Metal 3D printing has transformed the way engineers think about manufacturing. Instead of cutting material away from a solid block, parts can be built layer by layer, making it possible to create lightweight structures, intricate internal channels, and geometries that would be impossible with traditional machining. From aerospace components to medical implants, the technology has enormous potential.

But one major challenge remains.

Many metal parts require temporary support structures during printing to prevent them from collapsing or warping under extreme temperatures. While these supports are essential during the manufacturing process, removing them afterward can be expensive, time-consuming, and can even limit what engineers are able to design.

In this episode of Breakthrough Broadcast, I sit down with Dr. Owen Hildreth, a professor of mechanical engineering at Colorado School of Mines, to explore one possible solution. We discuss why support removal is such a significant bottleneck, how electrochemistry can be used to selectively dissolve metal supports, the engineering challenges behind developing this technology, and what it could mean for the future of manufacturing.

Whether you're interested in engineering, materials science, or simply curious about how tomorrow's products might be made, this episode offers a fascinating look at one of the hidden challenges shaping the future of metal 3D printing.