Support interface ironing does not generate with Tree Slim/Strong/Hybrid style supports #2098

New Issue

MrUnknownDE · 2026-04-05T23:40:51+02:00

MrUnknownDE commented

2026-04-05 23:40:51 +02:00

Originally created by @cheatreal321 on 9/22/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1-beta

Operating System (OS)

Windows

OS Version

Windows 10 Enterprise LTSC

Additional system information

No response

Printer

Qidi Tech X-Max 3 / Prusa XL

How to reproduce

Load any model with overhangs or floating regions that need supports
Enable supports and choose "Tree (auto)" with sufficient threshold angle
Select "Tree Slim", "Tree Strong", or "Tree Hybrid" supports
Enable "Ironing Support Interface"
Slice model to see that no ironing is happening compared to when using "Organic" style supports

Actual results

Example of Tree Hybrid supports generating without any support interface ironing

Expected results

Meanwhile Organic supports correctly generate with support interface ironing at the exact same layer

Project file & Debug log uploads

project file and debug log.zip

Checklist of files to include

Log file
Project file

Anything else?

On the off-chance that this is just not implemented yet rather than a bug, I would highly suggest that the "Support ironing" category disappear from the UI for the time being when a style of support that is not yet compatible is selected. Then at the very least other users won't waste their time trying to get it to work like I did.

*Originally created by @cheatreal321 on 9/22/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1-beta ### Operating System (OS) Windows ### OS Version Windows 10 Enterprise LTSC ### Additional system information _No response_ ### Printer Qidi Tech X-Max 3 / Prusa XL ### How to reproduce 1. Load any model with overhangs or floating regions that need supports 2. Enable supports and choose "Tree (auto)" with sufficient threshold angle 3. Select "Tree Slim", "Tree Strong", or "Tree Hybrid" supports 4. Enable "Ironing Support Interface" 5. Slice model to see that no ironing is happening compared to when using "Organic" style supports ### Actual results #### Example of Tree Hybrid supports generating without any support interface ironing ![Image](https://github.com/user-attachments/assets/5a0d8a28-3f9a-4a9e-aa9c-130f057b5d52) ### Expected results #### Meanwhile Organic supports correctly generate with support interface ironing at the exact same layer ![Image](https://github.com/user-attachments/assets/d92d4601-44dc-41d4-b19f-517884fb7ebe) ### Project file & Debug log uploads [project file and debug log.zip](https://github.com/user-attachments/files/22478995/project.file.and.debug.log.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? On the off-chance that this is just not implemented yet rather than a bug, I would highly suggest that the "Support ironing" category disappear from the UI for the time being when a style of support that is not yet compatible is selected. Then at the very least other users won't waste their time trying to get it to work like I did.

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Reference: github/OrcaSlicer#2098