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Overhang threshold angle + tree support does not work properly with values below 20 #10553

@NerdFan

Description

@NerdFan

Bambu Studio Version

2.6.1.55

Where is the application from?

Bambu Lab Official website

OS version

OS: Windows 11

Additional system information

No response

Printer

Bambu Lab P2S

How to reproduce

  1. Use some shape with angle - used overhange threshold test from here: https://makerworld.com/en/models/2350066-fast-support-threshold-overhang-test
  2. Enable support
  3. Set "tree(auto)" as Type
  4. Set "Default" as Style
  5. Set "Threshold angle" less than 20. Used any value between 1-20 and got exactly same result.
  6. Clear "Remove small overhangs" checkbox
  7. Run "Slice plate"

Actual results

Check generated tree - it supports 70 and above angle even it should not by "Threshold angle" value.
Compare with some other slicer - used Orca Slicer. Other slicer acts as expected - less value = higher angle to start support.

Expected results

Value below 20 should continue to act as it worked with 20-100.

Project file & Debug log uploads

Overhang+Test+Support+Threshold+10+to+80+Degrees_after_slice.zip

Checklist of files to include

  • Log file
  • Project file

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