Rhino to AutoShip

i am perfect in modeling using Rehino 3d, so I made the hull in rhino but when i export it to autoship as a DFX file, the exporting procces goes well, and auroship could open the file, the problem appear when autoship start the hydrostatic calculation. it gives a wrong resultes
why?
what is the true method to export from rhino to autoship
i need help plz

 

Hisham,
Export as IGES from Rhino - it has always worked for me.
Steve

 

Thanks Steve,
it works but Autoship gives me all mass, Coefficients and Ratios with a negative sign (-)
why?
and how can i fix this problem?
plez help me

 

ok.... i get the solution..
it is to easy , i have to reverse the direction of each serface its face is inboard, all surfaces should face the out board direction
it works correctly

 

Good on you, Hisham. That is the way to REALLY get to understand software - try something, have it fail, and then figure out how to get around any short-comings.

Steve