Easton LaChapelle: The $250 Arm That Shook Obama's Hand
Minutes before the President of the United States reached his table at the 2013 White House Science Fair, the teenager's robotic arm fell off its display stand and snapped at the elbow. Barack Obama shook its hand anyway. The broken limb had been built in a bedroom in Mancos, Colorado, for a few hundred dollars, out of plastic printed on a hobbyist 3D printer, with rubber bands doing the work of tendons — and it did more than prosthetics costing two hundred times as much.
Lego, a Microwave and a Town of 23 Classmates
LaChapelle grew up in a small mountain town in Colorado; his high school graduating cohort numbered twenty-three. There was no lab, no mentor and no engineering department. There was, as he tells it, a surplus of building blocks and an appetite for disassembly: "I had an abundance of Lego that I was constantly tinkering with, then I moved on to figuring out how things worked, like taking apart the microwave." By nine he was making small motors and cars. At fourteen he built a wireless robotic hand out of electrical tubing, fishing line, Lego, five servomotors and software he wrote himself. He had never seen a prosthetic limb up close and was not trying to build one. He was trying to build a hand.
The Girl at the Science Fair
The hand — by then a more sophisticated version — stole the show at a state science and engineering fair, where LaChapelle met a young girl born without a right arm. Her prosthetic had cost her family roughly $80,000, offered less function than the thing he had assembled from fishing line, and would have to be replaced as she grew. The moment reorganised his ambitions. "That kind of opened my eyes," he said. "I thought I could turn [my invention] into a prosthetic arm and help a lot of people." He put it more bluntly elsewhere: "Her arm had cost some US$80,000 and she would soon outgrow it. Mine had been built for a couple of hundred dollars in my bedroom and it was far more functional than what was out there for children."
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Take the IQ test →Brainwaves and Rubber Bands
The machine he took to Washington was, by version three, a genuinely strange hybrid of scavenged parts and real control engineering. Its skeleton was largely plastic, designed in software and manufactured on a Printrbot; only gears, motors and screws were bought in. Total build cost, excluding those parts, was about $250. Rubber bands acted as tendons; motors drove the fingers, elbow and shoulder. The control layer was the ambitious bit. A Teensy Arduino microcontroller, amplifier circuits and Bluetooth receivers let a user flex a muscle to scroll through movement options, blink to select a pre-loaded gesture, and then drive the motion using an EEG headset reading brainwaves. It was a teenager's approximation of neural control, built from consumer components — crude by clinical standards, remarkable as a proof that the price floor for functional prosthetics was far lower than the industry's.
A Broken Elbow at the White House
The 2013 White House Science Fair is where the story went national. The White House's own briefing described him as "Easton LaChapelle, 17 of Mancos, Colorado" — other accounts put him at sixteen — and noted he "was inspired to take his efforts to the next level when he met a girl with an $80,000 prosthetic arm at a science and engineering festival." Then the arm broke. Obama shook its hand regardless and the photographers got the picture. LaChapelle, characteristically, was more interested in the technical conversations: he talked with the director of the National Institutes of Health, who "seemed really interested in what I was doing." A NASA internship followed, working on the agency's Robonaut project, along with a university scholarship offer and a job offer from a Minnesota company that volunteered to pay his rent.
Unlimited Tomorrow
He took none of the conventional paths. Tony Robbins provided seed funding while LaChapelle was still finishing high school — at seventeen he was not legally old enough to own the company — and in 2014, aged eighteen, he founded Unlimited Tomorrow. The product that emerged, TrueLimb, is the science-fair arm industrialised: a custom prosthetic delivered without the patient ever entering a clinic. The residual limb is 3D-scanned remotely, a check socket is fitted and evaluated over video, and the device is 3D-printed and assembled in-house. It sells for under $8,000, and around $4,000 for children — between 60 and 90 percent below conventional prices. "It unlocks a new level of personalization never thought of before," LaChapelle has said. "Each device is made unique to each person, down to the size, shape, and feel."
Why Easton Is Called a Genius
The label follows LaChapelle mostly because of compression: he taught himself mechanical design, electronics, embedded programming and additive manufacturing without instruction, in a town with twenty-three kids in his year, and reached a working brain-controlled robotic arm by sixteen. Autodidacts of that breadth are genuinely rare, and the specific cognitive quality on display is systems thinking — the ability to hold mechanics, electronics and software in one head simultaneously and make them cooperate.
The honest counter-case is that none of the individual technologies were his. EEG headsets, Arduino microcontrollers, myoelectric sensors and 3D printing all existed; his contribution was integration and, crucially, price. That is engineering and entrepreneurship rather than scientific discovery, and no one has credited him with a novel invention in the patent sense. Nor should the science-fair arm be confused with a clinical-grade device — blink-to-select control is a demonstration, not a therapy. What he really did was notice, at fourteen, an absurdity that a whole industry had normalised: that a growing child's arm could cost $80,000 and be worse than a bedroom project. Refusing to accept that as inevitable, and then building a company to prove it wasn't, is a different kind of intelligence from raw brilliance — more stubbornness and clarity than genius — and it is the one the record actually supports.
Outlook
LaChapelle's stated aim has been consistent since the science fair: "technology with a purpose." The measure of his career will not be the Obama photograph or the teenage records, but whether a remotely-fitted, 3D-printed limb at a fraction of the standard price becomes the default rather than the exception — and whether the girl he met at fourteen, and the thousands like her, ever again have to pay $80,000 for something they will outgrow in a year.
