Additive Snack

Hosted by EOS

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108

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Oct 2026

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About the show

Join host Fabian Alefeld and a range of guests as they discuss all things additive manufacturing (AM) and 3D printing news, with interviews and real-world stories to educate and entertain. Each episode, Fabian talks to AM experts, professionals in specialist fields, and 3D printing users from all walks of life to deliver a well-rounded view on the state of AM. Cut through the confusion surrounding polymer and metal additive manufacturing solutions with our digestible, down-to-earth discussions that deliver insights into common mistakes and best practice tips so you can get a clear understanding of AM — layer for layer. Whether you’re curious about 3D printing technology for the aerospace industry, a deep dive into post processing, or applications of injection molding — we leave no spare parts behind. We want to provide you with the additive insight needed to stay laser focused and leverage every opportunity 3D printing materials have to offer. Join us for an Additive Snack and we’ll help you and your business achieve growth and success through the latest developments in AM. No marketing B.S. and no product pitches. Just the education, inspiration and information you and your organization need to drive business growth, brought to you by global AM leader EOS. Get ready to feed your AM knowledge and find your path to success!

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60 recent

October 13, 2026Episode 441 hr 2 min

When Production Overtakes Prototyping: Materialise’s Next Phase of AM

In this episode of Additive Snack, Fabian Alefeld sits down with Bart Van Der Schueren, CTO of Materialise, to discuss additive manufacturing's (AM) evolution from a prototyping tool to a true production technology. Bart shares his journey into AM through early stereolithography research at KU Leuven and reflects on Materialise's origins as a small service bureau that quickly realized it needed its own software to automate data preparation and workflows. Those early efforts eventually grew into the three pillars that define Materialise today: manufacturing, software and medical applications. The conversation explores a major milestone for Materialise, as serial manufacturing volumes in its manufacturing business have now surpassed prototyping. Bart explains what's driving that shift, where AM is gaining traction fastest, and why industries such as hearing aids, dental, drones and aerospace are moving at different speeds. The discussion also examines the growing role of artificial intelligence in manufacturing, from design optimization and simulation to in-situ quality control, automated workflows and reducing the cost of new product introduction. Bart shares how Materialise is positioning itself for the next stage of AM growth while helping customers scale production in highly regulated industries. 01:59 Bart Origins in AM 04:49 Materialise Early Model 07:28 Three Pillars Emerge 09:59 From Prototypes to Parts 15:07 Serial Production Milestone 20:22 Industries Driving Adoption 23:13 Aerospace Slow Burn 27:24 Disruptors Drones and Agile 31:02 Iterative Printing Workflow 32:19 AI Driven Rapid Iteration 34:11 Mass Customization With AI 38:47 Design AI Beyond Hype 42:06 AI For In Situ Quality 45:28 NPI Costs And Scaling 48:16 Materialise Strategy Ahead 55:00 Industry Outlook No Return

