Hello,

I got the design of a wing, which i need to offset or reduce the curves surfaces by 0.5mm. The original documents comes from autocad, and it created a solid as shown in the picture. However, i tried to offset the profile and then swept cut it and it didnt work, i tried to >intert>face>move>offset and select each of the surfaces but it didnt work either, i tried to make a shell also.

Could some one please enlighten me of how to do that?

Thanks so much!

PICTURE: Sketch9 is the final profile size desired.