Meet the AxiDraw SE/A3: an awesome robot that can perform human-like writing and drawing robot. It can work on paper sizes up to 11×17 inches. The AxiDraw SE/A3 can write with fountain pens, permanent markers, and other writing instruments.
The robot has a central beam built from a solid billet of 6061-T6 aluminum. The AxiDraw allows you to draw from Inkscape with the AxiDraw extension. It has a RESTful API and command-line interface for shell-level control.