There’s a machine out there that qualifies as additive manufacturing without ever printing a single layer. That apparent contradiction is the whole point of Thermwood’s Cut Layer Additive system.
When we first covered CLA back in 2024, CEO Ken Susnjara walked us through a deceptively simple idea: instead of extruding thermoplastic material layer by layer, as Thermwood’s own LSAM machines do, Cut Layer Additive cuts those layers out of sheet material — wood, foam, aluminum, composites — and assembles them into large-format near-net-shape parts.
CNC routing, puzzle joints, and software intelligent enough to handle the programming automatically. You feed it a CAD file, define your parameters, and the machine does the rest.
The appeal for industrials was clear from the start: access to the speed and design flexibility of additive manufacturing, but for sheet materials that cannot be fed directly into an extrusion-based 3D printer. A 12-foot aerospace layup tool produced for a fraction of what traditional methods would cost. Aluminum molds. Thermoset composite structures. All of it without the thermal and material constraints that come with extrusion-based processes.
We have now passed the demonstration phase as the conversation at RAPID+TCT 2026 revealed a system that can produce large, production-ready tooling, molds, and patterns across composites, aluminum, wood, MDF, foam, and more.
Confirmed end-use applications now include thermoforming molds, blow molds, rotomolding tools, and reaction injection molds, each with the ability to integrate vacuum channels, temperature control passages, and venting features directly into the mold face during the CLA build.
On the software side, what used to take a skilled CAM programmer weeks can now happen in hours with minimal user inputs.
At RAPID+TCT 2026, we caught up with Product Manager Jody Wilmes to find out what two years of development have added to the system and whether the proposition has evolved for the industrial buyers it was built for.
Interestingly, Thermwood is based in Dale, Indiana, and the system’s commercial traction has largely stayed within North American borders. Whether that footprint is expanding is one area worth watching.
Watch on YouTube: Thermwood Cut Layer Additive Update | RAPID + TCT 2026
Source: Thermwood, Cut Layer Additive: sheet materials and process.
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