Kaleido Gear is a traditional intelligence toy,
it contains a pair of gears, a big frame and a inner gear.
Roll the inner gear around the frame, a curve will be drawn on the screen.
Rose curve, star curve, infinite kinds of curves can be created with different gear settings.
Tags: rose curve , gear curve , kaleido , kaleido gear drawing , rosecurve , kaleido gears , infinite rose curve , kaleido geer , gear