The lengths of the links comply with the condition: C͞D:B͞E=A͞C:A͞B=k. Link 1 rotates about fixed axis x-x and is connected by a screw pair to link 2 and by sliding pair E to slider 6. Link 4 turns about fixed axis A and is connected by turning pairs B and C to links 5 and 3 which, in turn, are connected by turning pairs E and D to slider 6 and link 2. When link 1 is rotated, links 2 and 6 have similar translational motion with the similarity factor k, thereby accomplishing the copying process. Bevel gears 7, 8, 9 and 10 rotate the workpiece and the template being copied.
$2275$LS,FD$