Pictorial Drawing - Technical...
Transcript of Pictorial Drawing - Technical...
![Page 1: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/1.jpg)
Pictorial Drawing 1
Pictorial Drawing -
Technical Illustration
Sacramento City College
Engineering Design Technology
![Page 2: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/2.jpg)
2 Pictorial Drawing
Pictorial Drawing
Pictorial drawing is
part of graphic language.
Used in Engineering
Architecture
Science
Electronics
Technical illustration, and
Other professions.
![Page 3: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/3.jpg)
3 Pictorial Drawing
Pictorial Drawing
Examples of pictorial drawing use:
Architects Use pictorial drawing to show what a finished
building will look like.
![Page 4: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/4.jpg)
4 Pictorial Drawing
Pictorial Drawing
![Page 5: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/5.jpg)
5 Pictorial Drawing
![Page 6: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/6.jpg)
6 Pictorial Drawing
![Page 7: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/7.jpg)
7 Pictorial Drawing
![Page 8: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/8.jpg)
8 Pictorial Drawing
![Page 9: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/9.jpg)
9 Pictorial Drawing
![Page 10: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/10.jpg)
10 Pictorial Drawing
![Page 11: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/11.jpg)
11 Pictorial Drawing
![Page 12: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/12.jpg)
12 Pictorial Drawing
Pictorial Drawing
Examples of pictorial drawing use:
Ad agencies Use pictorial drawing to display new products.
![Page 13: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/13.jpg)
13 Pictorial Drawing
![Page 14: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/14.jpg)
14 Pictorial Drawing
![Page 15: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/15.jpg)
15 Pictorial Drawing
![Page 16: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/16.jpg)
16 Pictorial Drawing
![Page 17: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/17.jpg)
17 Pictorial Drawing
![Page 18: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/18.jpg)
18 Pictorial Drawing
Pictorial Drawing
Pictorial drawing is often used in exploded drawings on production and assembly drawings.
Refer to Figure 12-1
![Page 19: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/19.jpg)
19 Pictorial Drawing
![Page 20: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/20.jpg)
20 Pictorial Drawing
Pictorial Drawing
Views are made to illustrate the operation of machines, and equipment.
Pictorial sketches are used to help convey ideas that are hard to describe in words.
![Page 21: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/21.jpg)
21 Pictorial Drawing
![Page 22: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/22.jpg)
22 Pictorial Drawing
Pictorial Drawing
![Page 23: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/23.jpg)
23 Pictorial Drawing
![Page 24: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/24.jpg)
24 Pictorial Drawing
![Page 25: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/25.jpg)
25 Pictorial Drawing
Pictorial Drawing
Pictorial drawing can be
Perspective Views
Isometric Views
Oblique Views
![Page 26: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/26.jpg)
26 Pictorial Drawing
Pictorial Drawing
Pictorial drawing can be
Perspective Views Show object as it actually looks to the eye.
Commonly used in architectural work.
Have non-parallel lines (x, y, z)
![Page 27: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/27.jpg)
27 Pictorial Drawing
![Page 28: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/28.jpg)
28 Pictorial Drawing
![Page 29: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/29.jpg)
29 Pictorial Drawing
Pictorial Drawing
Pictorial drawing can be
Isometric Views Easier to draw than perspective views.
Do not look as good as perspective views.
Commonly used in engineering work.
Have parallel lines (x, y, z)
![Page 30: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/30.jpg)
30 Pictorial Drawing
![Page 31: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/31.jpg)
31 Pictorial Drawing
![Page 32: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/32.jpg)
32 Pictorial Drawing
![Page 33: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/33.jpg)
33 Pictorial Drawing
Pictorial Drawing
Pictorial drawing can be
Oblique Views Easier to draw than perspective views.
Show less distortion than isometric views.
Have parallel lines (x, y, z)
Think “Front view + depth”.
![Page 34: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/34.jpg)
Pictorial Drawing 34
Isometric Drawing
![Page 35: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/35.jpg)
35 Pictorial Drawing
Isometric Drawing
Pictorial drawings, in general, are made to show how something looks.
