AutoCAD 2008 Essential Training
Illustration by Don Barnett

AutoCAD 2008 Essential Training

with Jeff Bartels

Video: Scale

If you have ever used a copy machine to make enlargements or reductions of images you are already familiar with the concept of scale. Just like we can make our images larger or smaller using a copy machine, we can make our entities larger or smaller by using the Scale command. Let's play around with Scale. I'm going to open a couple of drawings, I'm going to come up and click on my Open icon. Inside the Chapter 9 folder within our Exercise Files directory I'm going to scroll down, I have got 3 drawings that I would like to use within my Chapter 9 Demonstration.
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  1. 3m 27s
    1. Welcome
      1m 6s
    2. Introduction to AutoCAD
      1m 29s
    3. Using the exercise files
      52s
  2. 23m 16s
    1. Modelspace
      2m 21s
    2. Toolbars
      3m 24s
    3. Pulldowns
      3m 36s
    4. AutoCAD's command line
      1m 46s
    5. Dockable palettes
      3m 23s
    6. The Status bar
      2m 59s
    7. Saving your workspace
      2m 12s
    8. Essential settings
      3m 35s
  3. 19m 8s
    1. Opening an AutoCAD drawing
      3m 1s
    2. Mouse functions
      2m 2s
    3. Zooming, panning, and regen
      5m 11s
    4. The multiple-document environment
      3m 24s
    5. Saving your work
      2m 34s
    6. Using templates
      2m 56s
  4. 16m 37s
    1. The Line command
      3m 17s
    2. ORTHO and POLAR modes
      5m 45s
    3. The Circle command
      3m 27s
    4. The Heads-Up display
      4m 8s
  5. 15m 51s
    1. Defining units of measure
      6m 13s
    2. Drafting with architectural units
      5m 1s
    3. Drafting with metric units
      4m 37s
  6. 20m 52s
    1. Cartesian coordinates
      5m 50s
    2. Object snaps
      10m 27s
    3. Automating object snaps
      4m 35s
  7. 23m 33s
    1. Rectangle
      4m 22s
    2. Ellipse
      6m 0s
    3. Hatch
      8m 34s
    4. Polygon
      4m 37s
  8. 23m 28s
    1. Move and Copy
      6m 45s
    2. Rotate
      5m 6s
    3. Offset
      6m 1s
    4. Erase
      2m 6s
    5. Undo and Redo
      3m 30s
  9. 12m 38s
    1. Windows and crossing windows
      4m 49s
    2. Removing from selections
      3m 44s
    3. Using key-ins
      4m 5s
  10. 1h 4m
    1. Trim and Extend
      6m 55s
    2. Fillet
      5m 3s
    3. Chamfer
      6m 36s
    4. Array
      8m 2s
    5. Mirror
      6m 54s
    6. Stretch
      5m 51s
    7. Scale
      5m 19s
    8. Grips
      7m 37s
    9. Explode
      4m 17s
    10. Polyline edit
      7m 48s
  11. 26m 8s
    1. Layers
      3m 32s
    2. The Layer Properties Manager
      9m 8s
    3. Layer control
      4m 30s
    4. The ByLayer property
      5m 27s
    5. The Layer Previous command
      3m 31s
  12. 43m 16s
    1. Single-line text
      3m 47s
    2. Text justification
      7m 3s
    3. Text styles
      7m 31s
    4. Multi-line text
      6m 30s
    5. Editing
      3m 24s
    6. Bulleted and numbered lists
      4m 7s
    7. Symbols
      6m 19s
    8. Spell-checking
      4m 35s
  13. 29m 0s
    1. Creating dimensions
      8m 36s
    2. Dimension styles
      6m 39s
    3. Callouts
      6m 42s
    4. Tweaking dimensions
      7m 3s
  14. 14m 53s
    1. The Distance command
      4m 17s
    2. The Property Changer
      6m 31s
    3. The Quick Calculator
      4m 5s
  15. 25m 10s
    1. Creating and inserting blocks
      10m 16s
    2. Using blocks
      5m 47s
    3. Modifying blocks
      4m 8s
    4. Building your library
      4m 59s
  16. 48m 45s
    1. Quick plots
      6m 42s
    2. Selecting a pen table
      5m 37s
    3. Layouts pt. 1: Choosing paper
      3m 23s
    4. Layouts pt. 2: Inserting a title block
      3m 13s
    5. Layouts pt. 3: Cutting a viewport
      6m 18s
    6. Layouts pt. 4: Reusing layouts
      4m 16s
    7. Scale factors
      4m 0s
    8. Sizing modelspace text
      7m 17s
    9. Sizing modelspace dimensions
      4m 48s
    10. Sizing linetypes
      3m 11s
  17. 10m 1s
    1. Drawing compatibility
      3m 5s
    2. E-transmitting
      3m 12s
    3. Saving to the Design Web format
      3m 44s
  18. 20s
    1. Goodbye
      20s

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Watch the Online Video Course AutoCAD 2008 Essential Training
6h 58m Beginner May 13, 2008

Viewers: in countries Watching now:

AutoCAD is a computer-aided drafting and design program that is the industry standard for a wide variety of 2D and 3D work. AutoCAD 2008 features several improvements over previous versions, but the core functionality and workflows have remained consistent for years. Users who have any of the more recent editions of the software will find AutoCAD 2008 Essential Training to be a valuable resource. Instructor Jeff Bartels has taught and used AutoCAD for a decade, and in this course he focuses on the difficult to master concepts that matter most to professional AutoCAD users. Exercise files accompany the course.

