wmayer wrote:we need a way to set somehow the constraint that the line has constant length.
I thought of making a Part Sweep instead of a ruled surface, using one of the arcs as path, and 3 equal length Draft Lines as sweep profiles.
I had previously used only two lines (start and end), but it didn't produce a correct shape.
With three lines, when I create the sweep, POOF! Instant crash.
(If I make the arc in a single segment instead of two, there's no crash, but the resulting shape is wildly wrong)
Going the other way, selecting the sketches as profiles and one of the Draft Lines as path, the created shape is not right.
OS: Ubuntu 14.04.5 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.16.6703 (Git)
Build type: None
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17