Bridge counterbore breaks when adding modifier geometry #98

New Issue

MrUnknownDE · 2026-04-05T16:18:26+02:00

MrUnknownDE commented

2026-04-05 16:18:26 +02:00

Originally created by @julian-weinert on 3/28/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.2

Operating System (OS)

macOS

OS Version

macOS 15

Additional system information

No response

Printer

Anycubic Kobra 2 Pro

How to reproduce

Add part with counterbore hole
Enable "Bridge counterbore holes"
Set to "Sacrificial layer"
Add modifyer and have it touch the part
Change any setting (even one that doesn't cause any change)

Actual results

The sacrificial bridging layer will have the extended hole in it

Expected results

A full sacrificial bridging layer

Project file & Debug log uploads

testproject.3mf.zip

Checklist of files to include

Log file
Project file

Anything else?

For this test project I have changed "Fuzzy skin" from "painted" to "disabled" to showcase the most extreme situation. I have not painted any fuzzy skin, so the change should not influence the print in any way.

It does not matter which setting I change in what way, as soon as any change is done using modifier geometry the bridging layer breaks.

*Originally created by @julian-weinert on 3/28/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.2 ### Operating System (OS) macOS ### OS Version macOS 15 ### Additional system information _No response_ ### Printer Anycubic Kobra 2 Pro ### How to reproduce 1. Add part with counterbore hole 2. Enable "Bridge counterbore holes" 3. Set to "Sacrificial layer" 4. Add modifyer and have it touch the part 5. Change _any_ setting (even one that doesn't cause any change) ### Actual results The sacrificial bridging layer will have the extended hole in it ### Expected results A full sacrificial bridging layer ### Project file & Debug log uploads [testproject.3mf.zip](https://github.com/user-attachments/files/26326894/testproject.3mf.zip) ### Checklist of files to include - [ ] Log file - [x] Project file ### Anything else? For this test project I have changed "Fuzzy skin" from "painted" to "disabled" to showcase the most extreme situation. I have not painted any fuzzy skin, so the change should not influence the print in any way. It does not matter which setting I change in what way, as soon as _any_ change is done using modifier geometry the bridging layer breaks. <img width="1790" height="1666" alt="Image" src="https://github.com/user-attachments/assets/00a4204d-ae6a-4e13-9708-71aedf886688" /> <img width="1568" height="1566" alt="Image" src="https://github.com/user-attachments/assets/6647d1f8-1736-4b49-8edf-6af3dddf7e84" />

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 labels 2026-04-05 16:18:26 +02:00

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Reference: github/OrcaSlicer#98