Tinkering Project: LEGO Art Machines | Exploratorium
Drawing Machine Made with LEGO Technic | Tech Age Kids | Technology for Children
Simon Willison on Twitter: "@mwichary My two other favorites from a few years later were 1989's 8862: Backhoe Grader and the utterly epic 8094: Control Centre from 1990 https://t.co/uBQV8ZOUpi" / Twitter
Two small DIY LEGO Technic spirographs | The Kid Should See This
LEGO MOC Modified Simple Drawing Machine (Spirograph) by JanBassett | Rebrickable - Build with LEGO