Wrist Joint for Prosthesis (v1)

grabcad

Concept for a wrist joint that could be attached directly to an object or integrated into another terminal device.The ball-and-socket is designed to be printed as a single assembly on a printer with dissolveable support material. For an FDM printer, the socket could be printed in two halves and assembled.3D printing does not produce fine threads very well, so I have opted to use threaded rods that could be bonded (or tapped and threaded) into the assembly.The wrist can rotated in 45-degree increments by pushing on a release button (RED), but it can only be flexed in one orientation, so after attaching the wrist to the prosthesis and orienting the wrist in the desired direction, a locking collar (Green) can be used to secure it in place. The wrist can then be flexed in 30-degree increments.