October 6, 2026Episode 431 hr 4 min

U.S. Navy's Captain Deichler on AM in the Submarine Industrial Base

Fabian Alefeld speaks with Captain Jason Deichler, Chief of Staff, Director, Submarine Programs, about the U.S. Navy’s effort to increase submarine production and sustainment capacity while rebuilding a strained industrial base. Deichler explains the challenges created by decades of manufacturing consolidation, workforce shortages, supplier attrition, and lost casting and forging capabilities, all while pursuing the Navy’s ambitious "one plus two" goal: delivering one Columbia-class and two Virginia-class submarines annually. The conversation explores the Navy’s strategy for strengthening submarine production, guided by Admiral Gaucher’s four pillars: stabilizing submarine designs, allowing prime shipyards to focus on integration, expanding the industrial base, and designing future platforms with advanced manufacturing in mind. Deichler discusses how additive manufacturing (AM) helps address obsolescence, reduce lead times, expand supplier capacity, and improve supply chain resilience. They also examine the growing adoption of both polymer and metal AM, including the qualification of new materials and processes, lessons learned from deploying AM components, and the industry's progress toward certifying increasingly critical applications. The episode concludes with insights into supplier engagement, workforce development, and how companies can support the future of submarine production through the Submarine Industrial Base initiative. 02:21 The State of the Submarine Industrial Base 05:07 The Navy's "One Plus Two" Production Goal 06:54 The Four Pillars Strategy 10:54 Workforce, Suppliers & Obsolescence Challenges 13:12 Rebuilding Capacity with Advanced Manufacturing 18:45 Safety, Data & Certification Requirements 21:22 AI, Cobots & Productivity Improvements 25:34 When Additive Manufacturing Became Mission Critical 29:05 From Skepticism to Adoption 31:51 Scaling from 25 to 75 Qualified Parts 32:54 Lessons from Space Applications 35:16 Qualification and Production Scale-Up 36:22 Selecting the Right Parts for Additive Manufacturing 38:26 New Standards, PPDs & Material Qualification 39:54 Procurement, Ordering & Supply Chain Systems 42:18 Data Rights, Digital Thread & Machine Capacity 43:31 Supplier Demand and Industrial Base Growth 50:28 The Future: Tens of Thousands of Parts 56:00 Neo-Primes, Modularization & New Production Models 57:57 How Suppliers Can Get Involved 59:48 Closing Thoughts

September 29, 2026Episode 4244 min

Building Drones at Scale: SLS Production from Low-Volume to High-Rate Manufacturing

In this episode, host Fabian Alefeld sits down with Nick Classen, General Manager of Northwest Rapid Manufacturing, to explore how the company has grown from supporting early UAV production at Northwest UAV into a leading provider of polymer additive manufacturing (AM) services. Classen shares how Northwest Rapid began using EOS selective laser sintering (SLS) technology in 2008 and continues to operate its original system today. The conversation examines why AM has become a strategic technology for UAV and aerospace applications, enabling lighter-weight components, reduced part counts, complex geometries, and a seamless path from functional prototyping to production. Classen emphasizes the importance of engaging AM experts early in the design process to ensure parts are optimized for manufacturability before release. The episode also explores production scaling, with discussions around typical UAV production volumes, market growth driven by defense spending and industry consolidation, and applications ranging from structural brackets and housings to conformal fuel tanks. Classen highlights the role of advanced materials, including Nylon 12, glass-filled polymers, alumide, and flame-retardant materials, as well as the extensive post-processing, coating, testing, and EMI shielding capabilities required to deliver finished production parts. He concludes with insights into Northwest Rapid’s plans to expand into metal AM. 02:05 The Origins of Northwest Rapid Manufacturing 03:59 Why AM Makes Sense for UAVs 06:40 Designing for Additive from the Start 10:52 Low-Rate vs. High-Rate Production 12:29 Scaling for Future Market Growth 14:52 UAV Applications Moving into Production 16:41 Conformal Fuel Tanks and Structural Components 20:05 Materials Driving SLS Adoption 22:27 The Value of Post-Processing 23:00 Finishing and Certifying Fuel Tanks 24:16 Understanding EMI Shielding 24:57 Why More UAV Housings Are Being Printed 26:07 Growth Trends in the UAV Industry 28:39 Expanding into Metal AM 30:09 Opportunities Beyond UAVs 31:31 Educating the Next Generation of Drone Engineers 36:09 Scaling Operations to Meet Demand 37:27 Hiring, Workforce Development & Post-Processing

