For a friend I'm making a mold for this fishing lure. It has been 3d scanned and recreated in solidworks. The scales however are proving to be a problem. I was able to get this done outside of solidworks. Using a cam package I can project a 2d sketch onto a surface and machine that path with some given offset. From that I can only get an stl model. I would like to do this all in solidworks. Can anyone suggest a good approach?

Attached are a 3d scanned image, The cam generated model, a scaled down solidworks part to test.

thanks

jim