Autocad introduction

AutoCAD INTRODUCTION 

• CAD (Computer Aided Drafting and Design) as the name itself suggests, is much more than just drawing lines for design purposes by electronic means. There are various reasons for using CAD;
• The most potent driving force is competition. To make their name in business, companies used CAD to draft better designs quicker and much more cheaper than their competitors. 
• Productivity is boosted by a CAD program enabling you to easily draw polygons, ellipses, multiple parallel lines and multiple parallel curves that comprise a design. 
• Various Automatic features like fillets and chambers help increase the speed of designing. 
• The ability of the software ro "snap" Automarically to create particular geometric points and features will spread the accurate positioning of line work. - 
• Copy, Rotate and Mirror facilities also come in very handy while drawing symmetrical parts. 
• Several hatch patterns are supplied with CAD programs. Filling the areas in various colors is a requirement in artwork and presentations. 
• Different style fonts for text are always supplied with every CAD programs.
• Provisions like importing different graphic file formats and scanning of material (photographs) into a CAD program are also assets especially as the image can be manipulated, retouched and animated, 
• The feature of zooming in and out is an asset, as well while drawing to scale. CAD information is stored in digital form and hence, irrespective of the size of the final printed drawings, it is possible to accurately dimension components automatically.
• Anothet advantage of a CAD system is its ability to store entities, which are frequently applied on drawings, Libraries of regularly used parts can be purchased separately or can be created by the draftsman. For repetitive se on a drawing, any particular item could be retrieved and positioned in seconds, also oriented at any angle to suit particular circumstances.
• Using CAD products, assembly drawings can be constructed by incorporating the existing component drawings onto the assembly drawing and positioning them accordingly. 
• Earlier, engineers and draftsman wasted almost 30% of precious time looking for drawings and other documents. Editing drawings to effect revisions and produce updated parts lists is quick and easy using a CAD product.
• While working on paper, applying revisions to the drawing as per the customer's requirements, demanded drawing the whole design all over again. Whereas, with CAD, changes and/or corrections can be easily made, and the revised design printed in minutes. Or it can also be e-mailed or transmitted via the internet instantly. 
• Several CAD programs includle a macro or an add-on programming language that allow Customizing it. Customizing your CAD program to suit your specific needs and implementing your ideas can make the CAD " System unique
• The biggest contribution of computers to the design process is soft prototyping-the process of creating a 3D-computer model of a design that can be subjected to computer-based testing, Soft prototypes are almost faster and cheaper to build than real prototypes and are often better at their main activity than real ones; this is because model shop prototypes usually different from those ultimately used for the use processes and materials production version of the product. 
• Presentation programs with Rendering Models and animation in 3D form a large part of selling and advertising in today's competitive market.