making a cheap bionic arm for under $50 Cyborg Beast

its a 3d printed hand

works by collecting signals from human brain through hand below elbow.

buy fixing materials kit here

get the help and instructions to build from founders

http://enablingthefuture.org/upper-limb-prosthetics/cyborg-beast/

https://shop3duniverse.com/products/e-nable-hand-assembly-materials-kit-cyborg-beast-edition

check the video of assembling the parts with 3d printed hand bellow

check the hand on user here in this video