This online epicycloid and trochoid generator uses the method of linked wheels (2-5), known as a spirograph, to create spirals and rosettes used for artistic purposes, visualization, or to generate patterns for 3D printing and design, e.g., for protective or decorative elements, known as guilloches.

Set the parameters of the generating "Ferris" wheels, the speed and accuracy/smoothness of generation. You can export the resulting shape to an SVG file or a CAD DXF file (requires JavaScript)