Design Dragon

SCREW JACK         A  jackscrew , or  screw jack , is a type of  jack  that is operated by turning a  leadscrew . It is commonly used to lift moderately and heavy weights, such as vehicles; to raise and lower the  horizontal stabilizers  of aircraft; and as adjustable supports for heavy loads, such as the foundations of houses     Tutorial video for his design is available in my youtube channel    click here to watch FORK TAPER PIN KNUCKLE PIN COLLAR EYE

CAM WITH FOLLOWER                When the two links are connected either along a line or at a point, it is called a higher pair. Two such higher pair mechanisms will be included in a cam-follower system. A higher pair mechanism is known as cam and follower.              A follower is a rotating or an oscillating element of a machine hat follows the motion of cam by direct contact. If a cam moves in reciprocating motion the follower moves in vertically respect to the axis of cam.               The tutorial video of this design is available in my youtube channel   click here to watch video CAM FOLLOWER HOLDER