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I’m no designer or engineer, but I absolutely love Computer Aided Design (CAD<\/a>) software and all its derivatives and associated applications.<\/p>\n I love 3D-modelling, I love surface manufacturing. I love rendered visualisations. And I love all the things you can do with them.<\/p>\n I’m also pretty keen on Computer Aided Manufacturing (CAM<\/a>) and Computer Aided Engineering (CAE<\/a>). The things for which you can use these classes of applications seems to increase weekly. From machining parts for racing cars direct from the designer’s computer screen, to milling dental crowns and inlays developed from digital scans of the patient’s teeth.<\/p>\n For me, CAD started during my first employment at Avon County Council<\/a> Highways & Engineering department. One of my jobs there was as a computer operator, running the programmes that modelled the horizontal and vertical alignments of the Avon Ring Road<\/a> (now often called the Bristol Ring Road). I turned these models into the huge A0 drawings used as the plans for the scheme. I also ran programmes to simulate traffic flows, and mystical ‘cost\/benefit analysis’ models.<\/p>\n Even as someone relatively new to computing, it was obvious how much more productive were the design teams using the departmental computer system than those teams that weren’t. That got me excited. I could see that the scheme would take for years to design without the computer. Like so many other schemes in and around Bristol, it was riven by political NIMBYism that required multiple changes to the design. Without the ability to redesign sections quickly the Avon Ring Road would never have been completed – like the infamous Three Lamps Junction<\/a> scheme.<\/p>\nHow it all started<\/h4>\n