![Page 36: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/36.jpg)
36 Pictorial Drawing
Isometric Drawing
Since hidden lines are “not part of the picture” they are normally left out and are not drawn in isometric drawings.
![Page 37: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/37.jpg)
37 Pictorial Drawing
Isometric Drawing
Isometric drawing is
Similar to isometric sketching except that it is created using instruments.
![Page 38: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/38.jpg)
38 Pictorial Drawing
Isometric Drawing
Objects are aligned with three isometric axes at 120o angles to each other.
Refer to Figure 12.4.
![Page 39: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/39.jpg)
39 Pictorial Drawing
Isometric Axes
![Page 40: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/40.jpg)
40 Pictorial Drawing
Isometric Axes
![Page 41: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/41.jpg)
41 Pictorial Drawing
Figure 12-3
![Page 42: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/42.jpg)
42 Pictorial Drawing
Isometric Drawing
X, Y and Z axes
Must remain at 120 degrees to each other.
![Page 43: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/43.jpg)
43 Pictorial Drawing
Isometric Drawing
Vertical Orientation - Regular Position
First position – the axes meet at the upper front corner of the
object
Second position – the axes meet at the lower front corner of the
object.
![Page 44: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/44.jpg)
44 Pictorial Drawing
Figure 12-4
![Page 45: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/45.jpg)
45 Pictorial Drawing
Figure 12-4
![Page 46: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/46.jpg)
46 Pictorial Drawing
Isometric Drawing
Horizontal Orientation - Regular Position
First position – the axes meet at the left front corner of the
object
Second position – the axes meet at the right front corner of the
object.
![Page 47: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/47.jpg)
47 Pictorial Drawing
Figure 12-4
![Page 48: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/48.jpg)
48 Pictorial Drawing
Figure 12-4
![Page 49: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/49.jpg)
Pictorial Drawing 49
Isometric Lines and
Non-Isometric Lines
![Page 50: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/50.jpg)
50 Pictorial Drawing
Isometric Lines
Any line parallel to one of the isometric axes is called an isometric line.
![Page 51: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/51.jpg)
Pictorial Drawing 51
Non-isometric Lines
![Page 52: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/52.jpg)
52 Pictorial Drawing
Non-isometric Lines
Lines that are not parallel to one of the axes are called non-isometric lines.
![Page 53: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/53.jpg)
53 Pictorial Drawing
Non-isometric Lines
Measurements can be made only on isometric lines.
Non-isometric lines do not show in their true length so they cannot be measured.
![Page 54: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/54.jpg)
54 Pictorial Drawing
Non-isometric Lines
![Page 55: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/55.jpg)
55 Pictorial Drawing
Non-isometric Lines
![Page 56: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/56.jpg)
56 Pictorial Drawing
Drawing Non-Isometric Lines
To draw non-isometric lines:
Locate the end points first.
Use the Box Method.
Refer to Figure 12-6.
![Page 57: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/57.jpg)
57 Pictorial Drawing
Drawing Non-Isometric Lines
![Page 58: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/58.jpg)
58 Pictorial Drawing
Drawing Angles
Follow the procedure shown in Figure 12-7
Construct angle parts AO, AB, OB
Transfer AO and AB to the isometric cube
Lay off AO on the base of the cube
Draw AB parallel to the vertical axis
Finally, connect points O and B to complete the isometric angle
![Page 59: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/59.jpg)
59 Pictorial Drawing
Drawing Angles
![Page 60: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/60.jpg)
Pictorial Drawing 60
Isometric Circles
![Page 61: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/61.jpg)
61 Pictorial Drawing
Isometric Circles
In isometric drawings, circles appear as ellipses.
![Page 62: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/62.jpg)
62 Pictorial Drawing
Drawing Isometric Circles
Use the four centered approximation method to draw the ellipse.
Refer to Figure 12-9.
