Hi, 

I am trying to convert a part to IGES. When I do I get the attached error message stating about the translational error. If I click ok it then creates the file, but with a missing surface(s). Basically I am designing a wind turbine blade and it is to be analysed so for that, I need it in IGES form. But the whole airfoil part seems to be disappearing in the igs format.

Any help would be really appreciated.