$2\mathrm{.}2$ Next, design a $4-$bar to accomplish the same task. Sketch and list all the steps you perform to design

the $4-$bar to move the blade between the two positions shown. $(8$ points$).$ Using a different color pencil,

indicate the final design of the $4-$bar at one position on the diagram. $(2$ points$)$

$2\mathrm{.}3$ Clearly sketch the rotopole link from a$)$ in the two positions below. Using a different color pencil,

sketch and list all the steps you would use to design a dyad to drive and limit the motion of the rotopole

between these two extreme positions. Assume a time ratio of $1.(5$ points$)$