10-15yrs ago we could get small panels of CF boards from the aviation service/repair industry, for which Vic was a pretty big player. But these days that industry has died, all gone offshore.
Your best bet for retail quantities is Fibrelyte in UK; they can supply sheets or if you’ve CAD’d a design they can cut it for you too. Either way its not cheap, but given the health hazards with CF dust – I’d prefer to pay with $$, not your lungs.
For other stuff, I’ve been doing my fabrication out of PCB fibreglass.
