1970 – Pneumatic Drawing and Painting Machines – David Jacobs (American)
Pages 51 – 52 [images above] February 1970. A "drawing" and later "painting" machine which made the graph-like drawings in which we see both the simple program and the simple resultant "drawing." Later developments added variable voltage and therewith a "how much" on or off possibility. These and other developments made a greater apparent distance …
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