Well the main drive part of the lower mechanism is coming along. A few setbacks when my printer somehow decided to adjust the scale of some of my templates. I didn't figure this out right away of course, but struggled with some misalignment before the light went on. The spider shaped support for the upper ends of the shafts I have nicknamed the platypus. In on of those, all alone, working in the shop all day, it suddenly occurred to me that it resembled a hieroglyph of a platypus. It has stuck.
I'm working on the top works now. That's where i really discovered my scaling problem! Anyhow here's a photo of the progress of the lower part. Still a few cams and levers to add to animate the lineup characters and the still conceptual prisoner in the jail in the basement to add - maybe!
The wheel on the top left will have a shaft that extends up to the top level to drive the chain of chickens past the suspects. The lower mechanism converts a rotating handle mechanism to an intermittent motion to the chain.
Automata is a creative blend of my life interests , engineering, art and woodworking.