A microtube heat exchanger was recently produced using a high‑strength nickel alloy often found in aerospace applications. At first glance, it’s a compact metallic block, but inside, air travels through an intricate network of tiny tubes that help regulate cabin temperature.

What makes this part truly impressive is not just what it does, but how it was made. Its geometry is so complex that traditional manufacturing methods and even many powder bed fusion systems wouldn’t have been able to produce it. Instead of redesigning the part to fit the limits of manufacturing, Intergalactic decided to push those limits.

They turned to the Velo3D Sapphire XC system, whose “non‑contact recoater” technology allowed them to print delicate internal channels and thin‑wall structures without needing heavy redesign work. In other words, engineers could keep the geometry they actually wanted, not the geometry that was easiest to manufacture.

Thanks to this, the team went from finalizing the design to holding a printed part in their hands in just one week. A huge advantage when you’re working toward tight testing deadlines for an aviation program.

This project is a clear example of how choosing the right 3D printing technology doesn’t just make complex components possible, it can drastically shorten development timelines.

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