The mechanism contains a four bar linkage kinematic chain connected in parallel with a inverted slider crank. The kinematic chain RTR´s joints are connected with the crank and the coupler of the four bar linkage. By means of changing the geometrical lengths of the mechanism´s links, the coupler point M describes a range of coupler curves.
The file was generated with the CAD software ProEngineer for the geometrical dimensions: x = 168 mm, y = 20 mm, l2 = 20 mm, l2´= -25 mm, l3 = 100 mm, l3´ = 30 mm, l4 = 100 mm, l5 = 80 mm.