In conclusion, the final assembly moved smoothly through its full range of motion and accurately recreated the movement expected from the kinematic analysis. Because of this, I consider the assembly to be a success.
The main work that could continue on this assembly is to motorize the input and possibly add some type of retaining clips to further prevent the links and sliders from disengaging. The motorization of the assembly would also allow constant speed rotation, so the velocity and acceleration of the output could possibly be electronically measured, further testing the accuracy of the movement. Finally, motorization could allow the assembly to more easily draw it's path continuously, as opposed to the discrete measurements I took, which would better reflect the path.