The mechanism within the cube consists of a central steel shaft supporting an electric chain saw and an electric motor. The center shaft is anchored by a metal cross- piece to which is attached a second electric motor. The saw, positioned so that the blade is parallel with the top of the cube, is mounted on a metal bracket attached to the center shaft. The mechanism is triggered by a voice-operated relay located in the stand. Upon activation both the chain saw and an electric motor start. The motor, coupled by a chain to the metal bracket, pivots the saw drawing it through the wall about four inches from the top of the cube. When the blade is perpendicular with the side of the cube a contact switch turns the motor off while another switch starts the second motor. This second motor is coupled to the center shaft and rotates the saw through the remaining three hundred and sixty degrees. When the saw returns to the starting point another pair of contact switches cut off the chain saw and electric motor.

After the piece is completed the mechanism is transferred from the cut cube, sealed inside a new cube, and replaced on the stand. (Jean Blodgett)