Originally Posted by Gordon Johnson
CF tube can be formed curved. There is a type of CF woven cloth that comes in a long "sock" like tube. It can be slipped over a curved mandrel, pulled till it reduces in diameter, and then have the epoxy applied, and the mandrel removed later. I have some of this woven tube cloth. But, it comes in sizes that are way way larger and heavier than when we are talking about, say, 0.5mm rod.
The socks are a braided tube. Great in torsion but not as stiff in tension or compression at pulltruded rod or tube since lots of the fibers are off axis.
I wonder if it's possible to make a die (plate with a tapered hole) and pull epoxy moistened CF tow through to make a rod. The die would be to squeeze out as much resin as possible. Bend it in any shape you want until the epoxy cures.
In the industrial world, I have seen CF tows from 1K (1000 fibers in the strand) up to 72K. Not sure what you can get retail.