The Mark One 3D Printer, a product of MarkForged, can print in carbon fiber, fiberglass, Kevlar, and nylon formulations

There aren’t many 3D printing companies that can compete with MarkForged right now. That’s because MarkForged is the first company to incorporate continuous strands of strong, lightweight fiber-based materials, like carbon fiber, Kevlar, and fiberglass, into their printing process.