Hi Andrei,

> Michael how it works? I tested it and it creates very small profiles.

Every edge has both a 3D curve piece to it which you normally see on the screen, but also in addition to that a 2D curve component for how the edge maps to the UV parameter space of the surface. This script extracts out the UV space curve as a regular curve object.

The UV space curve will be inside of the UV domain rectangle of the surface, it's not unusual for that domain to be a 0 to 1 unit square.

- Michael