Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6e by Bert Boundy 1 Chapter Eight – Intersections & development of surfaces After studying this chapter and working through the problems you should be able to do the following: • constant parallel line developments of prisms and cylinders • construct radial line developments of pyramids and cones • draw the line of intersection between geometric surfaces and construct their development • construct the development of transition pieces using traingulation
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Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Chapter Eight –Intersections &
development of surfacesAfter studying this chapter and working through the problems you should be able to do the following:
• constant parallel line developments of prisms and cylinders
• construct radial line developments of pyramids and cones
• draw the line of intersection between geometric surfaces and construct their development
• construct the development of transition pieces using traingulation
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.1 –Regular right prism
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.2 –Truncated right prism
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.3 –Rectangular prism pipe elbow
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.4 –Hexagonal prism
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Figure 8.5 – Truncated hexagonal right prism
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Figure 8.6 –Oblique hexagonal prism
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.7 – Line of intersection of cylinder and cone—element method
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.8 – Line of intersection of cylinder and cone—cutting plane method
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.9 – Line of intersection of cylinder and cone—common sphere method
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.10 –Right cylinder
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Figure 8.11 –Truncated right cylinder
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Figure 8.12 –Oblique cylinder
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Figure 8.13 – Development of a four-piece elbow
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.14 – Oblique T
piece—equal diameter cylinders
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.15 – Offset T piece
—unequal diameter cylinders
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Figure 8.16 – Oblique cylindrical connecting pipe
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Figure 8.17 – Alternative method of determining the line of intersection
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Figure 8.18 – Right pyramid
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Figure 8.19 – Oblique pyramid—whole and truncated
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Figure 8.20 – Right cone
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Figure 8.21 – Right cone truncated parallel to the base
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.22 – Right cone truncated at an angle to the base
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.23 – Right cone-vertical cylinder intersection
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.24 – Truncated right cone-right cylinder intersection
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Figure 8.25 – Right cone-right cylinder oblique intersection
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Figure 8.26 – Oblique cone —whole and truncated
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Figure 8.27 – Oblique cone-oblique cylinder intersection
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Figure 8.28 – Breeches piece —equal angle, equal diameters
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Figure 8.29 – Breeches piece —unequal angle, equal diameters
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Figure 8.30 – Breeches piece —cylinder and two cones, equal angle
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Figure 8.31 – Square-to-rectangle transition piece
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Figure 8.32 – Round-to-round transition piece
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Figure 8.33 – Square-to-round transition piece
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Figure 8.34 – Oblique hood
Copyright 2002 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 6eby Bert Boundy
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Figure 8.35 – Rectangle-to-
rectangle, angular offset
transitionpiece
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