Btw, in case anyone is wondering why we should bother making carbon fiber CNC components, this clip shows why CF is superior to steel and aluminum for applications where strength and rigidity are important:
I like this clip because it shows a real world example of a steel part vs the same part made out of carbon fiber. It doesn't use theoretical data from charts etc. The CF part is 3 times stronger and noticeably lighter.
As the forces on CNC components come from predictable directions, I think it could be a great application for carbon fiber. This is especially true for diy builds of benchtop high speed machines where there is potentially a need for components that can be easily moved without sacrificing strength or stiffness.