moving pen + moving drawing surface…
3-pendulum harmonographs typically combine a moving pen driven by two perpendicular linear pendulums with a moving drawing surface mounted on a rotary gymbled pendulum…
I designed the 3-pendulum harmonograph shown below for generating drawings as performative exhibition and as a performance instrument for generating experimental sound via attached contact mics … video here …
[above] a 3-pendulum harmonograph 2015 – formply, brass, timber, perspex
1200 (w) x 1200 (h) x 600 (d) mm
concept and design – Gary Warner / construction – Philip Sticklen
the harmonograph below was designed and built by artist karl sims, who provides a thorough description of how to construct a 3-pendulum harmonograph, here…
danish-icelandic artist olafur eliasson has built various drawing machines including a 3-pendulum harmonograph (below) exhibited at the tate modern, london and museum tinguely, switzerland…
this design includes an overhead mirror that allows anyone whose eyeline is below the drawing surface to watch the action…
this video includes documentation of eliasson’s 3-pendulum harmonograph at museum tinguely, switzerland…