[Skyentific] is looking to push the hobbyist robotics state of the art. Motors and their gears, the actuators, are typically the most expensive part. For his build, he realised he needed big servos… ...

The robot arm uses three stepper motors and two servo motors, and is based on the Arduino MEGA 2560 for control.

Two people with long-standing tetraplegia use neural interface system-based control of a robotic arm to perform three-dimensional reach and grasp movements.

The five-foot-tall totally sentient robot is made of aluminum and steel, with “vaccu-formed styrene panels” to conceal his robot sexy parts.