Rhino Marine

I am trialling the free download version of Rhino Marine in Rhino 3 and have come to a snag.
I started with the Planing Hull Wizard to produce a simple double chine hull, then modified it to the final shape (all good).
The problem is that the three areas of topside plate, chine plate and bottom plate are amalgamated into one surface.
How can i split / explode this surface at the chines to allow me to continue the design and unrol the three surfaces.
Thanks in advance.

 

Try selecting the surface and exploding

If that doesn't work split the surface at isocurve.

 

please try to update ur rhino 3 to version 4. Older version of Rhino get problem to Rhinomarine specially if u download rhinomarine vesion 4.0.3 demo.
may be i think u may solve ur problem in updated version.

thanks

 

Thanks Mike
Exploding did not work but spliting at isocurve worked well