1 / 30

# Chapter 6 - PowerPoint PPT Presentation

Print handouts Select File, Print Edit the following selections to read: Select the OK button. Chapter 6 – Pictorial Sketching . Chapter 6 – Pictorial Sketching . Projection Systems . Page 169. Multiview vs Axonometric Projection. Page 170, Figure 6.2. Overview.

Related searches for Chapter 6

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about 'Chapter 6 ' - mike_john

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Select File, Print

Edit the following selections to read:

Select the OK button

### Chapter 6 – Pictorial Sketching

Page 169

Page 170, Figure 6.2

• Previous discussion centered on multiview drawings -2D orthographic projections (Chap 5)

• Focus now on pictorial drawings which look more like pictures than a multiview drawing (3D).

• Easier to visualize design

• Sometimes added to multiview drawing for clarification

• Good for marketing, shows assembly, inspect fits, conceptual ideas

• Not good for dimensioning/manufacturing (can’t show detail)

Isometric drawings are frequently used to show how parts assemble as in this automobile power module.

• We will focus on isometric sketching.

• Note, all angles are equal, and all line segments are equal (cube)

Page 154

Page 155

Isometric projections are foreshortened because the object is tipped with respect to the viewing plane. Isometric sketches, or drawings, are not usually foreshortened because they still appear proportionate when showing the dimensions full size along isometric axis lines. It is easier just to sketch the full dimension.

3D - Isometric

Axis?

Views?

Top

Top

Front

R Side

Front

R Side

2D - Orthographic

3D - Isometric

Axis?

Views?

Top

Top

Front

R Side

Front

R Side

2D - Orthographic

3D - Isometric

Axis?

Views?

Dimensions?

Top

Top

Depth

H

Front

R Side

Width

D

W

Isometric Line

Isometric Plane

Height

Front

R Side

2D - Orthographic

Hidden lines are not usually shown in isometric sketches unless they are needed to show a feature that would be unclear.

Usually the orientation for the isometric drawing should be chosen so that hidden lines aren’t needed.

Holes are assumed to go completely through the object unless their depth is indicated with a note or with hidden lines.

H

Isometric Plane

D

Non-isometric Line

W

W

D

H

1st Position

Axis: 1st Position VS 2nd Position

1. Box in overall dimensions.

2. Which view is most descriptive? Sketch as much of it as you can.

Non-isometric Plane

2nd Position

• Pro/ENGINEER (planes)

¼” GRID

Page 158

To locate a feature such as the upper block, make measurements from an existing corner as shown here.

0, 0, 0

Plotting Points

1. Number the plane you want to locate.

2. Number the plane in the other views.

3. Locate the plane in the isometric view point by point.

1

Point 1:

.5,

1.5,

.5

• 4

• 2 1

2, 3, 1,4

1, 2 4, 3

0, 0, 0

W, H, D

1. Number the plane you want to locate.

2. Number the plane in the other views.

3. Locate the plane in the isometric view point by point.

2

1

Point 1:

.5, 1.5, .5

• 4

• 2 1

Point 2:

1.5,

1.5,

.5

0, 0, 0

2, 3, 4, 1

1, 2 4, 3

0, 0, 0

0, 0, 0

1. Number the plane you want to locate.

2. Number the plane in the other views.

3

3. Locate the plane in the isometric view point by point.

2

4

1

Point 1:

.5, 1.5, .5

• 4

• 2 1

Point 2:

1.5, 1.5, .5

Point 3:

1.5, 1.5, 1

Point 4:

.5, 1.5, 1

0, 0, 0

2, 3, 4, 1

1, 2 4, 3

0, 0, 0

0, 0, 0

1. Number the plane you want to locate.

2. Number the plane in the other views.

3

4’

3. Locate the plane in the isometric view point by point.

2

1’

4

1

Point 1:

.5, 1.5, .5

• 4

• 2 1

, 4’

Point 2:

1.5, 1.5, .5

Point 1’:

.5, 2, .5

, 1’

Point 4’:

.5, 2, 1

0, 0, 0

1’,

4’

2, 3, 1,4

1, 2 4, 3

0, 0, 0

0, 0, 0

3

2’

Plotting Points

1. Number the plane you want to locate.

2. Number the plane in the other views.

3

4’

3. Locate the plane in the isometric view point by point.

2

1’

4

1

Point 1:

.5, 1.5, .5

• 4

• 2 1

, 3’

, 4’

Point 2:

1.5, 1.5, .5

Point 2’:

1.5, 2, .5

, 2’

, 1’

Point 3’:

1.5, 2, 1

0, 0, 0

2’,

1’, 4’

3’

2, 3, 4, 1

1, 2 4, 3

0, 0, 0

0, 0, 0

1. Number the plane you want to locate.

3’

2. Number the plane in the other views.

2’

4’

3. Locate the plane in the isometric view point by point.

2

1’

4

1

Point 1:

.5, 1.5, .5

• 4

• 2 1

, 3’

, 4’

Point 2:

1.5, 1.5, .5

Point 2’:

1.5, 2, .5

, 2’

, 1’

Point 3’:

1.5, 2, 1

0, 0, 0

2’,

1’, 4’

3’

2, 3, 4, 1

1, 2 4, 3

0, 0, 0

0, 0, 0

1. Number points.

2. Locate axis (0,0,0) (W,H,D)

3’

3. Locate each point.

4. Connect points.

3

1’

5. Darken appropriate lines.

2’

1’

3’

2’

1

2

3

2

1

3, 3’

1, 1’

Point 1?

.75, 2, 0

Point 3?

2, 2’

1.5, 2, 0

Points

1,’, 2’, & 3’?

Point 2?

1.5, 1.25, 0

1. Number points.

2. Locate axis (0,0,0) (W,H,D)

3’

3. Locate each point.

4. Connect points.

3

1’

5. Darken appropriate lines.

2’

1’

3’

2’

1

2

3

2

1

3, 3’

1, 1’

Point 1?

.75, 2, 0

Point 3?

2, 2’

2.25, 2, 0

Points

1,’, 2’, & 3’?

Point 2?

1.5, 1.25, 0

Page 157

Inclined surfaces can not be measured along inclined lines in an isometric sketch. To locate inclined surfaces you must make measurements along the isometric axis lines.

Locate the center of the circle.

.5, 1.0625, .75

Point 1 coordinates?

1

1

1

1

Point 1:

0, 0, .625

.625, .5, 1.375

Point 2:

Point 3:

.625, ..5, 625

0, 0, .1.375

Point 4:

• 3 4

• 2 1

3

2

4

1

• 2 3

• 1 4

2, 3

1, 4

Point 1:

0, 0, .625

.625, .5, 1.375

Point 2:

Point 3:

.625, .5, 625

0, 0, .1.375

Point 4:

• 3 4

• 2 1

3

2

4

1

• 2 3

• 4

2, 3

1, 4

• Lightly show all construction lines (or you will loose points)