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.

She had drawn a small yellow bird on an ordinary A4 sheet of paper, but the artwork appeared so three-dimensional that it looked like the bird was actually perched on the paper. Using only colored ...