Overall, we were not entirely satisfied in our result. It would've been nice if the mechanism worked and the avocado pit had effectively been removed. The linkage connecting from the the end of the knife handle to the actuator was unstable and the servo that powered the linear motion was not powerful enough. Lastly, the avocado grip and holder was too small and unfortunately squished the avocado.
For our future work, we would like to explore a more effective way to produce motion in two planes. Although we were able to accomplish this by the linear and rotary actuator, the method that eventually produced the motion (the 3D printed blue linkages and the wooden dowel) was not the best solution. A more stable apparatus would be more ideal. In addition to this, some background knowledge and calculations for the servo and Arduino kit would have been helpful. We did not know the maximum torque output the servos could manage therefore we did not know if the knife would even be able to pierce the surface of the avocado pit. If we had known, we could have requested the correct servos ahead of time and thereby increase the chances the knife removing the avocado pit. Furthermore, having an understanding of how to assemble and code the Arduino kit, especially since we had two different servos, would have saved our group some time.