How can I model from a 2D format to 3D?

I have used the extrusion tool to add depth to my 2D drawings, but I do not know how to complete the modeling throughout in 3D Rhino 5.0. The drawings as an extruded straight line look great in a geometric configuration, and when I render the model looks fairly good. But, I am attempting to model 3D within boating & yacht design, and am a little on the frazzled side. Can anyone suggest an alternate route, please. Thanks kindly.

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4 Answers

Try youtube and search for "surface in rhino"
You will get everything

 
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salut; utiliser outille pour surface pointer sur decaler une surface .

 
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