September 1, 2026Episode 4155 min

The AM Sasquatch: Challenging AM Qualification with Math, Physics, & AI

Fabian Alefeld welcomes back Harshil Goel, founder and CEO of Dyndrite, to discuss how current additive manufacturing (AM) qualification practices limit advanced laser powder bed fusion toolpaths by locking variables such as software, machine, strategy, layer height, and material. Harshil reviews MQ, IQ, OQ, and PQ, noting cost and rigidity increase toward part qualification. They discuss Dyndrite’s roles in multiple America Makes efforts: AI4AM to reduce the specimen counts needed for material allowables (starting with 17-4PH) using improved statistical methods; DeltaQual 2.0 to enable “bracketed qualification” so parameter changes within a defined process window don’t retrigger requalification (including varying layer heights within a part); and Gotham to transfer scalable, qualified parameter approaches across different machines and sizes using materials like Scalmalloy. Harshil describes “Sasquatch,” a physics-based KPV framework using ratios (e.g., energy density, enthalpy, melt pool dimensions) to bound process windows and increase confidence without relying solely on sensors or simulation, and highlights software and AI accelerating DOE and parameter iteration with a target program timeline of about two years. 01:34 What Dyndrite Builds 02:11 Why Qualification Blocks Innovation 03:58 IQ OQ PQ MQ Explained 08:22 PQ Locks Everything Down 09:00 America Makes Program Overview 09:57 AI4AM Materials Allowables 12:39 Process Windows Not Fixed Params 14:57 Delta Qual 2 Bracketed Qual 17:38 Partners Sensors And Confidence 19:25 Sasquatch New KPVs 25:33 Gotham Scaling Across Machines 27:07 Future Less PQ More Reuse 28:39 Industry Impact Of Faster Qual 29:52 Customer Owned Parameters 30:54 Additive As Moat 32:13 Microstructure Driven IP 33:12 Selling Machine Control 34:31 Breaking Vendor Silos 35:36 Two Year Timeline 37:57 Risks And Adoption 41:23 Software As Glue 42:11 AI Accelerated DOE 45:34 Math Meets Empiricism 49:48 Future Outlook Wrap

August 25, 2026Episode 401 hr 8 min

AM as a Moat: How Annihilator Created a Competitive Advantage in Broadhead Manufacturing

Fabian Alefeld interviews Brandon Brodie, co-founder and CEO of Annihilator Broadheads, about how an Idaho elk hunt and a lost bull sparked a new broadhead concept sketched by Brandon’s future partner Micah. They describe turning the 2D sketch into plastic CAD prototypes via Boise State, a makeshift “wind tunnel” test using Instant Pot steam, and early performance goals of flight, penetration, durability, and lethality. Field and improvised tests (steel drum, long-range accuracy, animal kills) plus third-party fluid dynamics modeling suggested Annihilator’s design created unusually large high-pressure and low-tension effects. After major supply failures with investment casting and metal injection molding - causing shortages, high scrap rates, and lost dealers - Brodie brought manufacturing in-house, adopting metal laser powder bed fusion, improving repeatability and enabling new geometries like the Katana. He outlines ongoing innovation, potential adjacent products, and plans to leverage Annihilator’s additive capabilities for partnerships and contract manufacturing. 02:26 Elk Camp Origin 06:43 Sketch to Prototype 11:36 Instant Pot Wind Test 14:44 Performance Pillars 18:41 Steel Drum Proof 22:45 Real Hunt Validation 26:45 Fluid Dynamics Breakthrough 30:41 Engineering Led Marketing 33:32 Manufacturing Growing Pains 34:27 Industry Award Surprise 35:53 COVID Demand Crunch 36:54 Casting Supplier Failures 39:40 MIM Tooling Disaster 42:30 Additive Breakthrough 46:35 Learning Metal Printing 49:55 Repeatability and Materials 52:56 Katana Broadhead Innovation 57:49 Scaling R&D Team

August 18, 2026Episode 3949 min

AI Is Getting Hot: Can Additive Manufacturing Help Cool It Down?

