The straight line mechanism base on Peaucellier inversion instrument

This paper gives the preliminary analysis based on the Peaucellier inversion instrument, and calculates the inverse apparatus according to the theory of inversion, a straight mechanism based on the Peaucellier inversion is designed and calculate the maximum circle radius of inversion instrument. Then instrument could switch between the straight line and circle by improving the straight line organization of inversion instrument. An assembly of straight-line mechanism is drew. The prototype is built, and the validity of the mechanism is verified by experiments.