Jason Allemann of JK Brickworks (previously documents his latest creation: a poltter that squeezes precise patters of icing onto cookies, built out of Lego Mindstorms, and includes full, downloadable instructions.
Jason Allemann built a neat LEGO Drawing Machine, inspired by a Spirograph and a 1950s toy called the Hoot Nanny or Magic Designer.
It can create many different patterns by changing the configuration of the model," Allemann writes. "You can also draw multiple patterns on the same piece of paper to create even more complex designs." — Read the rest