page_title: Jaquet-Droz automata
section_title: The draughtsman
hierarchical_section_title: Jaquet-Droz automata / The draughtsman
caption_attribution_description: Français&#160;: Les automates Jaquet-Droz, musée d'Art et d'Histoire de Neuchâtel English: Jaquet-Droz automata, musée d'Art et d'Histoire de Neuchâtel
context_page_description: The Jaquet-Droz automata, among all the numerous automata built by the Jaquet-Droz family, refer to three doll automata built between 1768 and 1774 by Pierre Jaquet-Droz, his son Henri-Louis, and Jean-Frédéric Leschot: the musician, the draughtsman and the writer. The dolls are still functional, and can be seen at the Musée d'Art et d'Histoire of Neuchâtel, in Switzerland. They are considered to be among the remote ancestors of modern computers.
  The automata were designed and built by Pierre Jaquet-Droz, Henri-Louis Jaquet-Droz and Jean-Frédéric Leschot as advertisement and entertainment toys designed to improve the sales of watches among the nobility of Europe in the 18th century. They were carried around, and lost at several points. The History and Archeology society of Neuchâtel eventually bought them in 1906, for 75,000 gold francs, and gave them to the museum.
context_section_description: The draughtsman is modelled as a young child, and is capable of drawing four different images: a portrait of Louis XV, a royal couple (believed to be Marie Antoinette and Louis XVI), a dog with "Mon toutou" ("my doggy") written beside it, and a scene of Cupid driving a chariot pulled by a butterfly.
  The draughtsman works by using a system of cams that code the movements of the hand in two dimensions, plus one to lift the pencil. The automaton also moves on his chair, and he periodically blows on the pencil to remove dust.
caption: The draughtsman
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