how can I prevent this residue (marked in the 2. picture) from occurring?
Bildschirmfoto_2023-06-27_14-12-50.png
Bildschirmfoto_2023-06-27_14-04-18.png
test1403.FCStd
OS: Ubuntu 20.04.6 LTS (XFCE/xubuntu)
Word size of FreeCAD: 64-bit
Version: 0.21.0.33345 (Git) AppImage
Build type: Release
Branch: master
Hash: a3c4f4bb01f5201daf666852444a8f9c5adbda8d
Python 3.10.11, Qt 5.15.8, Coin 4.0.0, Vtk 9.1.0, OCC 7.6.3
Locale: German/Germany (de_DE)
Installed mods:
* Curves 0.6.12
Length of shortest edge of CutVolume is 749.9781255255435.
Minor radius of Ellipse is 750.
ok, if i can change that, i would have a workaround. Is it possible?
Bildschirmfoto_2023-06-27_14-34-35.png
Why don’t you change the Last Angle of the Ellipse?
Yes, that’s possible, but it will later produce odd dimensions when dimensioning
the file is in the first post
The provided file does not contain dimensions.
CutVolume has no history for some reason. Maybe the result of another ‘workaround’? 
no, but if i change the geometry i have different measurements without testing it
Without more info this is completely useless.