Host Fabian Alefeld interviews Professor PS Lee, Head of National University of Singapore Mechanical Engineering & Program Director of STDCT, and founder of CoolestDC, about heat as a key constraint in AI infrastructure as data centers shift from CPU-heavy to GPU-dense systems with higher power density, hotspots, and bursty workloads. Lee explains why cooling must be treated as an integrated “chip to grid” system spanning cold plates, racks, CDUs, piping, controls, and operations, and discusses single-phase versus two-phase direct-to-chip liquid cooling and the added need for condensation in closed loops. Professor Lee describes how additive manufacturing (AM) enables complex fin structures and unibody cold plates that reduce leakage risk, lower junction temperatures (~10°C), cut pumping power (60–70%+), and reduce material use, while requiring TCO evaluation. At NUS’s live testbed (22 liquid-cooled racks, ~500 kW), AM cold plates are being deployed and show promising thermal, power, and compute-performance improvements; future work includes two-phase cooling and broader system-level heat rejection, warm-water operation, and waste-heat reuse, plus a discussion of challenges and potential AM roles in space-based data centers. 02:13 Meet Professor Lee 05:26 Chip To Grid Cooling 10:22 Liquid Cooling Maturity 14:15 Two Phase Explained 18:12 Cold Plate Tradeoffs 20:40 AM Unibody Cold Plates 24:41 Benchmarking AM Gains 30:18 AM For CDUs 34:13 Inside STDC Testbed 38:09 Reliability And Leakage 39:00 Next Phase Roadmap 42:31 Orbital Data Centers

July 21, 2026Episode 381 hr 0 min

Inside GM's Additive Industrialization Center with Ante Lausic

In this episode, Fabian Alefeld sits down with Ante Lausic, Lead Process Engineer at General Motors' Additive Industrialization Center (AIC), to explore what it takes to successfully scale additive manufacturing (AM) in the automotive industry. Ante explains why automotive manufacturing demands more than innovative technology - it requires AM-native designs, cost-effective production, automotive-qualified materials, and repeatable processes capable of supporting high-volume manufacturing. He also shares how GM has evolved from using AM primarily for rapid prototyping to establishing the Additive Industrialization Center in 2020 to evaluate new technologies, validate production readiness, and strengthen collaboration across the supply chain. The conversation highlights real-world production applications, including the Cadillac Celestiq, which incorporates more than 130 AM components, such as a safety-critical binder-jetted stainless steel seatbelt guide and aluminum steering wheel trim. Ante also discusses the rapid growth of additive manufacturing for tooling, including die-casting inserts, plant fixtures, and end-of-arm tooling, and offers his perspective on where the technology is delivering the greatest value for automotive manufacturers today. 01:56 Scaling AM in Automotive 05:10 Value and Cost Reality 07:27 GM Additive Center Origins 11:02 Educating Engineers and Suppliers 14:34 Celestiq AM Success Stories 19:44 Supplier Freedom and Standards 23:00 Tooling Inserts Big Wins 27:50 End of Arm Tooling Growth 29:36 Motorsports and F1 Links 32:10 Aftermarket Digital Warehousing 33:39 Materials and PPAP Hurdles 36:14 PPAP Explained Simply 38:43 Rethinking Qualification Costs 41:07 Scaling to Corvette Volumes

July 14, 2026Episode 361 hr 14 min

Why AM and Orthotics & Prosthetics are the Perfect Fit

Fabian Alefeld interviews certified prosthetist/orthotist and EastPoint Prosthetics VP Brent Wright about his career path into O&P, his shift from being anti-digital to adopting scanning and additive manufacturing, and the impact on patient care and global access. Wright describes traditional fabrication workflows (casting, plaster positives, vacuum forming thermoplastics for orthoses, and carbon fiber/resin layups for prostheses) as artistic but time-consuming, hazardous, and lacking records. His digital journey accelerated after a Guatemala trip with Life Enabled highlighted the need to scale care; he focused on scanning, digital modification, and later powder-bed fusion, moving toward SLS with materials like PK5000 and TPU. He emphasizes pressure casting for prosthetic sockets, the value of digital records for insurance, and how AM can change socket “dynamics” to improve comfort and heal wounds. The discussion also covers RADii’s data-driven fitting approach, Life Enabled’s mix of traditional and 3D-printed solutions (including pediatric feet), modular “kit” concepts for developing regions, and barriers to sensors/actuators in the US due to reimbursement. 02:33 Brent Origin Story 09:30 Why Go Digital 11:17 Scaling Global Access 17:32 Traditional O&P Workflow 20:02 Casting And Fabrication Steps 24:07 Digital Workflow And Scanning 33:22 Benefits Of Digital Records 36:36 Flexible Liner Heals Wound 40:47 RADii Data Meets Craft 46:06 Life Enabled Model 01:01:50 Democratizing via Manufacturing 01:08:01 Sensors vs Simplicity

