I've done a work for my sister, jewlery in carbon fiber plate.

I’ve done a work for my sister, jewlery in carbon fiber plate. It was cutted with a special mill with diamond cover (expensive, but it works really well) I can do this kind of works. They are great, aren’t they?
http://o3ozono.com/en/mas-bisuteria-en-fibra-de-carbono/

Very nice. Can you tell us more about carbon fiber cutting setups?

Sure, first, you need an special mill, with diamond coating. Depending on diameter, the cutting conditions can change. But for this case, are these:
mill Ø3mm, cutting depth 2mm, feed 350mm/min, 20.000rpm,