Integrating 3D Printing at Scale: Caterpillar’s Roadmap to Additive Manufacturing Success

As 3D printing moves beyond rapid prototyping, enterprises are keen to unlock its full potential. Yet, most firms hesitate to launch a complete additive manufacturing (AM) operation from day one.

In the case of Caterpillar, the journey began in 1991 when the company acquired its first stereolithography machine. The system lived in a dedicated rapid‑prototyping lab that soon became a hub for engineers across the organization. Over 25 years, the lab evolved from a visualization tool into a strategic driver of innovation.

The Birth of AM at Caterpillar

While rapid prototyping remained valuable, leadership recognized that additive manufacturing could elevate product design and production. “We had to move beyond rapid prototyping and start using AM to create functional parts,” explained Stacey DelVecchio, a senior engineer at Caterpillar. The challenge was clear: how to embed a new technology into a workforce of roughly 100,000 employees worldwide?

Nomadic Printers, AM Summits, and Design Competitions

The answer lay in a phased, pilot‑first approach. Caterpillar launched the “Nomadic Printer Program,” which deployed six industrial printers—including uPrints, Fortus 250s, an Objet printer, and an HD Max—across U.S. facilities. Local engineers were empowered to experiment freely, generating early successes and sparking curiosity: “Hey, Stacey, what should we print next?” she recalls.

To deepen knowledge, the company organized an AM summit featuring workshops, talks, and case studies. These sessions laid the groundwork for future “Design for Additive” workshops, where engineers would learn to integrate AM principles directly into product development.

To further embed the mindset, Caterpillar hosted a design competition. Participants were challenged to move beyond jigs and fixtures and design end‑parts that could be improved through AM. The winning entry was a ball check valve that combined multiple components into a single metal part—a solution that would later be adopted company‑wide. The program is slated to expand to five additional competitions.

The AM Factory

In 2021, Caterpillar unveiled its Additive Manufacturing Factory at the Global Research & Development Center in Mossville, Illinois. The 10‑printer facility—including a Carbon M1 and a MicroFoundry—provides the AM innovation group with direct access to R&D talent and a visible showcase for executives and visitors.

Initially, the factory offered free 3D printing services, but the novelty led to unsustainable demand. The company shifted to a material‑only model, where users pay only for consumables. After refining the model, Caterpillar now charges a fully burdened cost that reflects post‑process labor, facility rent, and equipment depreciation.

Future of AM at Caterpillar

AM is already delivering measurable benefits. Through its Solar Turbines subsidiary, Caterpillar produced its first end‑part—a fuel swirler with a unique geometry—using additive methods. The company also 3D printed 36 track links in a prototype run, saving $160,000 in labor and time.

In the aftermarket sector, Caterpillar printed an elastomeric grommet with a Carbon M1, a critical component that will support equipment for decades. The company’s strategy includes digitizing inventory via 3D scanning and creating a virtual inventory, a work in progress that promises greater traceability and cost savings.

Partnerships will play a key role in scaling AM. A recent three‑year collaboration with FIT AG will focus on printing aluminum and titanium parts, while Caterpillar continues to explore alliances with suppliers, universities, and other innovators.

DelVecchio emphasizes that the investment in AM has already made the company more agile, allowing rapid iteration on even the most complex machines. The lesson for large enterprises: think big, start small, and act quickly.

Credits: More about 3D printing at CATERPILLAR.