Extruded Cutout Incorrect work

[free777cat]

Describe your issue

 Extruded Cutout    Incorrect work

FreeCAD version info + SheetMetal WB version

[code]
OS: Linux Mint 22 (MATE/mate)
Word size of FreeCAD: 64-bit
Version: 2024.1006.0.14555 (Git shallow) AppImage
Build type: Release
Branch: (HEAD detached at 20241003stable)
Hash: 8058dcf52c2661edabf36d8147d5b8a187378d2d
Python 3.11.9, Qt 5.15.13, Coin 4.0.1, Vtk 9.2.6, OCC 7.7.2
Locale: Ukrainian/Ukraine (uk_UA)
Installed mods: 


  * sheetmetal 0.5.6

[/code]

Put here any screenshots or videos (optional)

Incorrect_work.zip

[shaise]

@sheetmetalman , can you take a look?

[sheetmetalman]

Yes! As soon as possible.

[sheetmetalman]

Hi!

As I understood, the problem is that the result geometry is entering the sketch extrusion zone, as show in the image below.
But the correct geometry should be the second image.

Looking other software (SolidWorks) at how they deal with, I find they have the same issue, BUT they implement a function to resolve this. Solidworks calls it "Optimize geometry". The below images and video show what happen in this case in SolidWorks.

From where I take the pictures above: https://www.youtube.com/watch?v=_VdK-DPmJQo and https://www.javelin-tech.com/blog/2017/01/solidworks-2017-normal-cut-optimize-geometry/

I implement the same thing. Theres gonna have a property where the user set to true for "improve cut". But I also add another property to set the quality of this cut geometry improvement, as show in the video and the images below.

improvecut.mp4

This function need improvements yet. Next step is to find a way to smooth the edges before the cut operation in the code.

[luzpaz]

Version: 2024.1006.0.14555 (Git shallow) AppImage

An aside, @free777cat where did you install this version of FreeCAD from ?

[free777cat]

https://github.com/realthunder/FreeCAD/releases