nice @andrew.dowden. As to your skeleton search comment I think one of the attributes of these skeleton digital designs is that they are doing “something” when you glance at them. I would venture that a large majority of the public has no idea what the gears do (except to turn the hands somehow) and are not privy to rotational math and gear ratios, etc. When a wearer looks at their watch for less than 2 seconds they want to see the gears doing something… anything. So on my design above, I just turned the surface gears and the partially hidden escape wheel. The majority of skeleton builds I’ve seen here are rocking at least one gear back and forth with a sine function. But for those who know what they’re looking at, that’s a nice working model you have. Your tooth alignment (size and speed) is very, very good. I’m sure with a couple 'o beers in hand you could spend a good hour complaining (or boasting) about how hard that was right? totally understand here.
That was from someone’s attempt to explain the inner workings and how to build a wooden pendulum clock, from scratch. They skipped most of the details, but did describe the maths of ‘gear trains’ and some details on pendulums …
I was able to reproduce the diagram, which has a deceptive level of detail, fairly easily. But, the gears themselves are very specific. The exact ratio, size, and placement can not be adjusted, only scaled as a whole. This required a fairly-sophisticated spreadsheet (18 columns for numbers, per gear).
So, I can share some gear blanks (or short 2-3 gear trains), if you need them for your skeletons … 300dpi, grey/outline, etc.
@andrew.dowden: a while back I came across those same pictures, but before I gave it a go, I came across your work in this thread. I started drawing my own gears and tried to figure it out myself. I must confess I had to “cheat” a bit and look into your watch face. This is the result (switch to dim mode and back, for some animation):
I have not published it. So if OK with you, I’ll publish and of course mention you.