![Page 63: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/63.jpg)
63 Pictorial Drawing
Drawing Isometric Circles
First, draw an isometric square, with the sides equal to the diameter of the circle
![Page 64: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/64.jpg)
64 Pictorial Drawing
Drawing Isometric Circles
Use a 30o 60o triangle to locate points A, B, C, D and points 1, 2, 3, 4
![Page 65: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/65.jpg)
65 Pictorial Drawing
Drawing Isometric Circles
Use A and B as centers, and radius = A2, draw the arcs
![Page 66: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/66.jpg)
66 Pictorial Drawing
Drawing Isometric Circles
Use C and C as centers, radius = C4, draw arcs to complete the ellipse
![Page 67: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/67.jpg)
67 Pictorial Drawing
Isometric Cylinder
To draw an isometric cylinder
Use Figure 12-9 to construct the top ellipse.
Drop centers at a distance equal to the height of the cylinder.
Draw three arcs using the same radii as the ellipse at the top. Notice that the radii for the arcs at the bottom
match those at the top.
![Page 68: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/68.jpg)
68 Pictorial Drawing
Isometric Cylinder
![Page 69: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/69.jpg)
69 Pictorial Drawing
Isometric Quarter Rounds
To draw quarter rounds
Refer to Figure 12-12.
Follow procedure for quarters of circles.
In each case measure the radii along the tangent lines from the corner.
Then draw the perpendiculars to locate the centers for the isometric arcs.
Figure 12-13 shows how to draw outside and inside corner arcs.
![Page 70: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/70.jpg)
70 Pictorial Drawing
Isometric Quarter Rounds
![Page 71: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/71.jpg)
Pictorial Drawing 71
Isometric Templates
![Page 72: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/72.jpg)
72 Pictorial Drawing
Isometric Templates
Isometric templates come in a variety of forms
15o, 30o, 45o, 50o, 60o
They are convenient and can save you time.
![Page 73: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/73.jpg)
73 Pictorial Drawing
![Page 74: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/74.jpg)
Pictorial Drawing 74
Creating an Isometric Drawing
![Page 75: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/75.jpg)
75 Pictorial Drawing
Creating an Isometric Drawing
Measure True Length Lines from Orthographic Projection drawings.
Transfer Front View X and Y
Top View X and Z
Right Side Y and Z
![Page 76: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/76.jpg)
76 Pictorial Drawing
Creating an Isometric Drawing
Filler Block Example
Refer to Figure 12-17.
![Page 77: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/77.jpg)
77 Pictorial Drawing
Creating an Isometric Drawing
Filler Block Example
Draw the isometric axes in the first position.
![Page 78: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/78.jpg)
78 Pictorial Drawing
Creating an Isometric Drawing
Filler Block Example
Measure off the width, the depth and the height of the block on the three axes.
![Page 79: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/79.jpg)
79 Pictorial Drawing
Creating an Isometric Drawing
Filler Block Example
Draw lines parallel to axes to make the isometric drawing of the block.
![Page 80: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/80.jpg)
80 Pictorial Drawing
Creating an Isometric Drawing
Filler Block Example
![Page 81: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/81.jpg)
81 Pictorial Drawing
Reversed Axes
To draw an object as if viewed from below, reverse the position of the axes.
Follow example in Figure 12-20.
![Page 82: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/82.jpg)
82 Pictorial Drawing
Reversed Axes
![Page 83: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/83.jpg)
83 Pictorial Drawing
Creating an Isometric Drawing
When long pieces are drawn in isometric, make the long axis horizontal.
Refer to Figure 12-21
![Page 84: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/84.jpg)
Pictorial Drawing 84
Dimensioning Isometric Drawings
![Page 85: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/85.jpg)
85 Pictorial Drawing
Dimensioning Isometrics
Isometrics are seldom used as Working Drawings.
Working Drawings are the drawings used to actually construct the object.
Isometric drawings are seldom dimensioned
If dimensions are required, follow the newer unidirectional format.
Refer to Figure 12-22.
![Page 86: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/86.jpg)
86 Pictorial Drawing
Dimensioning Isometrics
![Page 87: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/87.jpg)
87 Pictorial Drawing
Dimensioning Isometrics-Manually
![Page 88: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/88.jpg)
Pictorial Drawing 88
Isometrics – Multiple Scales
![Page 89: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/89.jpg)
89 Pictorial Drawing
Isometrics-Multiple Scales
Isometric
Only one scale is used
Dimetric
Two scales are used.
Trimetric
Three scales are used.
