I'm having some issues making spherical boolean cuts on a cylinder. The problem is, that some cuts seem to be inverted, ie. a wall is being created where it should in fact just make a normal cut.
I found a similar bug / issue here:
And one potential workaround, which I will try out next:
However, I wanted to ask, what exactly the problem might be, and why some of the boolean cuts work, and others don't (for instance, just re-positioning the sphere seems to sometimes fix the problem).
If I'd understand the root cause, I'd probably be able to avoid the problem. Furthermore, it seems to me that making spherical cuts seems to cause bugs under some conditions?
OS: macOS 10.14
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16110 (Git)
Build type: Release
Branch: (HEAD detached at 0.18.1)
Python version: 3.6.7
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)
(also tried in Windows)
The example files can be found here:
These are how the cuts look for me: