Welcome to my prosthetic hand page!
As an intern at AIO Robotics, I designed this prosthetic hand to assist those with limb differences so that they may grasp objects by simply curling their wrist. This hand is completely mechanical, requires no electronics, and is tendon-driven. While its functionality is not revolutionary, this project exploits the use of flexible filament to remove the need for pins at the joints, making it easier to scale the prosthetic based on screw sizes without having to worry too much about the tolerances of 3D printer extrusions. Additionally, I built the prosthetic to uphold a streamlined look, retaining the tendons in channels and underneath a forearm shell. The resulting product looks pretty awesome to me. While this prosthetic has not undergone live testing with a recipient, I have posted the details of the printing and assembly to Instructables for anyone interested in expanding the outreach of this project. I am completely expecting a flaw(s) in some form or fashion, so feel free to make modifications as you please! I am also very open to suggestions.
Before I get started, I would like to give a quick shout-out to AIO Robotics for giving me the incredible opportunity to intern at the company and providing that exciting start-up vibe. Check out AIO's printer, the Zeus--I have yet to come across a printer that is as high quality and dependable as it is (seriously). Their emphasis on software really pays off. While the Makerbots, XYZ, and Airwolf printers I've used in my club keep breaking down, the AIO keeps churning away excellent prints, and there are more features to come. Furthermore, I would also like to thank the Tampa-based Handling the Future Organization for giving me the ideas, advice, and vision for improvement. Its members played a huge role in the direction of this project. Without them, I would have never created this prosthetic.
With that, continue on and enjoy!
These are the materials that I used for the prosthetic that I printed. Feel free to find alternatives to these materials if they are more convenient and/or less expensive.