DoodleBOT: automated drawing on whiteboards

DoodleBOT: automated drawing on whiteboards:






GarabatoBOT (in English DoodleBOT) is a little robot that can make simple doodles on a vertical white-board. Its five custom components, a central body, two arms, and two pulleys, are fabricated by deposition, using a MakerBot. (Designs are available from Thingiverse.) Aside from those it consists of two stepper motors, a corresponding power driver, an Arduino Pro Mini microcontroller, and a Bluetooth modem. The pulleys are press-fit on the stepper motor shafts, and are used to reel in/out strings or thin cables which attach to the upper corners of the whiteboard, or at least to points which are widely separated. The DoodleBOT is suspended on those strings/cables and moves about as their lengths are adjusted.