July 7, 2026Episode 3741 min

AM at a Crossroads: Incodema3D Proves What's Possible at Scale

Fabian Alefeld sits down with Sean Whittaker, founder, president, and CEO of Incodema3D, to discuss the company's journey from a sheet metal prototyping business to one of North America's largest metal additive manufacturing operations. Sean shares why he invested in metal AM early, how Incodema3D built a production-first business model, and what it takes to scale additive manufacturing beyond prototypes. The conversation explores the evolution of Laser Powder Bed Fusion (LPBF) technology, the importance of vertically integrated manufacturing, and how improvements in machines, materials, software, and Design for Additive Manufacturing (DfAM) are making production at scale a reality. Sean also discusses growing demand driven by reshoring, defense, aerospace, and energy applications, Incodema3D's specialization in aluminum thermal management components and high-volume Inconel production, and how AFM Capital's investment is accelerating expansion through new equipment, automation, and future U.S. manufacturing sites. Episode Chapters 01:41 Sean's Origin Story 05:13 Taking the Leap into Metal Additive Manufacturing 07:05 From Prototypes to Production 08:07 The Advantage of Vertical Integration 10:54 The Maturity of Additive Manufacturing and DfAM 15:46 Thermal Management, Inconel, and Consumer Applications 19:21 Defense, Energy, and Replacing Cast Components 21:28 Accelerating Growth with AFM Capital 25:49 Cycle Times, ROI, and Production Flexibility 30:07 Automation and Building the AM Workforce 34:50 Reshoring, Expansion, and the Future of Production 39:50 Wrap-Up

June 23, 2026Episode 351 hr 58 min

AM Rocket Engines and Space Nuclear Power with Omar Mireles

Fabian Alefeld interviews Omar Mireles, Director of Manufacture and Materials at Space Nuclear Power Corporation (Space Nukes), about his career spanning NASA, Oak Ridge, and Los Alamos and how additive manufacturing (AM) reshaped space hardware development. Omar describes early exposure to SLS prototyping, graduate work in nuclear materials and propulsion, building nuclear materials labs at NASA Marshall, and later leading AM efforts for liquid rocket engines and refractory metals. He explains how AM accelerates iteration, enables complex geometries, part consolidation, and weight reduction, and where traditional methods still dominate depending on production rate. The conversation covers refractory metal challenges (supply chain, oxygen sensitivity, post-processing, inspection) and nuclear reactor basics, generations, and regulatory barriers to AM adoption. Omar outlines Space Nukes’ goal of delivering safe, affordable, reliable power anywhere in the solar system, noting heat rejection as a key space constraint, Krusty’s 2018 test heritage, potential AM roles in heat exchangers, and an aggressive ~2-year flight timeline depending on regulation and mission. 02:26 Omar Early Motivation 03:08 NASA Co-ops and First AM 07:59 Stirling Radiation Research 20:07 Refractory Metals AM Lab 21:31 Los Alamos to Space Nukes 25:14 Did AM Change Space Race 31:46 Where AM Flies Today 37:41 Rocket Engines Print vs Traditional 41:15 Refractory Alloys Challenges 46:39 Where Refractories Make Sense 47:05 Will Refractory AM Grow 49:39 NASA Metal AM Handbook Origins 56:37 How Nuclear Reactors Work 01:13:02 Additive Manufacturing in Nuclear 01:18:31 What Space Nukes Builds 01:19:36 Why Space Nuclear Power Matters 01:25:20 Why Space Needs Nukes 01:37:47 Krusty Test Proof 01:41:18 Heat Rejection Challenge 01:49:25 Timeline and First Missions