Thanks Abdullah. Opened issues:

https://www.freecadweb.org/tracker/view.php?id=3470
https://www.freecadweb.org/tracker/view.php?id=3471

Hi Abdullah, I'm playing around with this but I notice some issues. Perhaps there have been some regressions? OS: Ubuntu 17.10 Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.17.13424 (Git) Build type: None Branch: master Hash: 597dbf60947067852268033c32d6b78ac9ef280c Python version:...

Regarding the crash, should I report that to Mantis? If you refer to this: Also noticed another bug here: If you open Sketch001 and delete the line segments, freecad crashes. Worth reporting that too? The problem is that in the original file you speak of, there is no line segment in Sketch001. I th...

That is indeed an impressive visualization! Thanks everyone. In this case, I was able to resolve things by just padding a sketch. I guess if that were not possible (for example, because the profile were not flat on the sides), would the best thing be to set the path at the other end of the rectangle...

chrisb wrote: ↑Tue Mar 13, 2018 4:26 pm]That's how I made my proposal: https://forum.freecadweb.org/viewtopic. ... 20#p220298 .

Yes, of course, apologies.

Hi Gene, I have updated but I still see the crash. Was it fixed in the last 3 days? Still observed in 0.17~alpha1+git201803101510~ubuntu17.10.1. OS: Ubuntu 17.10 Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.17.13387 (Git) Build type: None Branch: master Hash: c5f4079252b11e3c54cd6...

Could the Thickness tool be used to create the cookie cutter effect? Seems like just scaling the shape is not going to give you what you want, since you want the thickness to be applied normal to each edge.

Looking at this more closely, I'm not sure the problem is with the self-intersection. If you change the circle arc to a construction line (so that the sweep path is just an ellipse), the resulting shape is still rejected by Part Check Geometry. It says two faces (the sides) are not closed and have s...

Also noticed another bug here: If you open Sketch001 and delete the line segments, freecad crashes. Worth reporting that too?

Makes sense. Worth reporting to Mantis?