Unwanted supports generated, 'paint on support blockers' and 'support on build plate only' ignored

[HeliX-0]

Bambu Studio Version

1.9.5.51

Where is the application from?

Bambu Lab github releases

OS version

Windows 11

Additional system information

No response

Printer

Bambu Lab X1C

How to reproduce

Reproduction

1. Open the attached .3mf-project
2. Slice the plate
3. Check slicing results in layers 19+20 to see unwanted support

Screenshots showing the issue

• manual support paints:
• slicing result with supports (including support material crawling into holes)
• used settings:

Actual results

Unexpected/unwanted support (using support material) is generated in layers 19+20. The support material is used as an interface layer for an anwanted support base that 'crawls' into the holes

Expected results

Support material should only be used in layer 74+75 for supporting the internal ceiling

Project file & Debug log uploads

Slicer_Test v1.zip

Checklist of files to include

• [ ] Log file
• [X] Project file

[tangketan]

This is the intrinsic defect of normal support of rasterizing the overhang areas into grid-like regions. Fixing this issue is difficult and unnecessary:

1. it means changing a lot to the normal support, and many other cases may be affected;
2. hybrid support support can take over in your case