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1.1.1 A Brief History Of CAD/CAM systems was better than manual methods for creating designs and manuf actur- ing the parts on NC machines. Principles of Computer Aided Design and Manufacturing / Farid Amirouche / Pearson The real problem is identified by knowing the history and difficulties. Everything you learn about manual drawing technique applies to CAD/CAM The B-rep scheme is very popular and has a strong history in computer graphics. ChronologyEdit · 1963: Sketchpad · 1968: UNISURF · 1977: CATIA · 1978: Unigraphics · 1983: BRL-CAD · 2002: FreeCAD · 2007: NX · 1987: Pro/ENGINEER. 2009: Creo. HistoryEdit. The beginnings of CAD can be traced to the year 1957, when Dr. Patrick J. Hanratty developed PRONTO, the first commercial numerical-controlCAD/CAM is a term which means computer-aided design and computer- aided manufacturing. It is the technology concerned with the use of digital computers to Brief History of CAD / CAM​​ demonstrated the concept of numerical control (NC) on a three axis milling machine. graphics. Bell Technologies announced their Here you find a list of changes which has been made to CAD-KAS PDF Editor in the different versions.