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Scale

From: AutoCAD 2008 Essential Training

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.

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.

Show transcript

This video is part of

Image for AutoCAD 2008 Essential Training
AutoCAD 2008 Essential Training

87 video lessons · 9534 viewers

Jeff Bartels
Author

 
Expand all | Collapse all
  1. 3m 25s
    1. Welcome
      1m 6s
    2. Introduction to AutoCAD
      1m 28s
    3. Using the exercise files
      51s
  2. 23m 3s
    1. Modelspace
      2m 19s
    2. Toolbars
      3m 22s
    3. Pulldowns
      3m 36s
    4. AutoCAD's command line
      1m 44s
    5. Dockable palettes
      3m 21s
    6. The Status bar
      2m 58s
    7. Saving your workspace
      2m 10s
    8. Essential settings
      3m 33s
  3. 19m 1s
    1. Opening an AutoCAD drawing
      3m 0s
    2. Mouse functions
      2m 1s
    3. Zooming, panning, and regen
      5m 10s
    4. The multiple-document environment
      3m 23s
    5. Saving your work
      2m 32s
    6. Using templates
      2m 55s
  4. 16m 32s
    1. The Line command
      3m 16s
    2. ORTHO and POLAR modes
      5m 44s
    3. The Circle command
      3m 26s
    4. The Heads-Up display
      4m 6s
  5. 15m 48s
    1. Defining units of measure
      6m 12s
    2. Drafting with architectural units
      5m 0s
    3. Drafting with metric units
      4m 36s
  6. 20m 49s
    1. Cartesian coordinates
      5m 48s
    2. Object snaps
      10m 27s
    3. Automating object snaps
      4m 34s
  7. 23m 26s
    1. Rectangle
      4m 20s
    2. Ellipse
      5m 58s
    3. Hatch
      8m 33s
    4. Polygon
      4m 35s
  8. 23m 19s
    1. Move and Copy
      6m 43s
    2. Rotate
      5m 4s
    3. Offset
      6m 1s
    4. Erase
      2m 5s
    5. Undo and Redo
      3m 26s
  9. 12m 34s
    1. Windows and crossing windows
      4m 48s
    2. Removing from selections
      3m 42s
    3. Using key-ins
      4m 4s
  10. 1h 4m
    1. Trim and Extend
      6m 53s
    2. Fillet
      5m 1s
    3. Chamfer
      6m 35s
    4. Array
      8m 1s
    5. Mirror
      6m 52s
    6. Stretch
      5m 49s
    7. Scale
      5m 17s
    8. Grips
      7m 37s
    9. Explode
      4m 16s
    10. Polyline edit
      7m 46s
  11. 26m 0s
    1. Layers
      3m 30s
    2. The Layer Properties Manager
      9m 6s
    3. Layer control
      4m 29s
    4. The ByLayer property
      5m 26s
    5. The Layer Previous command
      3m 29s
  12. 43m 5s
    1. Single-line text
      3m 46s
    2. Text justification
      7m 2s
    3. Text styles
      7m 30s
    4. Multi-line text
      6m 28s
    5. Editing
      3m 24s
    6. Bulleted and numbered lists
      4m 5s
    7. Symbols
      6m 17s
    8. Spell-checking
      4m 33s
  13. 28m 58s
    1. Creating dimensions
      8m 35s
    2. Dimension styles
      6m 40s
    3. Callouts
      6m 40s
    4. Tweaking dimensions
      7m 3s
  14. 14m 48s
    1. The Distance command
      4m 15s
    2. The Property Changer
      6m 30s
    3. The Quick Calculator
      4m 3s
  15. 25m 8s
    1. Creating and inserting blocks
      10m 15s
    2. Using blocks
      5m 46s
    3. Modifying blocks
      4m 9s
    4. Building your library
      4m 58s
  16. 48m 29s
    1. Quick plots
      6m 40s
    2. Selecting a pen table
      5m 35s
    3. Layouts pt. 1: Choosing paper
      3m 21s
    4. Layouts pt. 2: Inserting a title block
      3m 11s
    5. Layouts pt. 3: Cutting a viewport
      6m 17s
    6. Layouts pt. 4: Reusing layouts
      4m 14s
    7. Scale factors
      3m 58s
    8. Sizing modelspace text
      7m 15s
    9. Sizing modelspace dimensions
      4m 47s
    10. Sizing linetypes
      3m 11s
  17. 9m 57s
    1. Drawing compatibility
      3m 4s
    2. E-transmitting
      3m 10s
    3. Saving to the Design Web format
      3m 43s
  18. 18s
    1. Goodbye
      18s

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