> Was that part of a longer program then? Do you have a title or a link?
Mechanical Marvels: Clockwork Dreams
But the iPlayer link says "not current;y available".
I'd never wondered about how these machines were programmed:
"It would be interesting to know exactly how the machine was programmed. One
can specuate that the profiles of the cams were laid out after the doll was
constructed by moving its hand over a master drawing and tracing the motions
of the three cam followers on simultaneously rotating disks of brass which
were then cut and filed to their proper shapes. Yet, this is only a guess as
Maillardet's Automaton was built in an age in which trade secrets were kept
closely within the circle of one's apprentices and family."
The Pierre Jaquet-Droz automaton would have been easier. The cam for each
letter could probably have been designed by hand - the automaton moves the
whole page after each letter is drawn. That design requires precision
movement of the hand over a small area - a single letter - whereas the
Maillaerdet automaton must be precise over the whole page.
So, are you going to build one?