The first machine that I would use is the 3D printer to print out the pendulum. It's hard to cut that out with other machines, it's easier to just print it out. Next I would use the laser to cut out the frame/body of the clock, and the hands of the clock. Lastly I would use the vinyl cutter to cut out numbers to place around the face of the clock.
First I would do is laser the clocks body and the hands because the clocks body is the foundation and while I'm doing that I might as well laser out the hands. Then what I would do is 3D print the pendulum, attach the hands to it, and then attach all of it to the clock. Lastly I would use the vinyl cutter to create numbers to put on the face of the clock.