Engraved lines on non-planar surfaces

Hi to all forums, i'm a manufacturer of resin accessories for modellers (mainly aircraft) and use SW with good results, I would like to in the future also design and build complete models of aircraft in scale but until now have not been able to find a system to track the features engraved panel lines with precision on complex surface like the fuselage, I enclose some CAD images of mainstream manufacturers, for example, I know that using other types of software such as NX or Catia and so I think that SW is not suitable for this purpose. The final work, as all of my products, it will be printed on rapird prototyping machines.

Thanks for your patience.

http://www.videoaviation.com/wp-content/gallery/temp/eng001.jpg

http://www.videoaviation.com/wp-content/gallery/temp/eng002.jpg

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