Homework #3ME250 Precision Machine DesignHomework due date: 2/22/18Instructor: Michel PharandPlease sketch one problem per page. Q1)Use Gruebler’s criterion to compute the DOF’s of the mechanism below. The middlesquare is tied to ground.Q2)Sketch a constraint set for the lens barrel shown below. Use only the 4 rectangular tabs. For this problem, exact constraint is required in 6DOF. Use the coordinate system shown below. Hint, you may want to use a higher pair on one of the tab. Provide clear explanation.
Q3)The plate show below needs to be constrained such that it can expand about the