The
bucking dummy is a steel container that holds an internal
timer, an RC release receiver, and an electromechanical
release mechanism. Reverse engineering the bucking
dummy revealed that all of the signals required by
the Buckymeter were available on the timer’s wiring
harness. Optoisolators were placed across the Start
button and release signal to provide an interface
to the 3-V Buckymeter. Start is a 12-V pulse that
follows the state of a recessed button. Eject is a
12-V signal that grounds when the electromechanical
release is triggered.