It’s a simple robot that drags a pen around to draw on paper. [Tim] decided to build one that uses a simple skid-steer design to get around the page. An Arduino Nano is the brains of the ...

If you like what you see, the robot will then begin to draw your portrait on a piece of paper. It does this using two human-like arms which are made from aluminium and driven by two stepper motors.

Irina Blok was a designer at Google who gets little recognition for her former team's now-famous creation: the green Android robot logo. She told The New York Times how it was created. Three years ...