Construct the tooth-wheel coupling between the deltoid and the cardioid
Let AB be a fixed diameter of a circle O. Through a variable point C on O construct two cardioids with AB and BC as tangents and with the cusps at the distance of 2AB apart.
Construct the tooth-wheel coupling between the trochoids.
Construct an animation displaying a nephroid and a cardioid meeting orthogonally on a circle
Given a fixed deltoid, construct an animation displaying its circumscribed nephroid.
Given a fixed nephroid, construct an animation displaying its inscribed deltoid
Construct an animation displaying a deltoid
sliding along two orthogonal straight
Construct a deltoid tangent to the sides of a given triangle