To use my online drawer, please visit https://hanzhi713.github.io/Flowers-Curve/
Flowers curve (Spirograph) is a type of toy invented by Denys Fisher, a British Engineer, and later independently invented by Binglie Yang, a Chinese inventor. In practice, these curves are drawn by moving a small gear inside a ring gear
Based on similar mechanics, I designed this webpage for drawing flowers curve in browser. The first GIF is produced with all circles and skeletons shown.
See my wiki