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MAE%201004_Lecture%2012_FINAL_Chapter_7_vugph%20-%20Spring%202011%20%5bCompatibility%20Mode%5d

# MAE%201004_Lecture%2012_FINAL_Chapter_7_vugph%20-%20Spring%202011%20%5bCompatibility%20Mode%5d

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Unformatted text preview: MAE 1004 MAE 1004 Midterm exam on March 2 (Wed.) in class Today’s topics topics HW #4 solution Practice problems (multiview and missing-line) ngChapter 7 Multiview Projection (continued) 2/28/2011 1 Midterm exam on March 2 (Wed.) in class (3:45 pm to 4:35 pm) in Duques 151 Closed book exam Bring pencils, ruler, and eraser [NO borrowing] [NO Properly prepared pencils for construction line, VL, HL, and CL Construction lines must be light lines must be light Must use ruler in the exam Be punctual; 50 minute exam (time extension not possible) 50 Multiview drawing and missing-line problems missingChapter 6 and Chapter 7 Principles and sample drawings in both chapters Lessons learned in HW assignments [HW #2 ~ #4] Textbook and HW assignments in the backpack Allow Professor Shen to go to each student without trouble 2 MAE MAE 1004 HW #4 [[due Feb. 23 (Wed.) in class at 3:45 pm] due Fill-in-table problem (25%) * Draw [1] the miter line [very light] (5%) li [2] construction lines (vertical & horizontal lines) to correlate the same feature in different views. * Fill in the numbers (e.g., 14-19) in each empty box of the table. (20%) 3 Must use ruler to drawing vertical and horizontal construction lines (including the co miter line) when analyzing a multiview drawing. 26 - 4 Must use ruler to drawing vertical and horizontal construction lines (including the miter line) when analyzing a multiview li drawing. 26 - 5 MissingMissing-line problem #1 (25%) All lines shown are valid – cannot erase* 1. Use ruler, draw construction lines & the miter line [very light] (5%) 2. Use ruler, provide all necessary visible lines and hidden lines (20%) 3. Optional: use the isometric graph paper (below) to draw the isometric view 6 Must draw Miter line correctly Must use ruler 7 MissingMissing-line problem #2 (25%) All All lines shown are valid – cannot erase* 1. Use ruler, draw construction lines the miter line [very light] (5%) 2. Use ruler, provide all necessary visible lines and hidden lines (20%) 3. Optional: use the isometric graph paper (below) to draw isometric view to 8 Must draw Miter line correctly Must draw Miter line correctly Must use ruler 9 10 MissingMissing-line problem #3 (25%) All All lines shown are valid – cannot erase* 1. Use ruler, draw construction lines the miter line [very light] (5%) 2. Use ruler, provide all visible lines, hidden lines, & center lines (20% center 3. Optional: use the square graph paper ((below) to draw oblique projection use 11 Must draw Miter line correctly Must use ruler 12 13 Multiview Multiview drawing problem 3 4 inclined surface Rear view 4 4 2 1 3 2 14 7 (6+1) Front View 14 15 Draw the front view first. Why? Must use ruler (for accuracy) (f 1. Primary visible lines visible lines 2. Secondary visible lines 3. Hidden lines 4. Center lines 16 17 18 19 20 Front View 21 MAE 1004 MAE 1004 Engineering Drawing and Engineering Drawing and Computer Computer Graphics Chapter 7 Multiview Projection 22 Normal Surfaces 23 Use Miter line to drawing the hidden line Inclined Surfaces 24 1. Primary visible lines 2. Secondary visible lines 3. Hidden lines li Oblique Surface * Use ruler to drawing vertical and horizontal construction lines (and miter line) when analyzing a multiview drawing. 25 Study/analyze sample multiview drawings in Chapter Chapter 6 and Chapter 7 for Midterm Exam Verify (use ruler) - all the lines shown make sense (VL, HL, CL) VL VL – thick (0.7 mm) and dark thick (0.7 mm) and dark HL (0.35 mm thickness) – dash: 4 mm; gap: 1 mm; (0.35 usually no gap; when to leave a gap? CL (0.3 mm thickness) – dash: 5 mm; gap: 2 mm (0.3 Use Use proper drawing techniques (e.g., ‘L’ and “T” proper drawing techniques (e and when when hidden lines join) Questions? Use Prof. Shen’s office hours Sh 26 27 28 29 Study the views in the drawing principle textbook (check all lines (check all lines – use a ruler to correlate lines or features in ruler to correlate lines or features in different views; use the Miter Line; ask questions; …). 30 31 32 33 34 35 36 37 38 39 ...
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