If you want to have your part designs fabricated, you’re going to need to provide the manufacturer with a technical drawing. Yes, 3D printers and many modern machine tools rely on toolpaths created ...
Appraisal: Pullman Railroad Technical Drawings, ca. 1900, from Cleveland Hr 2. Watch Gary M. Piattoni's appraisal of Pullman Railroad Technical Drawings, ca. 1900, in Cleveland Hr 2.