I use the Part-Utility "Shape Builder" to create shapes from a couple of edges that form a closed wire, using the option "Face from edges". As you can see, I successfully started with a small area (dark gray) and then I selected the next one (green edges):
But when clicking "create", the shape is not as expected:
Since the created shape is clearly outside the bounding edges, I dare to claim this is a bug?
Moreover, when trying to create shapes from other areas like that one (that seem to be quite similar to the above):
... this results in various error messages in the status bar, like
combined with a white window freezed application, or
What am I doing wrong? In fact, I gave up using this method, as I even had to make the areas very much smaller to avoid problems. Currently I create everything new from scratch using a different method (by revolving a shape). Nevertheless I am quite fascinated by the possibilities of FreeCAD and would like to learn how to use the Shape Builder correctly, as it seems to me a very useful tool, if only I would know how to use it correctly.
OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.16.6704 (Git)
Build type: Release
Python version: 2.7.8
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17