#maketheworld A Glimpse at the Future of 3DP Prosthetics #3DThursday #3DPrinting
One of the recent projects garnering a lot of attention in the 3D printing community and the open prosthetics movement in general (and Jon Schull shared it in e-NABLE here, thanks for the tip) is a teaching project by Richard Hague that is both a model for many elements involved with feedback in the human arm and an example how an electronic and mechanical 3DP design might replicate this complexity within a tight form factor.
3D printing can render everyday artifacts in clear plastic, so we can see in unprecedented detail how they work – and this exquisite model of a prosthetic arm is a brilliant example. It is one of the highlights at the London Science Museum’s 3D printing exhibition, which features more than 600 printed objects.
Designed by Richard Hague, director of the Additive Manufacturing and 3D Printing Research Group at the University of Nottingham, UK, and his students the arm shows how the printers can create strong structure, mobile joints and delicate sensors – like spiral-shaped metal touch-detectors – all in one process.
“It’s a mock-up but it shows circuits that sense temperature, feel objects and control the arm’s movement,” says Hague. “3D printing gives us the freedom to make complex, optimised shapes, and our research aim is focused on printing-in electrical, optical or even biological functions.”
Such techniques are also bringing prosthetics to people who previously could not afford them. For instance, the open-source “robohand” project, pioneered by South African carpenter Richard Van As, aims to print cheap, plastic customised prostheses for people who have lost fingers, or who were born with some digits missing or malformed. Some of his work – with the designs available online – is also on show at the Science Museum.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.