Generating surface or body from polylines

Rhino
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Hi everyone. Im new to Rhino but have taken on quite a large challenging project as my first time with no real help or guidance. Im trying to export this as a Parasolid or step file into power mill so I can CNC it. How do I generate a surface or body from these polylines? As you can see there is a number of points on the polylines. Would anyone please be able to help?

Any help would be unbelievably appreciated as I have taken quite some time into trying to do this but not break through yet and it has to be possible.

image
image1545Ă—871 264 KB

Scaled M3.3dm (14.3 MB)

2

Where’s that data from?

Assuming you don’t mind changing those curves slightly, it might help to rebuild them with less control points…your resulting surfaces might be cleaner.

Maybe @Rhino_Bulgaria has some car modelling tips for you.

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