The mechanism contains a RRT kinematic chain connected in parallel with a four bar linkage. The kinematic chain RRT´s joints are connected with the coupler and the crank of the four bar linkage. By means of changing the geometrical lengths of the mechanism´s links, the slider block point M describes a range of coupler curves.
The file was generated with the CAD software ProEngineer for the geometrical dimensions: x = 140 mm, y = 40 mm, l2 = 30 mm, l3= 160 mm, l3´ = 80 mm, l4 = 120 mm, α = 45°, l5 = 160 mm.