One side of the first relay runs the motor atop phase 1 which powers the car to be pulled up the incline which eventually covers the photo resistor. This flips the relay to the other side which power the motor of phase 2. This causes the lift to go upward therefore, uncovering photo resistor 2 which then flips a sepperate relay to switch on powering the fan to blow a piece of paper uncovering Scout's photo resistor. Some issues I still have with my setup is that the time just barely reaches the 10 second minimum this is primarily due to when the left begins to lift up it uncovers the photo resistor beneath it so quickly that it almost instantaneously swithches the second relay. I want to make a more elaborate cover because if you look closely this was the failure in my second video. The fan starts running even before the lift begins to move because the second phtoto resistor was never covered properly. Although the above schematics look very similar it is important to note that the location of the photo resistors in relation to the op amp gives them the required functionality. The first one is used to increase the amplification when covered and the second one is used to increase the amplification when uncovered this is why they are in opposite possitions in relation to the op amp in the schematic.
Figure 1: shows incline of phase 1
Figure 2:Shows DC motot 1 at the top of phase 1
Figure 3: Shows phase 2
Figure 4: Shows phase 4 (the transition)
Figure 5: Circuit board
Video 1: Sucessful Rube Goldberg
Video 2: Rube Goldberg failure
The failure with the original circuit was primarily that I could not achieve pulling off the piece of paper with only 1 second of power so I eliminated the clock from my circuit and added in the additional relay, opamp and motor. Another issue I had was for some reason I still have not been able to understand is that on the day of the individual demos my motor on the top of phase 1 kept getting weaker after each use. I decreased the incline to provide more room for error and have since had no issues with it.