Sage, I downloaded the 3D PDF file and it opens for me as a "Flat" 2D file. The three arrow prospective indicator is at the lower left, bottom of the drawing. But I cannot drag and rotate it.
I must be doing something incorrectly.
I did three identical pieces for the frame because I could not get any 6061T6 in 3/8 locally. Yes, I could have easily cut it by at least .030 per pass. I have a lot of .125 in stock so that is the way I went. The "Spool" piece was cut on my mill for no other reason than that I could do it. Thought it made it look more like framework, rather than one of the round moving pieces of the clock.
On Figure 15, I did a lot of creative editing on that file. I enhanced the line width, removed the center axle lines and just did what I could to make it as clear as possible.
After I downloaded the set of files from the last edition, I imported them as DXF into CamBam, used it to clean up all the notations, extra centering lines, etc and then used the cleaned up files to generate the g-code for all the flat pieces.
On the "full size" side view of the assembly drawing. I started by scanning it from the magazine in very high definition. I then clean up anything that did not look sharp an crisp. The end result was the almost exactly full size side view of the complete assembly. That is the drawing that finally brought it all together for me.
I assume you have played back my video file where I how the wheels interacted. If it would help, I could make additional movies from other views of my finished mechanism.
Thanks for the kind words about my drawings/pictures. Doing them gave me a much better understanding of how it all worked together.
You can probably tell, I am a lot more adept at doing computer stuff than machining parts. Possibly because I spent my professional life in front of a computer screen, doing almost anything that was possible to do. I guess that is why I am so fascinated with CamBam, Mach3, and CNC work in general.