Drawing robotic arm
I think, it is one of the cheapest 3-axis robotic arms. It can move, kick and mainly draw in many ways. It is controlled throught PC, which sends command via serial link to Picaxe 08M. Picaxe sends pulses to servos and they move. I used Picaxe, because PC with Windows cannot send accurate pulses via serial port.
The solderless field with Picaxe: