thomasraukamp:

The Robotic Drawing Machine was built by maker/designer/craftsman Sandy Noble and he calls it a Polargraph which is really nothing more than a pen attached to string that’s moved by two small motors.

With an assist from good ‘ole gravity and some clever software the pen arcs back and forth, similar to a standard back-and-forth plotter printer, creating the beautifully textured drawings above.

Stumbled upon this many months ago but managed to forget the name and couldn’t find it again. Cheers!