1. Is this a Grashof or non-Grashof mechanism? __________________
   
   
2. Label each of the links below as a "rocker" or a "crank."
   
   driver ________________     coupler ________________      output ________________
   
   
3. In the configuration given in the problem statement, find the transmission angle to the nearest 0.1 degrees. Show your work:
   
   
   
   
   
   
   
4. At the above transmission angle, what percentage of the force is transmitted from the coupler to the output link?
   
   
   
   
5. On another sheet of paper, draw and label the curves of points A, B and P through the range of motion.
   
   
6. On the same sheet of paper, draw and label the toggle positions and ground link.
   
   
7. Calculate the range of the driver angle, θ, using trig. Round these values DOWN to the nearest degree (you will use these values in FOURBAR). Confirm that your trig solution makes sense by testing it on the cardboard model.
   
   From ________________     to ________________ 
   
   
   
   

SOFTWARE SIMULATION

1. Make a sketch of the "Crossed Circuit" and "Open Circuit" for a crank angle of 50 degrees.
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
2. In Excel, plot the motion of point P (Y vs. X) over its ENTIRE possible path (e.g. if momentum carried the coupler through its toggle points).
3. In Excel, plot the Transmission Angle vs. Driver Angle.
4. Explain why the Transmission Angle curve has cusps.
   
   

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