Roulette curve 13

by Firkin - uploaded on August 7, 2015, 8:32 pm

A spirograph-type curve such as would be obtained by rolling around the outside of an ellipse (major and minor axes of 2 and 1 respectively) a circle with radius 0.185 for three revolutions, the drawing point being midway between the circle's centre and perimeter.

ellipse epitrochoid roulette spiral spirograph
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