Introduction
Car factories are starting to print their own parts. Ford, Rivian and General Motors are now using 3D printing — also called additive manufacturing — for much more than prototypes. They are printing factory tools and selected production parts right on the factory floor, and the main reason is simple: speed.
What Happened
Rivian has spent more than $5 million on 3D-printing machines, and it spends about $1.7 million a year on printing materials. The company says the machines usually pay for themselves within a year. Parts that once took weeks to make can now be ready in days, and sometimes in hours. Rivian’s latest expansion includes machines for flexible silicone parts and a new machine bay at its plant in Normal, Illinois.
Ford has gone even further with everyday access. The company has additive-manufacturing departments at many of its plants, including a vending machine for 3D-printed F-150 parts near Dearborn, Michigan. Workers can request parts and tools through an app. Ford expects to have 3D labs at more than 23 plants by the end of this year, with more than 200 machines in its current program. In one case, a 3D-printed part kept a production line running until a replacement from a supplier arrived.
GM is using the technology on its most exclusive cars. Its hand-built Cadillac Celestiq uses 135 3D-printed components, and its Cadillac Blackwing sedans include printed parts such as a medallion on the manual shifter knob. GM has also expanded its use of industrial Stratasys printers, which can cost hundreds of thousands of dollars depending on the job, training and certification.
Why It Happened
Traditional car parts take time. A factory usually has to order a tool or part, wait for a supplier to make it, and then wait for shipping. If the part is only needed in small numbers, that wait is hard to justify.
3D printing flips that process. A digital design goes straight to a printer on site. Engineers can test a part, change the design, and print it again the same day. For tools like jigs and brackets that help workers build cars, that speed matters more than the cost of the printer itself. As Jared Beck, Rivian’s head of additive manufacturing, put it, the company is “democratizing 3D printing for the entire company” — and while savings run “well in the millions,” speed is the main point.
Key Figures
- Rivian: more than $5 million spent on 3D-printing machines; about $1.7 million a year on materials
- Rivian: machines typically pay for themselves within a year
- Ford: 3D labs expected at more than 23 plants by end of 2026; more than 200 machines in the program
- GM: 135 3D-printed components in the Cadillac Celestiq
Why It Matters
For car buyers, this is not about a single part. It is about how fast a car company can fix problems, test new ideas and keep lines moving. A factory that can print a broken tool overnight does not have to stop work while it waits for a supplier. Over time, that can mean fewer delays and lower costs — and for companies like Rivian, which is preparing its cheaper R2 SUV, lower costs are essential.
Related: Rivian Beats Earnings Expectations as Its Cheaper R2 SUV Takes the Lead
It also shows how manufacturing is changing. 3D printing used to be a lab tool for prototypes. Now it is a factory tool for real work. Companies are still not printing whole cars, and high-volume parts are still made the traditional way. But for low-volume parts and factory tools, printing is becoming normal.
What Happens Next
Expect more printers on more factory floors. Ford’s plan for 23-plus labs shows the direction, and Rivian’s new machine bay points the same way. The next test will be whether these savings show up in the companies’ results — faster production, fewer delays and lower costs per vehicle. If they do, other automakers will follow quickly.
Final Thoughts
3D printing will not replace traditional car factories. But it is already changing how those factories solve problems. When a part can be printed in hours instead of ordered in weeks, the whole factory moves faster. For an industry where every hour of downtime costs money, that is a big deal.
Disclaimer: This article is for educational and informational purposes only and does not constitute financial advice.
Sources: CNBC, “Automakers like Rivian and Ford are ‘democratizing 3D printing’ to reduce costs and increase speed” (https://www.cnbc.com/2026/10/31/automakers-3d-printing-ford-rivian-gm.html); Stratasys/Rivian factory-floor reporting on the F870 platform adoption.
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