The Mechanical CPU Clock shows the basic building blocks of a CPU (ALU, buses,RAM,registers, and a Control Unit). It executes a set of instructions which will emulate a simple wall clock.The Mechanical CPU Clock shows the basic building blocks of a CPU (ALU, buses,RAM,registers, and a Control Unit). It executes a set of instructions which will emulate a simple wall clock.http://youtu.be/0H4LTOYpAM4More information can be found here: http://www.liorelazary.com/index.php?option=com_content&view=article&id=46:mechanical-cpu-clock&catid=10:clocks&Itemid=15and Here: http://www.instructables.com/id/Mechanical-CPU-Clock/start building the clock by laser cutting the parts out of acrylic. You can use what ever color you like, but some colors show up better then others, so you should experiment.Once the pieces are cut, glue the track to the bottom of the clock using plastic weld on.The buses are made out of piano wire. Note the angle band at the top, which will be used to adjust the final length.Attach the buss wire to the flip-flops by forming an L band at the bottom.Attach the motor to the lifter and secure the clock with screws.