A new nozzle for FFF 3D printers has been announced by fibtip, and it seems to have all the right characteristics.
abrasive
Zaxe Releases Three New 3D Printers
Zaxe’s three new 3D printers address different markets.
Really, How Bad Are Abrasive Filaments For Your 3D Printer Nozzle?
What kind of damage do carbon fiber filaments do to a 3D printer nozzle? How fast does damage occur? Experiments show a surprising result.