An ellipsograph uses the trammel method to create ellipses.

Construction of Ellipse using Ellipsograph

An ellipsograph uses the trammel method to create ellipses.

Trammel method is a construction of an ellipse using a strip of paper, thin cardboard or sheet celluloid.

Construction of Ellipse using Trammel Method

Trammel method is a construction of an ellipse using a strip of paper, thin cardboard or sheet celluloid.