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Even though the torque output required by the motor is higher in the new design, it is still well within the maximum output of the servo motor chosen for the product of 1.7 Nm. If we had chosen a weaker servo motor, the original Design I would have been the only feasible option. Figure 5 shows the mechanism in its completed form.
Figure 5: Complete Design II assembly with cover over the mechanism
Another key factor with this final design was the addition of a case over the mechanism. This would prevent any unwanted snags with the moving linkage while operating complex movements during sailing. Figure 5 also shows the chosen actuation method for this design. A Hall effect sensor was embedded into the top corner of the 3D printed plastic, and the signal from that is sent to a microcontroller to open and close the device on command. Having a magnetic ring attached to the thumb of the user allows him or her to tap the corner of the device, trigger the sensor, and cause the microcontroller to move the servo to the opposite state, which could be open or closed. The toggle mechanism was designed to work the same physically for both opening and gripping on the rope.