A Wild Gears experiment: Inside a 120-tooth ring, we use Gear 96 containing a 40-toothed ring, drawing the pattern with a series of small gears inside the 40 ring to see the patterns. They all give a 5-lobed pattern, but with a lot of variation from one to the next. Small gears used: 32 (navy ink), 26 (pink). 34 (purple), 18 (green), 30 (red), 16 (turquoise).
Fuller explanation at
https://spirographicart.com/2021/03/02/wheel-within-a-wheel-exploration-with-wild-gears/
Learn more about Wild Gears at
https://spirographicart.com/wild-gears-spirograph-grownups/
Music credit:
"Mystic Force" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
http://creativecommons.org/licenses/by/4.0/