To get around this, [RoTechnic] moved the wrist stepper motors off the arms entirely. He built a push-pull mechanism that uses braided fishing line to transfer motion to the robot arm’s wrist ...

stepper motor, Arduino-based, desktop robotic arm for makers, educators and anyone else there would like to learn more about robotics and have their very own precision desktop programmable robotic ...

The robot arm uses three stepper motors and two servo motors, and is based on the Arduino MEGA 2560 for control. The electrical schematics are also open-source, so getting this one up and running ...

Most robot arms we've seen in the past few years ... For a slightly higher price, the latter has more intricate gears with stepper motors for greater accuracy along with additional end-applicators ...