My test shows Heidi's method has a limitation. The horizontal angle must be within a range of 31-95 degree.
And I also suspect unknown defect in your model, for example,
I simplified OP's model,even removed a tiny edge (about 80um long.)freecad-heini-1 wrote: ↑Mon Jun 29, 2020 12:13 pmhttps://forum.freecadweb.org/viewtopic. ... 42#p412442
So simple just impossible. Thank you.
Quite same feeling, thank you.
Thank you. Waiting for merged build.