3-D printed mechanical limbs Jamie Miller and Dad Callum have designed and 3-D printed a collection of limbs to replace the one he was missing at birth. These allow Jamie to pick up objects, throw/catch a ball, and manipulate objects. They are now working on the next level - a bionic, sensored limb that is integrated into Jamie's muscle twitches.

Callum's Twitter feed, with videos, pictures, news coverage.
https://twitter.com/turboconnect?lang=en

Sky News Article (Jan 2019):
https://news.sky.com/story/dad-builds-3d-printed-bionic-arm-for-son-11599564

Callum's GoFundMe page: https://www.gofundme.com/jamie-miller-robotics