How to create this contour form ?
From:
Frenchy Pilou (PILOU)
16 Feb 2021 (20 of 21)
10161.20
You can also consider SubDiv by Max Smirnov :)
http://moi3d.com/forum/index.php?webtag=MOI&msg=9689.1
Not exactly what do you want but...
Volume must be only external surfaces trimed without nothing inside!
EDITED: 16 Feb 2021 by PILOU