They are launching version 3 of their LittleArm robotic arm, and the progression ... components are 3D printed, and driven by 3 servos for motion plus one additional servo to run the gripper.

[How To Mechatronics] capitalized on this and built a SCARA robot arm using 3D-printed parts and common ... and are actuated with a servo. For controlling the motors, an Arduino Uno and CNC ...