I'd like to know Rhino/spline export helps out. According to Antoine on the List, no two modeling programs will interpret and import a given format the same way. He even offered that 3D Studio can export to a '3ds' format (not the native creation/modeling format) and will have quirks when it imports the 'saved as' version of a 3ds format right back into the program. I haven't used it so I don't know. I try to stay in the native modeling program when possible so almost all of my work is created in Carrara now. (Except for precision shapes and paths which I create in Adobe Illustrator and import) Mark