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Copyright © 2009 by K. Plantenberg Restricted use only Chapter 5 Dimensioning in AutoCAD Topics.

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Presentation on theme: "Copyright © 2009 by K. Plantenberg Restricted use only Chapter 5 Dimensioning in AutoCAD Topics."— Presentation transcript:

1 Copyright © 2009 by K. Plantenberg Restricted use only Chapter 5 Dimensioning in AutoCAD Topics

2 Copyright © 2009 by K. Plantenberg Restricted use only Dimensioning: Topics Summary 5.1) IntroductionIntroduction 5.2) Dimension CommandsDimension Commands 5.3) Dimension StyleDimension Style 5.4) Dimension VariablesDimension Variables 5.5) The DIM PromptThe DIM Prompt 5.6) Associative DimensionsAssociative Dimensions 5.7) Annotative ObjectsAnnotative Objects

3 Copyright © 2009 by K. Plantenberg Restricted use only Dimensioning in AutoCAD Summary

4 Copyright © 2009 by K. Plantenberg Restricted use only Summary  What will we learn in Chapter 5? →The skills necessary to dimension an orthographic projection.  Key points →By default, dimensions are associative. If you manually type in a dimension, the associativity is broken.

5 Copyright © 2009 by K. Plantenberg Restricted use only Dimensioning in AutoCAD 5.1) Introduction

6 Copyright © 2009 by K. Plantenberg Restricted use only Introduction  AutoCAD automatically creates the dimensions and dimension text once a feature is selected.  Dimension appearance and properties may be adjusted in the Dimension Styles Manager window.

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8 Copyright © 2009 by K. Plantenberg Restricted use only Dimensioning in AutoCAD 5.2) Dimension Commands

9 Copyright © 2009 by K. Plantenberg Restricted use only Dimensions Panel

10 Copyright © 2009 by K. Plantenberg Restricted use only Leaders Panel Collect Multileaders Align Multileader

11 Copyright © 2009 by K. Plantenberg Restricted use only Dimensioning in AutoCAD 5.3) Dimension Style

12 Copyright © 2009 by K. Plantenberg Restricted use only Dimension Style  The Dimension Style Manager is used to create: →New dimension styles, →set the current style, →modify styles, →set overrides on the current style, →and compare styles.  Access using: DDIM, DIMSTYLE or from the Dimensions panel

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14 Copyright © 2009 by K. Plantenberg Restricted use only Multileader Style  The Multileader Style Manager is used to create: →New multileader styles, →set the current style, →and modify styles,  Access using: MLEADERSTYLE or from the Leaders panel.

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16 Copyright © 2009 by K. Plantenberg Restricted use only Dimensioning in AutoCAD 5.4) Dimension Variables

17 Copyright © 2009 by K. Plantenberg Restricted use only Dimension Variables  Dimension appearance may be modified by changing dimension variables. →These variables may be set in the Dimension Styles Manager.  It is not uncommon to change some of these variables on the fly within the Command window.

18 Copyright © 2009 by K. Plantenberg Restricted use only Dimension Variables  Commonly used dimension variables →DIMSCALE: This command sets the overall size or scale factor of the dimensions. →DIMTIX: Forces dimension text inside extension lines. →DDEDIT: Edits dimension text. →DIMCEN: Controls size of the center marks drawn by diameter and radial dimensions. →UPDATE: Applies the changes.  Other variables are given in section 5.4)

19 Copyright © 2009 by K. Plantenberg Restricted use only Dimensioning  Creating and modifying dimensions. Live Demonstration

20 Copyright © 2009 by K. Plantenberg Restricted use only Dimensioning in AutoCAD 5.5) The DIM Prompt

21 Copyright © 2009 by K. Plantenberg Restricted use only The DIM Prompt  Within the Dim prompt (the dimension mode), you can type in dimensioning commands that allow you to create and modify dimensions. →DIM: Accessed the DIM prompt. →EXIT: Exits the DIM prompt.

22 Copyright © 2009 by K. Plantenberg Restricted use only Dimensioning in AutoCAD 5.6) Associative Dimensions

23 Copyright © 2009 by K. Plantenberg Restricted use only Associative Dimensions  Associative dimensions are associated (connected) with the dimensioned object. →If the object is changed, the associated dimension value will change. Live Demonstration

24 Copyright © 2009 by K. Plantenberg Restricted use only Associative Dimensions  Associativity is broken if... →You manually type in the dimension text →replace the dimension text →EXPLODE the dimension  Multileaders are not associative.

25 Copyright © 2009 by K. Plantenberg Restricted use only Dimensioning in AutoCAD 5.7) Annotative Objects

26 Copyright © 2009 by K. Plantenberg Restricted use only Annotative Objects  Annotative objects support multiple viewport scales. (Dimension, text, hatches...) 1:1 scale 1:2 scale

27 Copyright © 2009 by K. Plantenberg Restricted use only Annotative Objects  Annotative objects support multiple viewport scales. (Dimension, text, hatches...) 1:1 scale 2:1 scale

28 Copyright © 2009 by K. Plantenberg Restricted use only Annotative Objects  Each supported scale adds to the file size.

29 Copyright © 2009 by K. Plantenberg Restricted use only Annotation Scaling Panel

30 Copyright © 2009 by K. Plantenberg Restricted use only Dimensioning in AutoCAD End

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