
3DPOD 247: LJ Holmes, Executive Director for the Center of Advanced Manufacturing and Materials at Harrisburg University
03/31/25 • 52 min
Executive Director for the Center of Advanced Manufacturing and Materials at Harrisburg University, Larry “LJ” Holmes is a pioneer in applying additive manufacturing to defense and other critical sectors. Part inventor, part educator, he is dynamic and a true force for change. LJ is now spearheading the J-DAMMIT military 3D printing event. But he’s also done exciting work in explosive technologies and beyond. From swarm manufacturing to aviation, and from tiny robots to some of the largest 3D prints in existence, LJ has played a key role. In this episode of the 3DPOD, Harrisburg University’s mission and approach will likely inspire you as well and deepen your appreciation for the polymath that is LJ.
Executive Director for the Center of Advanced Manufacturing and Materials at Harrisburg University, Larry “LJ” Holmes is a pioneer in applying additive manufacturing to defense and other critical sectors. Part inventor, part educator, he is dynamic and a true force for change. LJ is now spearheading the J-DAMMIT military 3D printing event. But he’s also done exciting work in explosive technologies and beyond. From swarm manufacturing to aviation, and from tiny robots to some of the largest 3D prints in existence, LJ has played a key role. In this episode of the 3DPOD, Harrisburg University’s mission and approach will likely inspire you as well and deepen your appreciation for the polymath that is LJ.
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3DPOD 246: 3D Printing at Oechsler, with Andreas Knoechel
Andreas Knoechel, Head of Program Management for Additive Manufacturing at Oechsler, is doing some real heavy lifting in production. German plastics manufacturer Oechsler was the pioneer behind 3D-printed shoes at scale. In this episode of the 3DPOD, Andreas speaks of this success as well as some lesser-known achievements of the firm. From the well-known bicycle seats to other newer applications, he highlights the firm’s progress. I’d definitely give this episode a listen—Andreas shares real pearls of wisdom on optimizing 3D printing, true additive manufacturing, and its applications. The conversation was valuable, and I’m confident that if you listen, you’ll come away convinced that Oechsler is much further ahead than you may have thought.
Next Episode

3DPOD 248: AM in the Marines and Advanced Technologies with Howie Marotto, EWI
I really loved this episode of the 3DPOD with Howie Marotto, Additive Manufacturing Business Director at EWI. A Marine with deep logistics experience gets to tell us how viable 3D printing actually is for the military. If we look at the frontlines, the forward operating base, or large overseas bases—where will we 3D print what? Which technologies and machines will be used, and how will the U.S. ensure it has the best machines? Given his significant experience in setting up and supplying some of the largest bases in the world, overseeing aircraft maintenance supply, and implementing new logistics systems, Howie offers unique insight into the need for and realism of 3D printing in military logistics.
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