Import STEP or IGES file of a 3D wing
 

Hi! Im trying to import a 3D wing model from CATIA V5, i already try with IGS and STEP, but i had problems with both.
1.-With the IGS format the problem is the boolean operation that says that i can't substract a virtual volume from a real volume.
I don't know how to convert the virtual volume of my wing in a real volume.
2.- With the STP format the problem becomes when i try to import the file... GAMBIT send an ERROR that says:
ERROR: Translation requires license feature gem-trans.

Somebody help me please! :(