Chapter2A_SketchingandText - IE205 Engineering Graphics...

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Chapter 2: Sketching and Text (Lecture A)
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2 of 26 Lecture Outline Technical sketching (2.1) Sketching technique (2.2) Proportions and construction lines (2.3) Introduction to projections (2.4) Multiview sketching technique (2.5) Multiview sketches (2.6) Lettering (2.8) Next class
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3 of 26 Objectives Define technical sketching (p.17 of Ch.2) Understand how sketching integrates into the design process (p.18 of Ch.2) Identify and define two types of sketches (pictorial & multiview – Create a design sketch using pencil Identify and use sketching tools (p.19 of Ch.2) Use grid paper to create sketches (p.20 of Ch.2) Lay out a sketch using proportions (Section 2.5 of Ch.2) Understand the difference between pictorial and multiview projection (Section 2.4 of Ch.2) Create a perspective sketch, an isometric sketch, an oblique sketch, and a multivew sketch (Section 2.6 of Ch.2) Identify the types and precedence of lines (Section 2.5 of Ch.2) Follow good hand-lettering practice (Section 1.16 of Ch.1)
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4 of 26 Technical Sketching (2.1) The process of producing a rough, preliminary drawing representing the main features of a product Generally less finished, structured, or restricted, and less time for its creation Tools include pencil, eraser, and paper (grid or blank) Means to create  technical drawings Level of detail  of freehand  technical  drawing
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5 of 26 Technical Sketching (con’t) Technical sketches: used extensively in the first (ideation) stage of the design process to explore and solidify design ideas that form in the mind’s eye
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6 of 26 Technical Sketching (con’t) Transforming your ideas into tangible graphic images serves both as a permanent record of those ideas and as a means of encouraging creative thinking What’s the difference between the two figures below?
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7 of 26 Technical Sketching (con’t) Rough sketch Pictorial sketch Multi-view sketch Shaded  sketch
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Chapter2A_SketchingandText - IE205 Engineering Graphics...

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