Biomimetic Robotic Prosthetic Hand

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My latest project is a cutting-edge 3D printed biomimetic robotic prosthetic hand that's pushing the boundaries of innovation. This remarkable device consists of intricately designed bones, ligaments, tendon sheaths, and supporting structures like the palm and servo tower mounting pieces, all fabricated through 3D printing technology. I'm taking advantage of both rigid and flexible materials in my design, combining ABS for the bones and mounting hardware with Taulman 3D's PCTPE filament for the ligaments and tendon sheaths. The tendons themselves are crafted from spectra deep sea fishing line, adding an extra layer of realism to this prosthetic masterpiece. After dedicating 10 months to perfecting the hardware, I've amassed a total of 54 distinct STL files – 20 bones, 14 tendon sheaths, 16 ligaments, 20 tendon guides, one palm, two servo mounting plates, six pulleys, and one carpal tunnel. What's truly impressive is that I designed 37 out of these 57 unique files myself, while the remaining 20 bone files underwent significant modifications to fit my project. The original base files can be found on Thingiverse at http://www.thingiverse.com/thing:15342. My design stands out from current robot hands in several key areas. Most notably, it leverages biomechanics to achieve unparalleled dexterity. By incorporating the major components of the human hand – bones, ligaments, tendons, tendon sheath, and intrinsic muscle – my prosthetic can mimic human movement and speed with remarkable accuracy. In contrast to traditional mechanical joints, I've opted for printed ligaments and laser-cut rubber to form a joint capsule, yielding impressive results in terms of performance and dexterity. Another significant innovation lies in the control department. Given that my design closely mirrors its human counterpart, I can utilize existing data from human hand movement to control the prosthetic. This approach eliminates the need for writing entirely new code, instead allowing me to track my actual hand movements using draw wire sensors and transmit that data directly to the prosthetic. While the actual hand in my project is larger than human scale due to manufacturing ease, the form factor of my servo motors closely resembles that of a forearm – the part they're mimicking. This design choice sets my project apart from most bulky robot hands on the market.