I tried for hours now, but I cannot create a closed solid from polysurfaces on this specific object (see attachment). Something is wrong with the blending at the rounded tip.
On a similar object it worked for some reason but this one makes me desperate.
Hi Tim - look very closely at the trailing edges of the wing right where the tip surface joins it - set the view to a parallel camera so that you can zoom way way in.
I’ll see if I can make you an example of a different way to do this- hold on a bit.
@tim.karsten see the attached file - this shows the surface layout I’d use, but note your surfrace gets pretty skewed out at the wing tip on the leading edge - I’d try to find a way to make this wing so that the surface isos are more on line with the shape and not twisted.