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Lecture 1 Friday, 01 May 2015 1 ENGINEERING GRAPHICS 1E7 Lecture 1: Introduction Lecturer: Dr. Bidisha Ghosh (bghosh@tcd.ie) Slide 2 Course Structure Hand Drawing (part 1) -Dr. B. Ghosh Hand Drawing (part 2) -Dr. G. ODonnell Graphics AutoCAD-Dr. S. Pavia Pspise--Dr. A. Kokaram CAE Slide 3 Assessment Examination: 65% of the overall mark 3 sections (A, B and C) 2 questions per section 3 questions to be answered, one from each section Dr B. Gosh : Sections A and B Dr G. ODonnell : Section C Labs 35% - assessed by coursework 10 % AutoCAD 10 % Pspice 10% D.O. Tutorials Dr B. Gosh 5 % D.O. Assignment Dr G. ODonnell Slide 4 Time Table Slide 5 Lecture 1 Friday, 01 May 2015 5 Syllabus Hand Drawing 1 Basic Construction Orthographic Projections Isometric Projections Auxiliary Views Perspective : One-Point Perspective : Two-Point Slide 6 Lecture 1 Friday, 01 May 2015 6 Aim of the Course Knowledge of engineering drawing instruments Understanding and interpretation of technical drawings Ability to develop projections of a 3D object Slide 7 Lecture 1 Friday, 01 May 2015 7 Evaluation Examination (Sections A & B) (2/3 of the total examination marks) Continuous Assessment (10% of the total course marks) four drawing office tutorials Slide 8 Lecture 1 Friday, 01 May 2015 8 Waterfall M. C. Escher Technical drawing is the language of engineers and designers Slide 9 Lecture 1 Friday, 01 May 2015 9 Topics of Interest Drawing Instruments Lines Dimensioning Slide 10 Lecture 1 Friday, 01 May 2015 10 1.Drawing Board DRAWING INSTRUMENTS 1 Slide 11 Lecture 1 Friday, 01 May 2015 11 DRAWING INSTRUMENTS 2 A Series Formats (mm) A0841 1189 A1594 841 A2420 594 A3297 420 A4210 297 A5148 210 A6105 148 A774 105 2. Drawing Sheets Slide 12 Lecture 1 Friday, 01 May 2015 12 DRAWING INSTRUMENTS 3 Layout of a Drawing Sheet Slide 13 Lecture 1 Friday, 01 May 2015 13 Tee square/ Drafting Machine DRAWING INSTRUMENTS 4 Slide 14 Lecture 1 Friday, 01 May 2015 14 Set squares (a pair) DRAWING INSTRUMENTS 5 Slide 15 Lecture 1 Friday, 01 May 2015 15 Irregular/ French curves DRAWING INSTRUMENTS 6 Slide 16 Lecture 1 Friday, 01 May 2015 16 Compasses Divider Protractor Ruler/Scale Pencil, Eraser DRAWING INSTRUMENTS 7 Slide 17 Lecture 1 Friday, 01 May 2015 17 TYPES OF LINES 3 Main Types DRAWING LINES 1 Slide 18 Lecture 1 Friday, 01 May 2015 18 Lines to aid understanding DRAWING LINES 2 Slide 19 Lecture 1 Friday, 01 May 2015 19 DIMENSIONING 1 Dimension Lines (DL) Position of DL Slide 20 Lecture 1 Friday, 01 May 2015 20 DIMENSIONING 2 Alignment of DL DL of Small Features Dimensioning Angles Dimensioning Circles Slide 21 Lecture 1 Friday, 01 May 2015 21 DIMENSIONING 3 Slide 22 Lecture 1 Friday, 01 May 2015 22 DIMENSIONING 4 Correct Practice of Dimensioning Drawing should only carry dimensions needed to manufacture Slide 23 Lecture 1 Friday, 01 May 2015 23 Reference Books Technical Draughtsmanship By Eanna OBroin Engineering Drawing with Worked Examples By M.A. Parker & F. Pickup Technical Drawing By F. E. Giesecke, A. Mitchell, H. C. Spencer, I. L. Hill, J. T. Dygdon, J. E. Novak Slide 24 Lecture 1 Friday, 01 May 2015 24 Assignment for Thursday! Get your instruments sorted- buy them or borrow them