![Page 90: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/90.jpg)
90 Pictorial Drawing
Isometrics-Multiple Scales
![Page 91: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/91.jpg)
Pictorial Drawing 91
Oblique Drawings
![Page 92: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/92.jpg)
92 Pictorial Drawing
Oblique Drawings
Oblique drawings are
Similar to isometric drawings,
Are drawn on three axes (X, Y, Z).
Two axes are parallel to the picture plane (the plane on which the view is drawn).
These two axes always are at right angles.
Think “Front View with depth”.
![Page 93: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/93.jpg)
93 Pictorial Drawing
Oblique Drawings
In isometric drawings, only one axis is parallel to the picture plane.
Refer to Figure 12-28.
![Page 94: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/94.jpg)
94 Pictorial Drawing
Oblique Drawings
Oblique drawings show an object as if viewed face on.
The object is seen squarely with no distortion.
![Page 95: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/95.jpg)
95 Pictorial Drawing
Oblique Drawing Rules
To create an oblique drawing:
Draw a front view, long side horizontal
Draw the depth
Refer to Figure 12-29.
![Page 96: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/96.jpg)
96 Pictorial Drawing
Oblique Drawing Rules
![Page 97: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/97.jpg)
97 Pictorial Drawing
Oblique Projection
Oblique projection is a way of showing depth.
Depth is shown by projector lines.
Projector lines represent receding edges of an object.
These lines are drawn at an angle other than 90o from the picture plane so they will be visible in the front view.
![Page 98: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/98.jpg)
98 Pictorial Drawing
Oblique Projection
Lines on these receding planes that are parallel to each other are drawn parallel.
Refer to Figure 12-30.
![Page 99: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/99.jpg)
99 Pictorial Drawing
Oblique Projection
Because oblique drawing can show one face of an object without distortion it has a distinct advantage over isometric.
Oblique drawings are useful for showing objects with irregular outlines.
![Page 100: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/100.jpg)
100 Pictorial Drawing
Oblique Drawing Types
Cavalier Oblique receding lines are drawn full length.
Normal Oblique. receding lines are drawn 3/4 length.
Cabinet Oblique. receding lines are drawn 1/2 length
named this way because it is often used in the furniture industry
Refer to Figure 12-32
![Page 101: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/101.jpg)
101 Pictorial Drawing
Oblique Drawing Types
![Page 102: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/102.jpg)
102 Pictorial Drawing
Oblique Constructions
Angles and Inclined Surfaces
Angles that are parallel to the picture plane are shown full size.
For all other angles, lay the angle off by locating both ends of the slanting line.
Remember to lay off angles by measurements parallel to one of the axes.
![Page 103: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/103.jpg)
103 Pictorial Drawing
Oblique Constructions
Oblique Circles
Use the four-center method for ellipses.
Ellipse templates give better results.
If you use a template, block the oblique circle as an oblique square.
![Page 104: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/104.jpg)
Pictorial Drawing 104
Perspective Drawings
![Page 105: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/105.jpg)
105 Pictorial Drawing
Perspective Drawings
A perspective drawing
Is a three-dimensional representation of an object as it looks to the eye from a particular point.
look the most like photographs of all pictorial drawings.
lines on the receding planes that are actually parallel are not drawn parallel.
These lines are drawn as if they were converging.
![Page 106: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/106.jpg)
106 Pictorial Drawing
Perspective Drawings
A perspective drawing
Is a three-dimensional representation of an object as it looks to the eye from a particular point.
![Page 107: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/107.jpg)
107 Pictorial Drawing
Perspective Drawings
A perspective drawing
look the most like photographs of all pictorial drawings.
![Page 108: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/108.jpg)
108 Pictorial Drawing
Perspective Drawings
In a perspective drawing
lines on the receding planes that are actually parallel are not drawn parallel.
These lines are drawn as if they were converging.
![Page 109: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/109.jpg)
109 Pictorial Drawing
![Page 110: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/110.jpg)
110 Pictorial Drawing
Perspective Drawings
Perspective drawing is the most realistic looking of the Pictorial drawing family.
Two types of perspective drawings:
One point.
