachments/assets/7ec42e0a-9f75-41c7-938e-e1684b53a7d7" /> | <img width="2560" height="1600" alt="Image" src="https://github.com/user-attachments/assets/8d92a815-3669-42f3-a72e-79a2abe4f70c" /> | ### Additional - [x] I have searched the existing issues - OS Windows 11 - OrcaSlicer 2.3.2-dev a81537f4 (> beta 2) - Project file: [#12399.zip](https://github.com/user-attachments/files/25457438/12399.zip)

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Reference: github/OrcaSlicer#669