I finally started wearing my new prosthetic hand. it has all kinds of new features. first of the leaf chain winder. this winder is almost 3/16" thinner. it nearly lines up with the tops of the metacarple bases. next is the printed socket. I'm using the prusa xl to print a dual material socket. This allows me to vary the firmness of the socket and adjust the feel. also, with this design it pops into the device and locks into place with 4 half spheres and a stop on the bottom of the winder.