Here is a line following robot using PID controller which moves extremely smooth along a line. The robot was designed to follow a 0.75″, 1″, 1.5″ and 2″ track width. Gayan has developed this robot to ...

Imagine trying to balance a heavy metal ball bearing on a cafeteria tray. It’s not the easiest thing in the world! In fact, it’s perhaps a task better automated, as [skulkami3000] demonstrates with ...

We all think we could use a third arm from time to time, but when we actually play this thought experiment out in our heads we’ll eventually come to the same hurdle [caltadaniel] found, which is a ...