In three-point bending, our 3D printed carbon fiber is 8x stronger than ABS and 20% stronger than the yield strength of aluminum.
3D printed carbon fiber is 25x more rigid than ABS and 2x more rigid than the rest of Markforged’s reinforcement fibers.
Strength to weight
Compared to 6061 aluminum, 3D printed carbon fiber has a 50% higher strength-to-weight ratio in flexure and 300% higher in tension.
12.5 kg (27.5) lb) hung from both a 7 g carbon-fiber-reinforced Onyx sample (left) and a 12 g aluminum sample (right).
When To 3D Print With Carbon Fiber
Carbon fiber material is strong enough to replace aluminum 6061 at half the weight; use it when you want superior stiffness and minimal deflection.
- Robotic arms
- Forming tools
- Inspection fixtures
- End use parts
Haddington Dynamics is a company that developed Dexter, a 3D printed robotic arm made almost entirely out of Markforged parts. Reinforced with continuous carbon fiber filament material, the arm is stiff and lightweight enough for the robot to have a precision of 50 microns (about 0.002″).