Mancos, Colorado has a population of about one thousand people. It sits in the mesa country of the southwestern corner of the state, closer to Utah than to Denver, the kind of small town where teenagers learn to fix trucks, not build robots. Easton LaChapelle grew up there, and he was bored in the best possible way — bored enough to teach himself programming from YouTube videos, to Skype engineers he had never met and ask them questions until they helped him, to spend his evenings and weekends building things he had no blueprint for. In 2008, when he was fourteen years old, he built his first robotic hand. The materials were LEGOs, fishing wire, and electrical tubing. The hand worked.
What followed over the next three years was a master class in iterative engineering conducted by a teenager with no formal training, no institutional support, and no resources beyond what his parents could afford. He rebuilt the hand. He improved the mechanisms. He taught himself to use an Arduino microcontroller — a small, programmable circuit board that has become the standard tool for amateur robotics — and integrated it into the design. The fishing wire gave way to more sophisticated actuator cables. The LEGOs gave way to custom-fabricated components. By the time he was fifteen, he had a hand that could grip objects. By sixteen, it was a full arm. Then, for his seventeenth birthday, he split the cost of a $500 3D printer with his parents, and everything changed.
Three-dimensional printing allowed LaChapelle to fabricate custom components with precision that no hand-building could match. The printer became his machine shop, his materials lab, his prototyping facility. He printed an arm. He connected it to a commercial brainwave headset — an EEG device that reads electrical signals from the brain's motor cortex — and programmed the system so that the wearer could control the arm by thought. Focus on a particular movement, and the arm moves. The science underlying this is a branch of engineering called brain-computer interface (BCI) research, typically conducted in university neuroscience laboratories with million-dollar equipment. LaChapelle, at seventeen, was doing it in rural Colorado with a $500 printer and an off-the-shelf EEG headset.
The encounter that transformed his project from impressive hobby into mission happened at a science fair. He met a seven-year-old girl who had been born without an arm. Her prosthetic — a clinical device fitted at a specialist hospital — cost $80,000. It offered limited functionality: she could grip, but not with the dexterity that comes naturally to a two-handed person. LaChapelle looked at the device and described it to interviewers as "archaic." He told the girl and her mother that he thought he could do better. He went home and redesigned his arm specifically to address what he had seen in that $80,000 device. His version cost approximately $250. It was lighter. It was more functional. It could be controlled by thought. He later fitted the girl with one.
The story reached the White House. LaChapelle was invited to demonstrate his robotic prosthetic to President Obama, shaking the President's hand with the artificial limb — one of the more arresting images to emerge from the culture of young American innovation in the 2010s. He gave a TEDxMileHigh talk at seventeen that earned a standing ovation. He skipped college to work at NASA on the Robonaut project, which develops dexterous robotic systems for space exploration. Then he came home to Colorado and founded Unlimited Tomorrow, the company that represents the culmination of everything he had learned since the day he opened a box of LEGOs.
Unlimited Tomorrow's model is elegant in its simplicity. A patient takes a 3D scan of their residual limb at home. The scan is sent to Unlimited Tomorrow. The company prints a custom-fitted prosthetic arm designed specifically for that person's anatomy, ships it to them, and provides ongoing support. The cost is a small fraction of conventional prosthetics. The customization is greater. The turnaround time is faster. LaChapelle's company is doing what he told that seven-year-old girl at the science fair he thought he could do — building something better, for less money, for more people. He was twenty-six when CNN profiled the company in 2020. He had been working on this problem for twelve years.
"I met a girl at a science fair who had an $80,000 prosthetic arm that could barely open and close. I thought — I can build something better than that. And I can do it for $250."— Easton LaChapelle on the encounter that changed his direction
| Device Type | Typical Cost | Customization | Control Method |
|---|---|---|---|
| Traditional clinical prosthetic arm | $50,000–$100,000 | Limited | Myoelectric signals |
| Standard myoelectric hook device | $5,000–$20,000 | Minimal | Muscle contraction |
| LaChapelle's 3D prototype (2011) | ~$250 | Fully custom via 3D print | EEG brainwave headset |
| Unlimited Tomorrow arm | Fraction of clinical cost | Custom scan-to-fit | Advanced myoelectric |
Easton LaChapelle at TEDxMileHigh — "3D Printing in Animatronics" — his landmark talk at age 17
The 3D-printed prosthetics revolution — how desktop manufacturing is democratizing medical devices
"I taught myself robotics from YouTube. I Skyped engineers I'd never met. There was no school for what I wanted to do — so I built the education myself."— Easton LaChapelle on self-directed learning in rural Colorado
"Tony Robbins says he's the next Elon Musk. That might be overselling it. But the trajectory — from LEGOs to NASA to founding a company that's giving amputees their lives back — is unlike anything we've seen from someone this young."— On the arc of LaChapelle's career
Two million Americans live with limb loss. Globally, the number runs to tens of millions, concentrated in lower-income countries where conventional prosthetics — at $50,000 to $100,000 per device — are simply unavailable. The prosthetics industry has operated for decades with a simple economic reality: devices are expensive because they are complex to manufacture, fit by specialists, and covered (partially) by insurance systems that exist in a handful of wealthy countries. Everyone else goes without.
LaChapelle's insight was not merely technical. It was economic. By combining 3D printing, remote scanning, and iterative design — the tools of the digital manufacturing revolution — he found a path to affordable, customized prosthetics that bypasses the clinical-manufacturing infrastructure entirely. A patient anywhere in the world with a smartphone can now submit the data needed to produce a device fitted precisely to their anatomy. That is a structural disruption of a market that has needed disrupting for decades.
The story of Easton LaChapelle is also a story about the democratization of knowledge. He learned robotics from the internet. He got help from strangers. He built with $500 printers what clinical device companies built with million-dollar laboratories. Rural Colorado produced, with no institutional support, one of the most consequential biomedical engineers of his generation. The lesson is not that school is unnecessary. The lesson is that curiosity, persistence, and access to information can compensate for the absence of almost everything else.