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Drawing circles

From: AutoCAD 2011 Essential Training

Video: Drawing circles

Drawing a circle in AutoCAD is as easy as drawing a line. Circles just require a little bit more information. In this lesson, we're going to learn how to create circles. Before we get started, take a look at my Status Bar. Notice that all of these toggles are turned off, with the exception of grid. If you're going to work along with me, make sure that your mode settings match mine. Now, let's talk about what AutoCAD needs to create a circle. First of all, AutoCAD needs the location of the center point, and then it will need the circle's radius or diameter. The Radius is the distance from the center point to the edge, and the Diameter is the distance from one edge to the other that passes through the center point.

Drawing circles

Drawing a circle in AutoCAD is as easy as drawing a line. Circles just require a little bit more information. In this lesson, we're going to learn how to create circles. Before we get started, take a look at my Status Bar. Notice that all of these toggles are turned off, with the exception of grid. If you're going to work along with me, make sure that your mode settings match mine. Now, let's talk about what AutoCAD needs to create a circle. First of all, AutoCAD needs the location of the center point, and then it will need the circle's radius or diameter. The Radius is the distance from the center point to the edge, and the Diameter is the distance from one edge to the other that passes through the center point.

It's essentially the overall width of the circle. Let's pan this drawing over to create some room, and we'll create our first circle. To do that, I'll move up to the Draw panel, and I launch the Circle command. I'll pick a point on screen to define my center point. As I move my cursor, I get the same rubber band effect we see when creating a line. In fact, just like when we used the Line command, I can free-pick a point on screen to finish this circle. Now, this circle is nice, but it doesn't have much value because it wasn't created using any dimensions.

Let's create another circle, and this time we'll enter some real measurements. I'll launch the command again. I'll pick my center point on screen, and take a look at the command line. Notice that AutoCAD is expecting a radius. Let's say that I need to create a circle with a radius of 3. I'll type 3 and hit Enter. I'm going to launch the Circle command again. I'll pick another center point location over here, and let's look at the Commend line one more time. Notice that AutoCAD remembers the size of the last circle that I created. That number is now the default value for the Circle command.

So, if I wanted to create another circle of the same size, I can hit Enter to accept the default value. Let's create another circle, and this time we'll specify a diameter. I'll launch the command. We'll pick a point on screen. If we look at the command line, we can see the Circle command has a suboption of Diameter. I'm going to right-click and select Diameter, and then I'm going to enter a measurement of 8.25, and I'll Enter. That's pretty much it. There is no rocket science to creating circles in AutoCAD.

Now, let's talk for a minute about the Circle icon. Notice there is a fly-out right next to it. If I click this, it opens up a menu showing me that there are six different ways to create a circle. I show you this because there is only one circle command, this one, Center, Radius. this is the default circle method. All of the other choices that you see in this menu are merely shortcuts to the suboptions within the default command. For instance, I'm going to select the Center, Diameter method. I'll pick my center point on screen and take a look at the command line.

AutoCAD has entered the Diameter suboption for me. To finish this circle, I can simply type my diameter. I'm going to type 2, and I'll hit Enter. So, if you like using the shortcut icons, feel free to use those. Just remember that whichever shortcut you use last, that will become the default the next time you click this icon. Knowing what we know now, let's pan the drawing over. We'll zoom out a little bit. Let's try and recreate these existing circles. We'll start with this one. This circle has a radius of 3.25.

I'm going to click the fly-out and go back to the default circle method, Center, Radius. I'll pick my center point and I'll type 3.25 and hit Enter. Let's do the next circle, and I'll give you a shortcut. If you hit the Spacebar, you can re-launch the previous command. As you can see, I have re-launched Circle. So I'll pick a point on screen, I'll enter my radius of 5.62, and I'll hit Enter. Finally, we'll do this last circle. Take a look at this symbol right here. This is a Diameter symbol. So we can see this circle, obviously, it has a diameter of 8.

I'm going to hit my Spacebar to go right back into the Circle command. I'll pick the center point on screen, and then I'll right-click to access the Diameter suboption. I'll type 8 and hit Enter, and that's it. At this point in our training, we can create any circle that we wish, so long as we know the circle's radius or diameter.

