This robot draws portraits, elaborating photos and images.
The software on the PC is developed under MATLAB®, following the ideas of Claude Baumann and his students at http://www.restena.lu/convict/Jeunes/... (Erik's XY plotter).

The hardware is LEGO MINDSTORMS NXT® and a soft tip pen.
Made by Daniele Benedettelli in 2008. More details at http://robotics.benedettelli.com