importing design from Rhino into maxsurf??

I have designed a 11.5m offshore power boat in Rhino4, but I am having issues putting it into Maxsurf 13 to help with hydrostatics and loadcases can any one offer any advice?? it will just about do it if I run it through solidworks, but this messes up the axis as solidworks Z axis is vertical.??

 

In general, for CAD programs, the vertical axis is always the Z axis.
If you draw the Rhinos model with vertical Z axis, you may not have problems exporting the file to any other CAD program.

 

when u export from rhino as igs format, you can change the correct axis to maxsurf format.
or rotate the model in rhino to match with maxsurf axis system, then import the *3dm file in maxsurf

 

Importing * 3dm files directly to MaxSurf may experience some problems, especially when trimmed surfaces exist in the model. It is much safer to create a .igs file from Rhino and then import it into MaxSurf. At that time, in fact, you can indicate the shafts to be adopted by MaxSurf.