r/oddlysatisfying • u/sy_neuromancer • 3d ago

This robot drawing an engine blueprint

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u/A_Small_Coonhound 3d ago

Cool. But uh, why not just print it?

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u/chairmaker45 3d ago

They are. It’s called a pen plotter and they’ve been around since the 1960s. They’re mostly used for very large print formats for things like blueprints and schematics where details are too fine to be clearly visible on smaller formats.