Homework_3_Exact_Constraints.docx - Homework#3 ME250 Precision Machine Design Homework due date Instructor Michel Pharand Please sketch one problem per

Homework_3_Exact_Constraints.docx - Homework#3 ME250...

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Homework #3 ME250 Precision Machine Design Homework due date: 2/22/18 Instructor: Michel Pharand Please 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

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