The second is continuous fibre. This is where long strands of fibre like carbon fibre, fibreglass or Kevlar are mixed/ ironed in with a plastic filament, like PLA, ABS, Nylon, PETG and PEEK during the printing process. Parts 3D printed with continuous fibre are extremely lightweight, yet as strong as some metals.
Companies including NASA, Google and Ford are now creating parts 50x faster and up to 23x stronger than ABS, using Markforged’s continuous carbon fibre industrial printer platform.