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A Quick Guide to CAD (Computer Aided Designing)

CAD (or Computer Aided Designing) is employed by engineers to create 2-D and 3-D models of the proposed structures and systems using computer technology so they can be reproduced optimally without any (or minimal) errors. Previously, such technical drawings were done manually and CAD is a major breakthrough in this field as it helps create better, more realistic, and comprehensive designs. Not only are the designs created through this technology, but also vital information (regarding the processes, dimensions, materials etc which are integral to the construction) is captured. It is only on the basis of the approval of these designs that real-life models are created.

The role played by CAD has been widely acknowledged in the field of designing automobiles, ships, architecture, aircrafts, engineering etc. Prosthetics is another area that has benefited greatly from Computer Aided designing. Artificial limbs and extensions (for those who have been rendered incapacitated or have congenital defects) are best designed using CAD. CAD is also used in the designing of a wide variety of objects ' from homes, skyscrapers and offices to small containers, bottles etc. In the entertainment industry CAD has contributed significantly to animation. In movies, the special effects that we see - double roles, digitally created characters, Harry Potter and all the charms and spells - are all thanks to CAD. CAD has thus assisted in a plethora of activities for diverse fields like engineering, medicine, entertainment etc.

The ease of 3-D dimensions, that CAD offers, gives it a definite edge over manual designing. They are, in fact, life-like designs and give the user a feel of actually cutting, inserting and modifying the model. Also, with 3-D it is possible to view a design from all possible angles, and even inside out, imparting greater flexibility and ease to the designer. 3-D and Cinema 4D technology have been responsible for many of the Hollywood animation hits including Open Season and Monster House.

CAD requires certain specific specialist software and operating systems. Incorporating CAD on personal computers has increased its availability to even small-scale organizations that do not have all the sophisticated hardware and software technology. Windows, MAC, Linux, MAC OS X all support CAD. For input, while the mouse is commonly used, digitised pens, graphic tablets etc are used for greater precision and ease.

With all the advantages - ease of input, better precision, compatibility with most operating systems, recent cost reductions, easy availability, new developments - CAD surely seeks (and gets) preference over manual drafting and designing. Also it is easier to incorporate modifications, additions and enhancements in the CAD-created designs and models as compared to manual formats. Easy-to-work-with user interfaces, user oriented designing options, apart from the low cost technology are all results of recent developments in the field of CAD. So, the work of CAD designers is getting more and more simplified with the new technological developments.

There is a lot that is being done to further improve CAD or computer aided designing. But even in its current state and form, CAD is able to provide real benefits in terms of productivity and quality. Moreover, the scope and use of CAD is expanding to newer areas and fields.; this means there is a lot that we can look forward to in the near future.

Read more about CAD and teknisk tegning at Noroff.no


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