02 - Intro to Drawing

02 - Intro to Drawing - Computer Aided Drawing (CAD)

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Introduction to Drawing
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Contents Contents Overview Sketching Drawing tools Drawing sheets and layout Lettering Lines Scale Abbreviations
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Overview  Overview  Engineering graphics communication involves the use  of visual material to convey technical ideas and  problem solutions. Engineering or technical drawing – one of the most  widely used method. Definition of drawing: A graphic representation of an idea, concept or an entity which  actually or potentially exists in life.
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Overview Overview Importance: A way of communication between engineers at all stages of  For Visualisation, Communication and Documentation Visualisation The ability to mentally picture things that do not exist in front of the eyes. Communication The design solution should be communicated to others without ambiguity Documentation Permanent record of the solution for future reference.
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Overview Overview Types of drawing :  artistic technical  Illustrations rendering 15 10 R2.5
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Overview Overview Examples of different drawing types A dimensioned technical/mechanical drawing 3-D computer model of the interior of an office building
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Sketching Sketching
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Sketching Sketching 3 methods of creating technical drawings Technical sketching is  the process of producing a  rough preliminary drawing representing the main  features of a product or structure Normally done by freehand, generally less finished,  less structured/ restricted, & take less time to produce
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Sketching Sketching Technical sketches Used extensively in the first stage of design process to  visualise or convey ideas manufacture of a product
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Sketching Sketching Sketching tool Paper, pencils, eraser Sketching technique e.g. Straight line sketch Component (proportional sketch) Pictorial sketch In sketching, proportionality is important.  Even though it is a freehand sketch, the lines should be  relatively sharp and straight for a good quality sketch. Mechanical Sketched
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Sketching Sketching Sketching straight line
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Sketching Sketching Sketching circle Sketching circle Sketching component (proportional)
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Sketching Sketching Multi-view and pictorial sketches
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Engineering Graphics & Manual Drawing
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Engineering graphics Engineering graphics Drawings are widely used in engineering applications: 
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This note was uploaded on 01/29/2011 for the course EE 203 taught by Professor Gp.(r)muzaffarali during the Fall '10 term at College of E&ME, NUST.

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02 - Intro to Drawing - Computer Aided Drawing (CAD)

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