Why Divergent and Seurat Built Their Own Metal 3D Printers

The machine market is not keeping up

Over the last 20 years, five major contract manufacturers have reached the same conclusion: the metal 3D printers available off the shelf were not good enough for what they needed to build.

Norsk Titanium made that call in 2007. Seurat Technologies and VulcanForms followed in 2015. Freeform did it in 2019. Divergent Technologies joined the list in 2026. Each company decided that buying an existing industrial AM system was a worse bet than building one from scratch.

TCT Magazine recently explored this pattern in a deep dive, talking to leaders at Divergent, Seurat, and Norsk Titanium about what drove them to vertically integrate their own metal AM technology. The answers split into two buckets: technical limitations and economic reality.

The speed problem

Seurat's origin story is the clearest illustration. The company spun out of Lawrence Livermore National Laboratory after founder James DeMuth calculated that printing a 12-meter diameter fusion chamber with existing laser powder bed fusion would take longer than his remaining career. That math forced a rethink.

Seurat started from a blank slate, engineering custom lasers, light valves, print chambers, gantry systems, and other subsystems that bear little resemblance to conventional LPBF machines. The goal was to compete with casting and forging on cost, not just match other metal 3D printers on quality.

Divergent took a different path. CEO Lukas Czinger developed the Monolith One, a machine designed specifically for automotive and aerospace production at volume. The company had already printed safety-critical metal components for uncrewed aircraft systems and automotive structures before deciding to build its own hardware. Czinger says the learnings from years of scaled metal production directly shaped the machine design.

The economics are harder than the engineering

Industrial AM machines cost a lot, and the economics of buying them do not always work for contract manufacturers. Tooling costs, minimum order quantities, and machine utilization rates all factor into whether a production run is profitable. Building proprietary hardware lets a company tune every variable to its own workflow, but it also concentrates risk: if the machine does not work, the whole business stalls.

3DEO tried this approach in 2016 and recently filed for insolvency. The lesson is that developing your own AM technology is not a guarantee of success. It is a bet that you understand your production problems better than any machine vendor does.

What it means for the market

When contract manufacturers start rivaling machine OEMs for attention, the balance of power shifts. Companies like Divergent and Seurat are no longer just customers of AM equipment makers. They are competitors, and they are selling their excess capacity or licensing their technology to other manufacturers.

The trend also signals dissatisfaction with the pace of improvement among established AM vendors. If the leading contract manufacturers cannot find machines fast enough, cheap enough, or capable enough on the open market, they will build their own. That pressure should accelerate innovation across the whole sector, whether machine makers respond or not.

For buyers of metal AM services, the short-term effect is more choice and potentially lower prices as vertically integrated manufacturers compete on cost. The long-term effect is harder to predict, but the direction is clear: the line between machine builder and parts producer is blurring, and that changes who shapes the future of metal 3D printing.