LEGO Drawing Machine | YouTube, design, machine | BUILD A LEGO DRAWING MACHINE INSTRUCTIONS HERE: http://frugalfun4boys.com/2017/06/11/build-lego -design-drawing-machine/ My oldest son found this... | By Frugal Fun for Boys and Girls | Facebook
Simple Drawing Machine | JK Brickworks
LEGO MOC Drawing machine - Spirograph by hlw | Rebrickable - Build with LEGO
LEGO MOC Hand-cranked Drawing Machine by seejay | Rebrickable - Build with LEGO