I like Curvy3d a lot!
I am on version 3 right now, I think I am eligible for 4 but need to find out how to upgrade.

Anyway this is a question or rather feature request @ Simon

I am sure you are aware of a number of papers and demos/programs dealing with sketched based 3D, like
Teddy or RigMesh or ShapeShop.
There is one called FiberMesh and I think they really nailed the workflow on that one. BUT with two major
exceptions: 1) it is buggy as hell 2) no mirroring
I think this stuff must be related to what you are doing but not sure to what degree. So I don't
have any idea how difficult it would be to integrate. But it would be such a fun and fast workflow
and I think there is no software that does this today in a reliable way.
At least I couldn't find any.
Is there any chance you could implement something like this in a later version of Curvy3d?
For everybody's interest:
Here is the FiberMesh-website with pdf, videos and downloadable demo (needs 32-bit Java)
https://www-ui.is.s.u-tokyo.ac.jp/~take ... index.html
Video on YouTube:
https://www.youtube.com/watch?v=W0XGkS7zebo
Overview of sketch-based 3d programs on medium:
https://medium.com/the-art-squirrel/ske ... c14749c8e2
Thank you and blessings!