--- title: "Cycloid Object" url: "https://help.maxon.net/c4d/en-us/Content/html/OSPLINECYCLOID.html" section_path: "Create Menu > Spline > Cycloid Object" element_id: "OSPLINECYCLOID" command_id: "5184" description: "This page covers the Cycloid spline primitive in Cinema 4D. It generates rolling curves — cycloids, epicycloids, hypocycloids — mathematically exact paths …" --- # Cycloid Object > **Note:** **What is it about?** > > This page covers the **Cycloid spline primitive** in **Cinema 4D**. It generates rolling curves — cycloids, epicycloids, hypocycloids — mathematically exact paths suited to gears, orbits and rolling motion studies. This creates a sort of **rolling curve**. This curve is described by a point located on the circumference of a circle as the circle rolls along a straight line. (This point can also be located inside or outside the circle.) Cycloids, epicycloids and hypocycloids are particularly suited to rotating types of movement such as walking, gear mechanisms and planetary orbits.