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This video is part of

Image for AutoCAD 2011 Essential Training
AutoCAD 2011 Essential Training

100 video lessons · 20306 viewers

Jeff Bartels
Author

 
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  1. 2m 8s
    1. Welcome
      1m 29s
    2. Using the exercise files
      39s
  2. 23m 33s
    1. Understanding model space
      3m 44s
    2. Accessing AutoCAD's tools
      3m 2s
    3. Leveraging dockable palettes
      3m 1s
    4. Monitoring the Status bar
      1m 28s
    5. Understanding the anatomy of a command
      2m 14s
    6. Customizing AutoCAD's preferences
      3m 13s
    7. Accessing help
      3m 38s
    8. Saving a workspace
      3m 13s
  3. 19m 42s
    1. Opening an AutoCAD drawing
      3m 2s
    2. Understanding mouse functions
      2m 44s
    3. Zooming, panning, and regenning
      4m 24s
    4. Working in a multiple-document environment
      2m 39s
    5. Saving your work
      2m 29s
    6. Saving time with templates
      4m 24s
  4. 14m 35s
    1. Constructing lines
      2m 20s
    2. Locking angles with the Ortho and Polar modes
      4m 49s
    3. Drawing circles
      4m 10s
    4. Activating the Heads-Up Display
      3m 16s
  5. 14m 48s
    1. Defining a unit of measure
      6m 28s
    2. Constructing geometry using architectural measurements
      4m 6s
    3. Working with metric units
      4m 14s
  6. 23m 45s
    1. Understanding the Cartesian coordinate system
      4m 53s
    2. Locking to geometry using object snaps
      7m 42s
    3. Automating object snap selection
      7m 26s
    4. Using temporary tracking to find points in space
      3m 44s
  7. 19m 30s
    1. Drawing rectangles
      4m 56s
    2. Drawing polygons
      3m 4s
    3. Creating an ellipse
      5m 9s
    4. Organizing with hatch patterns
      6m 21s
  8. 29m 46s
    1. Making geometric changes using the property changer
      3m 38s
    2. Moving and copying elements
      4m 28s
    3. Rotating elements
      3m 48s
    4. Trimming and extending geometry
      5m 10s
    5. Creating offsets
      6m 16s
    6. Erasing elements
      2m 46s
    7. Undoing and redoing actions
      3m 40s
  9. 11m 52s
    1. Selecting objects using windows
      3m 46s
    2. Adding and removing from selections
      3m 43s
    3. Using keyboard shortcuts
      4m 23s
  10. 51m 12s
    1. Creating fillets
      3m 52s
    2. Creating chamfers
      3m 51s
    3. Copying objects into a rotated pattern
      4m 20s
    4. Copying objects into a rectangular pattern
      4m 58s
    5. Stretching elements
      4m 4s
    6. Creating mirrored copies
      2m 12s
    7. Scaling elements
      5m 0s
    8. Leveraging grips
      7m 20s
    9. Exploding elements
      5m 47s
    10. Joining elements together
      3m 44s
    11. Editing hatch patterns
      6m 4s
  11. 32m 19s
    1. Understanding layers
      2m 43s
    2. Creating and adjusting layers
      7m 20s
    3. Using layers to organize a drawing
      9m 17s
    4. Changing popular settings using the layer control
      3m 30s
    5. Understanding the BYLAYER property
      3m 37s
    6. Restoring previous layer states
      3m 42s
    7. Using existing geometry to set the current layer
      2m 10s
  12. 37m 43s
    1. Creating single-line text
      3m 11s
    2. Justifying text
      5m 18s
    3. Controlling appearance using text styles
      6m 10s
    4. Annotating with multi-line text
      5m 10s
    5. Editing text
      4m 32s
    6. Creating bulleted and numbered lists
      3m 29s
    7. Incorporating symbols
      5m 28s
    8. Correcting spelling errors
      4m 25s
  13. 28m 37s
    1. Creating general dimensions
      4m 13s
    2. Creating continuous and baseline dimensions
      2m 13s
    3. Controlling appearance using dimension styles
      4m 57s
    4. Modifying dimensions
      6m 6s
    5. Creating multileaders
      2m 53s
    6. Controlling appearance using multileader styles
      3m 23s
    7. Modifying multileaders
      4m 52s
  14. 25m 19s
    1. Inserting blocks
      4m 34s
    2. Creating blocks
      6m 41s
    3. Leveraging blocks
      5m 39s
    4. Redefining blocks
      3m 1s
    5. Building a block library
      5m 24s
  15. 13m 50s
    1. Querying a drawing using rollover tooltips
      2m 9s
    2. Taking measurements using the Distance command
      3m 2s
    3. Modifying properties using the Quick Properties tool
      4m 25s
    4. Automating calculations using the Quick Calculator feature
      4m 14s
  16. 36m 6s
    1. Creating quick plots
      6m 4s
    2. Selecting a pen table
      5m 48s
    3. Choosing line weights
      4m 32s
    4. Creating a layout, pt. 1: Choosing a paper size
      2m 42s
    5. Creating a layout, pt. 2: Inserting a title block
      2m 29s
    6. Creating a layout, pt. 3: Cutting viewports
      6m 9s
    7. Reusing layouts
      4m 3s
    8. Organizing layouts
      4m 19s
  17. 16m 49s
    1. Using the Annotative property to automatically size text
      4m 13s
    2. Using the Annotative property to automatically size dimensions
      4m 34s
    3. Using the Annotative property to automatically size multileaders
      3m 58s
    4. Changing the scale assigned to annotations
      4m 4s
  18. 6m 56s
    1. Saving drawings to other formats
      2m 27s
    2. Plotting to the Design Web format
      2m 15s
    3. Plotting to PDF
      1m 20s
    4. Sending drawings via email
      54s
  19. 22s
    1. Goodbye
      22s

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