- 7-1 Introduction
- 7-2 Terminology and Conventions-ANSI
- 7-3 Adding Dimensions to a Drawing
- 7-4 Drawing Scale
- 7-5 Units
- 7-6 Dimensioning Holes and Fillets
- 7-7 Dimensioning Counterbored and Countersunk Holes
- 7-8 Angular Dimensions
- 7-9 Ordinate Dimensions
- 7-10 Baseline Dimensions
- 7-11 Locating Dimensions
- 7-12 Fillets and Rounds
- 7-13 Rounded Shapes-Internal
- 7-14 Rounded Shapes-External
- 7-15 Irregular Surfaces
- 7-16 Polar Dimensions
- 7-17 Chamfers
- 7-18 Symbols and Abbreviations
- 7-19 Symmetrical and Centerline Symbols
- 7-20 Dimensioning to a Point
- 7-21 Dimensioning Section Views
- 7-22 Dimensioning Orthographic Views
- Chapter Projects
This chapter is from the book
This chapter is from the book
This chapter is from the book
7-11 Locating Dimensions
There are eight general rules concerning the location of dimensions. See Figure 7-55.
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1 Locate dimensions near the features they are defining.
2 Do not locate dimensions on the surface of the object.
3 Align and group dimensions so that they are neat and easy to understand.
4 Avoid crossing extension lines.
Sometimes it is impossible not to cross extension lines because of the complex shape of the object, but whenever possible, avoid crossing extension lines.
5 Do not cross dimension lines.
6 Locate shorter dimensions closer to the object than longer dimensions.
7 Always locate overall dimensions the farthest away from the object.
8 Do not dimension the same distance twice. This is called double dimensioning and will be discussed in Chapter 8 in association with tolerancing.