Slide 1

							AutoCAD: Secrets Every User
Should Know
  Chapter 4 – Applying Graphics
            Standards
          Dimensions

• Anonymous Blocks
  – Defined by AutoCAD
  – Names begin with *D
  – Not listed as blocks
• Don't Explode
  – Can't redefine
  – Won't update with edits


                              2
         Dimensions

• Associativity
• DIMASO Is the Old Variable
• DIMASSOC Is the New
  0 All dimension exploded (DON’T)
  1 Dimensions are blocks but
    associated only with defpoints
  2 Dimensions associated with
    geometry, even when in Paper
    Space
                                 3
         Dimensions

• Default Dimension Style
  – Imperial: STANDARD
  – Metric: ISO-25
• Neither One Meets Standards
• Use a Different Name for Your
  Dimension Styles



                                  4
          Dimensions

• Custom Arrow Head
  – Draw one unit long, pointing right
  – Create a block with point as
    insertion
  – Select "User Arrow" in style




                                     5
      Dimension Styles

• Decimal Inch
  – Dimension Style Manager




                              6
      Dimension Styles

• Decimal Inch
  – Lines tab




                         7
      Dimension Styles

• Decimal Inch
  – Symbols and Arrows tab




                             8
      Dimension Styles

• Decimal Inch
  – Text tab




                         9
       Dimension Styles

• Decimal Inch
  – Fit tab




                          10
      Dimension Styles

• Decimal Inch
  – Primary Units tab




                         11
      Dimension Styles

• Decimal Inch
  – Alternative Units tab
     • Seldom used
     • Not allowed on military spec
       drawings
     • When used, generally scale 25.4
  – Tolerances tab
     • Use when tolerance applied
     • Classes of fit

                                         12
      Dimension Styles

• Decimal Inch
  – Child variations
     • Radius
     • Diameter




                         13
      Dimension Styles

• Decimal Inch
  – Child variations




                         14
        Dimension Styles

• ASME Metric and ISO
  – Start with decimal inch
  – Soft conversions
    •   0.04 is approximately 1mm
    •   0.0625 (1/16") approximately 1.5mm
    •   0.125 (1/8") approximately 3mm
    •   0.25 (1/4') approximately 6mm
    •   0.375 (3/8") approximately 9mm
    •   0.5 (1/2") approximately 12mm

                                       15
      Dimension Styles

• Architectural
  – Lines tab




                         16
      Dimension Styles

• Architectural
  – Symbols and Arrows tab




                             17
      Dimension Styles

• Architectural
  – Text tab (city blueprint, country
    blueprint, hand1, or romans




                                        18
       Dimension Styles

• Architectural
  – Fit tab




                          19
      Dimension Styles

• Architectural
  – Primary Units tab




                         20
      Dimension Styles

• Architectural
  – Alternate Units tab
     • Seldom used
  – Tolerances tab
     • Not Used




                          21
      Dimension Styles

• Architectural
  – Child variations
     • Radius, Diameter, and Linear




                                      22
      Dimension Styles

• Architectural
  – Linear Text tab




                         23
      Dimension Styles

• Architectural
  – Linear Fit tab




                         24
      Dimension Styles

• Civil Surveying
  – Lines tab




                         25
      Dimension Styles

• Civil Surveying
  – Text tab




                         26
      Dimension Styles

• Civil Surveying
  – Using on drawing




                         27
      Dimension Styles

• Civil Surveying
  – Using on drawing




                         28
     Dimension Rules

• Common Errors




                       29
      Dimension Rules

• Acceptable Application




                           30
               Text

• Two types of fonts
  – Shape fonts SHX
     • Vector-based AutoCAD
  – TrueType fonts (TTF)
     • Raster-based Windows
• Letter Height
  – General: 0.12", 3mm
  – Titles: 0.24", 6mm

                              31
               Text

• Don't Use Name “Standard”
• Acceptable Fonts - Mechanical
  – NOT txt.shx
  – Romans.shx
• Acceptable Fonts - Architectural
  – Romans.shx
  – Blueprint font


                               32
   Linetypes and Weights

• Hidden Line Conventions




                            33
   Linetypes and Weights

• Center Lines and Marks
  – Often incorrect in AutoCAD




                                 34
   Linetypes and Weights

• Center Lines and Marks
  – Use DCE for proper marks
    and editing without exploding




                                    35
   Linetypes and Weights

• Circular Center Mark
  – ARRAY them yourself




                           36
   Linetypes and Weights

• Lineweights
  – Object lines
     • Thick (0.4mm - 0.5mm)
  – Other lines
     • Thin (0.2mm - 0.25mm)
  – Architectural
     • May have four to seven lineweights




                                       37
AutoCAD Defaults




                   38
Applying Standards




                     39
Template Drawing Location




                        40
Use QNEW




           41
    Contents of Template File

• Layers
    – Colors, linetypes, lineweights
    – Layer filters, saved states
•   Dimension Style
•   Limits and Units
•   Text Styles ( not STANDARD)
•   General Block Definitions

                                       42
    Contents of Template File

•   Views and Viewports
•   Layouts for Each Sheet Size
•   Default Plot Styles/Pen Styles
•   System Variables (Not Registry)
    – AUPREC and LUPREC
    – LTSCALE, PSLTSCALE
    – MEASUREMENT
    – And so on
                                43
Layer Naming - Commercial
       Architecture
• AIA
  – Discipline
  – Major group
  – Minor group
  – Status
  – User defined
• Example
  A-WALL-DIMS-NEWW
                        44
 Layer Naming - Residential
        Architecture
• Can use AIA
• Might Have Simpler Standard
For Example

  FL1-DIM
  FL2-DIM
  FND-DIM


                                45
   Layer Naming General

• Reserve Layer 0 for Defining
  Blocks
• Use Part-Based Layer Names
  for Assemblies
• Use Logical Field Names
  – Easier to manage with wildcards



                                  46
Click to edit Master title style

• Click to edit Master text styles
  – Second level
     • Third level
        – Fourth level
            » Fifth level




                                     47