Two point. Often used in architecture
![Page 111: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/111.jpg)
111 Pictorial Drawing
Perspective Drawing Definitions
Refer to Figure 12-40
Sight lines which lead from the points on the card and converge at the eye are called visual rays.
The picture plane is the plane on which the card is drawn.
The station plane is the point from which the observer is looking at the card.
A horizontal plane passes through the observer’s eye. Where it meets the picture plane, it forms the horizon line.
![Page 112: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/112.jpg)
112 Pictorial Drawing
Perspective Drawing Definitions
Where the ground plane on which the observer stands meets the picture plane, it forms the ground line.
The center of vision is the point at which the line of sight pierces the picture plane.
The line of sight is the visual ray from the eye perpendicular to the picture plane.
The point at which the receding axes meet (the projectors) is called the vanishing point.
![Page 113: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/113.jpg)
113 Pictorial Drawing
Perspective Drawing Definitions
![Page 114: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/114.jpg)
114 Pictorial Drawing
Perspective Drawing Definitions
If the object is seen from above, the view is aerial or bird’s eye view
If the object is seen from below, the view is ground or worm’s eye view
If the object is seen so that the line of sight is directly on it, the view is a normal view
![Page 115: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/115.jpg)
115 Pictorial Drawing
![Page 116: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/116.jpg)
116 Pictorial Drawing
![Page 117: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/117.jpg)
117 Pictorial Drawing
![Page 118: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/118.jpg)
118 Pictorial Drawing
![Page 119: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/119.jpg)
119 Pictorial Drawing
![Page 120: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/120.jpg)
120 Pictorial Drawing
Factors That Affect Appearance
In perspective drawing, the size of the object seems to change as you move toward or away from it.
Refer to Figure 12-42 for explanation
Each time the distance from the object is doubled, the object appears only half as large
![Page 121: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/121.jpg)
121 Pictorial Drawing
Factors That Affect Appearance
The shape of the object seems to change when viewed from a different position
Looking at a square directly, the edges are parallel.
Looking at it from an angle, the edges seem to converge
![Page 122: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/122.jpg)
122 Pictorial Drawing
One Point Perspective
One-point perspective,
has one vanishing point
also called parallel perspective.
Two point perspective drawings have two vanishing points.
Also called angular perspective
![Page 123: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/123.jpg)
123 Pictorial Drawing
![Page 124: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/124.jpg)
124 Pictorial Drawing
![Page 125: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/125.jpg)
125 Pictorial Drawing
![Page 126: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/126.jpg)
126 Pictorial Drawing
![Page 127: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/127.jpg)
Pictorial Drawing 127
Placing Views
Chapter 5 - Page 140
![Page 128: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/128.jpg)
128 Pictorial Drawing
Placing Views
The “working space” of a drawing is the area inside the border.
Objects are never drawn directly touching the border.
Objects are drawn so there is a space between the object and the border line.
Refer to Figure 5-28.
![Page 129: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/129.jpg)
129 Pictorial Drawing
Figure 5-28
![Page 130: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/130.jpg)
130 Pictorial Drawing
Figure 5-29
![Page 131: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/131.jpg)
131 Pictorial Drawing
Placing Views
1. Add the width and the depth of the object.
![Page 132: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/132.jpg)
132 Pictorial Drawing
Placing Views
1. Add the width and the depth of the object.
For the Base, Fig 5-63, p152,
The width is: 7.50”
The height is: 2.25” + 1.62”
The depth is: 3.25”
Width + depth = 7.50 + 3.25 = 10.75
![Page 133: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/133.jpg)
133 Pictorial Drawing
Placing Views
2. Measure the available drawing space inside the border using the same scale that will be used to draw the object.
![Page 134: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/134.jpg)
134 Pictorial Drawing
Placing Views
3. Subtract the total width of the objects from the width of the drawing space.
For the BASE Width + depth = 7.50 + 3.25 = 10.75
Available drawing space width = 14.0 14.0 – 10.75 = 3.25
Divide the remaining available space by 4. 3.25 / 4 = 0.8125
This is the amount of space that should be left for a border around the views.
