[Brian] is using an Arduino to control multiple servo motors. This is nothing new and has been happening since the earliest days of Arduino. But rather than develop a project and share it, [Brian ...

If you've messed with Arduino, the inexpensive micro controller, you'll know that you can run a small motor or turn an LED on and off, but anything else - powering a pump, turning on a light bulb ...

The servos give the arm a maximum lifting capacity of 0.25 pounds, fully extended. 3D printing allows the creation of strong, but incredibly lightweight components. Molding can’t match it.