Topics include:
  • Opening, viewing, saving, and sharing drawings
  • Customizing the workspace
  • Mastering drawing fundamentals and specialized commands
  • Defining units of measure and controlling accuracy
  • Making primary modifications and major changes to a drawing
  • Organizing layers and reusable content
  • Annotating and dimensioning
  • Plotting with layouts
  • Sizing linetypes, modelspace text, and dimensions for a plot
Subject:
CAD
Software:
AutoCAD
Author:
Jeff Bartels

Scale

If you have ever used a copy machine to make enlargements or reductions of images you are already familiar with the concept of scale. Just like we can make our images larger or smaller using a copy machine, we can make our entities larger or smaller by using the Scale command. Let's play around with Scale. I'm going to open a couple of drawings, I'm going to come up and click on my Open icon. Inside the Chapter 9 folder within our Exercise Files directory I'm going to scroll down, I have got 3 drawings that I would like to use within my Chapter 9 Demonstration.

So I'm going to click my MP3 player drawing and highlight it. And then I'm going to hold my Shift key and I'm going to click the Basketball drawing and I have highlighted all 3 of these files. Now I'm going to come over and click my Open button and AutoCAD will open all three of these drawings. Since AutoCAD supports the multiple document environment, each of these drawings is open. For right now we are going to work with the MP3 player. Let's say I would like to make a design change to this guy. I would like to change the size of the thumbwheel. I can do that by using the Scale command.

If I would like to adjust the Scale, I'm going to come over to my Modify toolbar and click my Scale icon. When I do AutoCAD is asking me to select objects, which objects would I like to resize. Now I do have several objects here so I'm going to click on the upper left hand corner outside my thumbwheel and we will create a nice window around all of these entities. Let me click to finish the window. And then we will right-click so that AutoCAD knows we have done selecting objects. Now that they are selected AutoCAD is asking to me to specify a base point. At what point what I like my geometry to get larger or smaller.

Well, I'm going to use the center point of the thumbwheel and I happen to have a running Object Snap set for center. So I'm going to move my cursor around to the Arc and click, notice that I move my cursor, I'm getting a rubber-band effect for my scale. Now I could free pick a point on the screen if I wish but instead I'm going to type in a Scale factor. Notice that the current Scale factor setting is 1. 1 means essentially no change, there would be a one to one scale. I'm going to type in 0.5 for my scale and hit Enter.

I just converted that thumbwheel to half its original size. Let's scale it again. I'm going to access Scale from the right-click, I'm going to right-click, go to Repeat Scale, select Object, let's use a key in. How about if I set P for Previous and hit Enter? I just re-selected that geometry. Let me right-click to finish the selection, specify base point once again I'm going to make this larger or smaller based on it center point. So I'm going to move my cursor onto the Arc and click and this time I'm going to apply a Scale factor of 2.

I would like to make this thumbwheel twice as big as it is right now. When I hit Enter, I just change the Scale. Now this is an example of using the Scale command for a design change. Scale also comes in handy when we have trouble with our units. Let me show you what I mean. I'm going to close this drawing. Let me come up and click little x to close this drawing. And remember that I still have two other drawings open. Let's do a side-by-side comparison. I'm going to come up to my Window pulldown and I am going to come down and select tile vertically, this will give me a nice side-by-side of each of my drawings.

If I click in a window that window becomes active so I can adjust my view. Let me pen this guy a little bit. Let me click in my Basketball drawing, we will pen him over just a little bit. Now the drawing on the left was created such that one unit equals 1 foot. The drawing on the right was created such that one unit equals one inch. Watch this I'm going to drag my basketball from its drawing into the Basketball Court drawing. I can do that by clicking on the entity and as soon as it highlights I'm going to click and hold on the dashed line and I can drag this into the court drawing.

I will release, notice my basketball is coming in way too big. Why, because in this drawing AutoCAD just sees 9.39. So when the basketball comes in it's coming in at 9.39 feet in diameter. Let me zoom in and let's correct the Scale. I'm going to change the Scale by launching my Scale command, let me come over and click the Scale icon. And in the Select objects prompt, I will select my basketball and then I will right-click to finish my selection.

Base point let's scale him about the center point I will just move my cursor on the Arc because I have a running Object Snap set for center. And I will click, and what is my Scale factor, well the difference between inches and feet is 112. So I'm going to type in 1/12 just like the fraction. And when I hit Enter I have just scaled that basketball to the appropriate size. In fact if I was to use the Move command, select my basketball, specify a base point, we will pick any point here, will zoom in, it will in fact fit through the hoop now.

Whether we need to resize our entities is part of a design change or to correct the difference in drawing units we can accurately make our entities larger or smaller by using the Scale command.

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