Markforged Introduces 3D‑Printed Copper – Unlocking High‑Conductivity Parts

We’re thrilled to announce the addition of copper to the Markforged Metal X lineup. For the first time, 3D‑printing pure, >99.8% copper is straightforward, enabling the rapid production of parts that demand exceptional electrical and thermal performance—without the high cost or lengthy lead times of traditional manufacturing.

What is Markforged Copper?

Markforged Copper is a near‑pure copper filament that delivers superior thermal and electrical conductivity, coupled with high ductility. It is ideal for components where heat dissipation or electrical connectivity is critical—especially when conventional methods are cost‑prohibitive or impractical. Customers who previously chose aluminum for its machinability can now leverage copper’s superior conductivity with a simple 3D‑print workflow.

For detailed electrical, thermal, and mechanical data, download our copper data sheet.

Copper on the Metal X System

Why we’re excited:

• One platform, no hardware changes. Order a spool, select “Copper” in our cloud‑based slicer Eiger, and start printing. Switching materials takes under 10 minutes.
• Easy to print. The Fused Filament Fabrication process uses a metal‑powder/plastic binder filament, followed by de‑binding and sintering. This overcomes the thermal‑conductivity challenges that hindered copper printing with directed‑energy systems.
• Expanded applications. Copper opens new possibilities for heat sinks, bus bars, custom tooling, and functional prototypes across industries.

Applications

From heat sinks to spot‑welding arms, Markforged customers are rethinking how they produce copper components. Complex internal cooling channels can now be printed directly, eliminating brazing or welding and eliminating weak points.

• Low‑volume production. Print bus bars, heat sinks, or other high‑conductivity parts when tooling costs would otherwise be prohibitive.
• Tooling. Copper tooling, such as spot‑welding arms, benefits from excellent electrical conductivity and dimensional stability.
• Functional prototypes. Test concepts in copper before investing in expensive production tooling.

Conclusion

Copper is now available worldwide for Markforged Metal X users. We can’t wait to see the innovative parts you’ll create. The 3D‑printing platform is reshaping manufacturing—so start exploring copper today.

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