Witworth Quick Return Mechanism

The witworth return mechanism includes a sliding mechanism that is linked to a rotating crank. As the crank rotates, the shaft that links the sliding mechanism and the crank will move via contact to a knob located on the crank. This rotational movement will cause the sliding mechanism to slide side to side. The main issue that I came to find when designing this on Fusion was the fact that I had not thought of having a backing to the mechanism. The image given seemed to be suspended in air, so I came up with a different iteration after doing some research on the mechanism and how it worked. Instead of a backing I added a singular shaft that would attach the base of the main shaft, would attach to the crank, and the chamber in which the sliding mechanism moves. This makes the model very streamlined and it looks great, however, the functionality of the end product is hindered by the pins that were used to link the product together. With smaller pins the mechanism would move much smoother and would not need any extra assistance to have the mechanism move.

Laser cutting

Final Product assembled