"""Thanks for the recommendations. Rhino created decent curves but some of the detail was highly distorted. Spaceclaim makes some nice 3D PDF's but I'm not sure if I can do a 2D one. I think I just need to slog through it and be patient for MoI3 :)"""

Hi Ostexo, yeah It's true that rhino does not always make a 100% job and garbles some curve now and then but in most of cases it's quite good.
I some cases I will simply redraw a 2d curve in Moi over the flattened version.

Out of curiosity, which vector application do you use?

Marc