Jaquet Droz signing machine - GIF

[Altair]

Jaquet Droz signing machine.




Previously:

Constrained ball line drawing aid - photo
Section liner drawing instrument - GIF
Rastrum multi-nib pen - photo

[jdurand]

how did they record the signature?

[bruce.desertrat]

I'm not sure, my guess is either a set of appropriately designed cams or an engraved follower track.

Here's the company's page about their automata: https://www.jaquet-droz.com/en/watches/automata