here’s a much better article with images of an actual reproduction: https://www.popularmechanics.com/science/archaeology/a695541...

A channel called Clickspring on Youtube covers the building of a reproduction and also shows a lot of the tooling that could have been used to make it. Well worth watching.

I saw the mechanism in person recently on a trip to Greece and it was a strangely electric experience. That such a thing could have been made two thousand years ago is hard to believe. It seems almost supernatural, an artefact of time travel or something. I watched it for more than an hour, but it didn't do anything.

Absolutely a thing of genius years before anything else.

I have to think that there were other similar things contemporaneous with this device as the skill and knowledge displayed in its design and execution would not come ex nihilo.

Sadly they seem to be lost to us.