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Spirals & Spirographs

Hypo/Epi trochoids with auto-close. Export SVG/PNG.

Pattern Kind

Presets Type R (fixed radius) 180 r (rolling radius) 52 d (pen distance) 120

Auto-close Turns

Steps per full turn 1200

Show guides Trace point

Presets Type Base R / a 60 a or b (growth) 0.18 Turns 3 Terms (Fibonacci) 8 Steps total 1200

Squares overlay

Stroke Color Gradient Color 2

Background Bg Color

Bg Color (Fallback)

TV mode: use swatches or enter #RRGGBB then Set.

Speed

Animate drawing Loop

Seed

Debug Metrics

Samples: 0

Turns: -

Closed: -