JK Brickworks' LEGO Drawing Machine | The Kid Should See This
LEGO MOC Mini Technic Spirograph by nathansonic | Rebrickable - Build with LEGO
Making Spirographs With LEGO And Math | Hackaday
Simple Drawing Machine | JK Brickworks
Strata5 on Twitter: "Very cool Lego Spirograph machine that Noah has built. Thanks to @jasonallemann for the Instructions. Love Spirograph shapes https://t.co/vYS0SOgr2s" / Twitter