Critical conflict between drawn supports and shrinkage compensation

[flugegegeheimen]

OrcaSlicer Version

1.9.0

OS version

Windows 10

Additional system information

i7 9900k titan rtx ram 32

Printer

any printer

How to reproduce

1. enable support, any manual mode, snug style for example
2. draw support on any inclined surface
3. shrinkage 100 in plastic profile
4. slice and see
5. change shrinkage to any instead 100 (99,4 for example)
6. slice and see

Actual results

(sorry, I'm writing via Google Translate) For a long time I tried to understand the reason for the defects on my printouts made from materials with high shrinkage...

An illustration of how the supports were drawn by hand and what I expected to see:

If you change the compensation value instead of 100% (for example, to 99.4 as in my screenshot), then the supports are built incorrectly:

I received a lot of defects because of this bug.

Expected results

If you slice the g-code without using shrinkage compensation in the plastic profile, then everything works as normal:

Project file & Debug log uploads

test_shrinkage.zip

Checklist of files to include

• [ ] Log file
• [ ] Project file

[atl285]

@flugegegeheimen, nice find. I often had problems with manual support and use mainly filament with shrinkage compensation. But I never thought, that this can be a reason for this. 😮

[github-actions[bot]]

Orca bot: this issue is stale because it has been open for 90 days with no activity.

[github-actions[bot]]

Orca bot: This issue was closed because it has been inactive for 7 days since being marked as stale.

[atl285]

Is it solved?