I led a senior design team of 3 other Mechanical Engineering students to develop a prosthetic hand for my startup, PSYONIC. The goal was to be able to produce the hands for less than $1000 but still meet all performance characteristics of the $30,000-40,000 existing commercial devices. We accomplished this using Creo Parametric to design the hand in CAD, rapid prototyping with SLS and working with manufacturers of components such as worm gearing and DC motors. We conducted extensive performance tests, designed for robust use, and low cost. Using Eagle CAD we designed our own PCBs to allow motor control. PID control code was written to drive the hand to the desired positions for 5 different grips; adaptive grasping control code was also written to prevent the hand from crushing objects that resisted its motion. We utilized aPriori software to run manufacturing analysis to determine the best methods of manufacturing all components (injection and roto molding) to prevent large up front tooling costs. Below is a video of the final device controlled with EMG, muscle control, by an amputee.