Harmonograph

Damped pendulums steer a pen across the paper. Tune their swings and watch the figure wind in.

Gallery

Designs you save stay in this browser. Nothing saved yet.

Preset

Paper and ink

Line width 0.6

Drawing speed 4×

Frequency ratio

Retune x : y to

Detune +0.10%

An exact ratio retraces one closed figure; a small detune makes it turn as it shrinks.

Pendulums

Keys: Space pause · R replay · F finish · N surprise me