Problem switching GH to 3D printing

Good evening,

I created a vase with fins/wings…i dont’t know the good word…
The design looks good but when I switch to
3D printing, the internal tube is made but not the
fins/wings !
conception problem but I don’t understand …i try mesh but i don’t know…
Any idea…thanks for your help…
A.
12.gh (2.3 MB)

i’m so stupid…The thickness’s wings was too small…
So there isn’t pb
Enjoy