Hi lyes, those movies are really great!

Very cool and creative use of the toolset, using blend bulge to form that ridge style surface! Really your video shows a great command and familiarity with the toolset.

I saw a couple of things in there that I will probably be able to smooth out pretty soon, like it recently discussed elsewhere trying to avoid breaking edges into an extra piece on the seams of cutting objects, also I've been thinking of doing a better job of the default extrude direction on non-planar curves, instead of just going in Z I'll do a best-fit plane to the curve and use the world axis direction that is closest to that direction instead of just Z, that would remove one step there.

I like seeing videos of a session like this, it gives me some ideas and sometimes just reminds me of some stuff that I've been meaning to do to clean some more stuff up to make it a bit easier yet...

Thanks!

- Michael