Try this:
Growing_line_with_friction_V1.gh (55.2 KB)
In the other post I didn’t use Collider goal component (I was being stupid)
With Collider shapes are much better than with sphere collide.
Still, I used the same sphere collide to make a “friction” between the curves, maybe it’s good… i don’t know… (you can turn off the Collider that is using points if you want)
Many tweaks are still possible.
I think bending resistance should be dependent of the stretching of the curve (like a balloon inflated), but maybe i’m wrong.
To use more curve/points than this or by adding more complex logic you need to go to scripting.
(Is this the new “voronoi”? …)