Liam's "Robohand" - A Inexpensive Home-brewed Prosthesis Created Using 3D Printers

When Ivan Owen from Washington State posted a video of his handmade mechanical hand prop on YouTube, little did he expect that he would be contacted by Richard Van As, a South African amputee and fellow craftsman living 10,000 miles away. Together, they designed and built a working prosthetic finger for Richard that we covered last October. After raising money to build more prototypes, the two went on to complete an entire prosthetic hand for a young boy named Liam who was born without fingers on his right hand, the design of which they are sharing online free of charge.

After only a few days, five-year-old Liam had already become proficient at grasping small objects with his "Robohand," which cost his family nothing. The mechanical fingers were made using a Replicator 2 3D printer and are attached to a brace that is worn over Liam's hand. The fingers are controlled via cables and return bungees, which, while relatively low-tech, provide a functional and comfortable to wear prosthesis. The design can also be scaled for other individuals using Makerware software.

"We are now expanding our efforts to share the knowledge we've obtained freely with everyone as well as building more devices for people in need at no cost," Owen says. "All of our designs are being released into the public domain and we want to build prosthetics at no cost to people who need them. To do this we are relying on donations and a key component of that is finding ways to share our story across the globe."

The design of Liam’s Robohand is available for free on Thingiverse with a public-domain license.

From Gizmag.

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