I've got some projects that I need to cut some of these materials for. I'm not sure which ones yet, but I know carbon fiber will be in there somewhere.
I talked to a waterjet guy and he says the jet will leave frayed edges. I had a bunch of blank PCB's that I milled for different things and they cut well and had nice edges on them.
I've never had a piece of Cf I felt like wasting as a test. How well does that work out? Do the edges have lots of strands, or does it cut pretty clean? Is there a chart that shows speeds and feed suggestions for it?
This is probably a not even a question thats worth asking. I'm falling asleep as I type this. So I apologize if it makes no sense.
I don't have a lot of direct experience milling carbon fiber, but I do know it's extremely hard on tooling. You need carbide, and it needs to be extremely sharp carbide- that is, honed solid cutters, not insertable/indexible.
The CF is incredibly abrasive on tools- and on machine ways, by the way, take precautions there, too- so the carbide is the only thing that will hold up for a reasonable amount of time.
They make special bits for milling CF and PC boards, generally high rake and honed very sharp. If your regular suppliers don't have any on hand, try a big woodworkers supplier- they'll generally have nearly-identical carbide cutters for wood routers that should hold up for a short run.
If milling, use flood coolant. If for some reason you're forced to run it dry, set up a powerful vacuum system with HEPA-grade filters. The dust is nasty and toxic.