Hypotrochoid & epitrochoid curves drawn with animated SVG paths
Drawing...
Presets
Parameters
Outer R 5
Inner r 3
Pen d 5
Speed 2x
Style
Color
Line width 2px
A hypotrochoid: inner circle (r) rolls inside outer circle (R). The pen is at distance d from the inner circle's center. LCM(R,r) determines how many loops before the curve closes.