![Page 135: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/135.jpg)
135 Pictorial Drawing
Figure 5-30
![Page 136: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/136.jpg)
136 Pictorial Drawing
Placing Views
3. Add the height and the depth of the object.
4. Subtract this total from the height of the drawing space. For the BASE
Height + depth = 3.87 + 3.25 = 7.12
Available drawing space height = 8.0 8.0 – 7.125 = 0.875
Divide the remaining available space by 4. 0.875 / 4 = 0.21875
This is the amount of space that should be left for a border around the views.
![Page 137: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/137.jpg)
137 Pictorial Drawing
Figure 5-30
![Page 138: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/138.jpg)
Pictorial Drawing 138
Locating and Transferring
Measurements
![Page 139: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/139.jpg)
139 Pictorial Drawing
Locating Measurements
Measurements made on one view can be transferred to another.
This process also insures accuracy.
Refer to Figure 5-33.
![Page 140: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/140.jpg)
140 Pictorial Drawing
Locating Measurements
![Page 141: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/141.jpg)
141 Pictorial Drawing
Locating Measurements
1. Draw upward from the Front view to locate width measurements in the Top view.
2. Draw downward from the Top View to locate width measurements on the Front View.
![Page 142: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/142.jpg)
142 Pictorial Drawing
Locating Measurements
![Page 143: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/143.jpg)
143 Pictorial Drawing
Locating Measurements
2. Draw across to the Side view from the Front view to locate height measurements
Use a similar method to project height measurements from the side view to the front view
![Page 144: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/144.jpg)
144 Pictorial Drawing
Locating Measurements
![Page 145: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/145.jpg)
145 Pictorial Drawing
Locating Measurements
Height of Front view - transfer to Right-side view.
Depth measurements show as vertical distances in the Top view and as horizontal distances in the the Right-side view.
![Page 146: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/146.jpg)
146 Pictorial Drawing
Locating Measurements
![Page 147: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/147.jpg)
147 Pictorial Drawing
Locating Measurements
3. Depth measurements show as
Vertical distances - Top view
Horizontal distances - Right-side view
To transfer these measurements use
Arcs
45o triangle
Dividers
Scale
![Page 148: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/148.jpg)
148 Pictorial Drawing
Locating Measurements
![Page 149: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/149.jpg)
149 Pictorial Drawing
Using Arcs to Transfer
![Page 150: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/150.jpg)
150 Pictorial Drawing
Using Scale to Transfer
![Page 151: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/151.jpg)
151 Pictorial Drawing
Using 45 Line to Transfer
![Page 152: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/152.jpg)
152 Pictorial Drawing
Summary of Steps
Follow a step-by-step method to insure accuracy
Carry all views along together
Do not attempt to finish one view before starting the others
Use a hard lead pencil (4H or 6H) and light, thin lines for preliminary (layout) lines
Use F, HB or H for final lines
![Page 153: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/153.jpg)
153 Pictorial Drawing
Summary of Steps
1. Consider the Characteristic View first.
2. Determine the number of views.
3. Locate the views.
4. Block in the views with light, thin layout lines.
5. Lay off the principal measurements.
![Page 154: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/154.jpg)
154 Pictorial Drawing
Summary of Steps
6. Draw the principal lines.
7. Lay off the measurements for details such as centers for arcs, circles and ribs.
8. Draw the circles and arcs.
9. Draw any additional lines needed to complete views.
![Page 155: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/155.jpg)
155 Pictorial Drawing
Summary of Steps
10. Darken the lines where necessary to make them sharp and black and of proper thickness
![Page 156: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/156.jpg)
156 Pictorial Drawing
![Page 157: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/157.jpg)
157 Pictorial Drawing
![Page 158: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/158.jpg)
158 Pictorial Drawing
![Page 159: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/159.jpg)
159 Pictorial Drawing
![Page 160: Pictorial Drawing - Technical Illustrationmedia.scc.losrios.edu/.../Pictorial_Drawing_Isometrics.pdfTransfer AO and AB to the isometric cube Lay off AO on the base of the cube Draw](https://reader031.fdocuments.in/reader031/viewer/2022020316/5b1c20d87f8b9a3c258f7de5/html5/thumbnails/160.jpg)
160 Pictorial Drawing