A machine is able to draw by herself. The device designed originaly to paint stripes on tennis court or football field is hacked. The device becomes autonomous and creative. An Arduino board is programmed to controlled the three motors: one makes the pen turn, two others for the motion. The back and forward motion is possible because of a selfbuild electric board composed with six musfets and two external relais. There’s a switch button on the machine that the audience is free to switch on and off. The device is programmed to drive forward and backward, to stop, to make the pens turn and to draw curves or lines on the floor. The drawing looks like spring circles, straight lines, curves and can be seen as a code partition.