CHANDLER, Ariz. — A Chandler teen just received a $50,000 scholarship for engineering innovation in stroke rehabilitation.

Why cycloidal gears? They are readily 3D printed and offer low backlash, which makes them attractive for robotic applications. There’s no need to design cycloidal gears from scratch, either.

The Evezor robotic arm boasts an all-metal steel skeleton outfitted with several Nema 23 motors for articulation while riding a fast-moving 1605 ball screw.