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In my last post on the fridge, I described the circuit board that would control the motors for the fridge. I have now completed the circuit board that will control a motor and some servos. For instance, the servo that will control releasing a can so it can roll into the elevator that will carry it to the catapult.

Here is that board (click to enlarge):

Here are all of the electronics for the fridge (click to enlarge):

Here are the 2 torsion springs which will propel the catapult. At full compression, they provide about 40 inch-pounds of torque.

Soon, the HDPE (High Density Polyethylene) Plastic will be arriving.  I will be using this to form the structure/support for the catapult and the elevator.

Brian