Epitrochoid to Epicycloid is similar to Hypotrochoid to Hypocycloid. Epitrochoid is a generalization of Epicycloid where the tracking point can lie inside or outside the rolling circle. Animate the drawing process of Epitrochoid and experiment with different parameters.
![](https://i0.wp.com/pythonturtle.academy/wp-content/uploads/2019/04/e7-13.png?resize=640%2C653&ssl=1)
![](https://i0.wp.com/pythonturtle.academy/wp-content/uploads/2019/04/e5.3-2.7.png?resize=640%2C653&ssl=1)
![](https://i0.wp.com/pythonturtle.academy/wp-content/uploads/2019/04/e1.1-7.1.png?resize=640%2C653&ssl=1)
What’s next?
Spirograph