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Creating offsets


From:

AutoCAD 2011 Essential Training

with Jeff Bartels

Video: Creating offsets

In this lesson we are going to look at another way to copy our geometry. This time we'll use the Offset command. What makes Offset special is that it makes parallel copies of our line work. On my screen I have a couple of entities. I have got a line segment and a circle. Let's create a parallel copy of this line segment first. To do that, I will launch the Offset command. Offset is located in the Modify panel of the Ribbon. The icon is right here. Now that I have launched the command, AutoCAD is asking me for an offset distance. This is the distance between my copies. I am going to type 0.75 and hit Enter.
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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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Watch the Online Video Course AutoCAD 2011 Essential Training
6h 48m Beginner Jul 30, 2010

Viewers: in countries Watching now:

Join Jeff Bartels as he covers the most important features of this industry-standard drafting and design application in AutoCAD 2011 Essential Training. This course begins with a tour of AutoCAD's interface and the tools used to create basic shapes. It then focuses on the methods used to modify and refine geometry while emphasizing accuracy and good habits to build a solid design foundation. The course covers using layers, line types, and colors to organize a drawing file and explains how to efficiently annotate a design and prepare it for final output. Throughout the title, Jeff shares industry techniques used in production and reinforces concepts using practical examples. Exercise files are included with the course.

Topics include:
  • Understanding model space
  • Working in a multiple-document environment
  • Organizing drawings using layers
  • Creating basic geometry
  • Configuring units for architectural, civil, or metric work
  • Incorporating blocks (symbols) into a working file
  • Maintaining accuracy with coordinates and snaps
  • Creating annotations that automatically size themselves
  • Moving and copying elements
  • Transferring data between drawings
  • Preparing standardized layouts with title blocks
  • Sharing drawings
Subject:
CAD
Software:
AutoCAD
Author:
Jeff Bartels

Creating offsets

In this lesson we are going to look at another way to copy our geometry. This time we'll use the Offset command. What makes Offset special is that it makes parallel copies of our line work. On my screen I have a couple of entities. I have got a line segment and a circle. Let's create a parallel copy of this line segment first. To do that, I will launch the Offset command. Offset is located in the Modify panel of the Ribbon. The icon is right here. Now that I have launched the command, AutoCAD is asking me for an offset distance. This is the distance between my copies. I am going to type 0.75 and hit Enter.

Then, I will select the object I'd like to offset and finally I will click on screen to identify which side of the line I'd like to make my copy. I am going to click on this side, and notice I am still in the command. This is because AutoCAD always assumes you would like to create multiple offsets. If I would like to offset the same line to the other side, I could select the line, and I will click to this side. When I am finished, I will hit Esc. Let's create another offset. Let's say I would like to offset this circle to the inside 0.25 units. I will launch the Offset command, my offset distance will be 0.25, Enter, and then I will select my circle and I will click to the inside.

When I am finished, I will hit Esc. Not only is offset nice for creating copies, we can also use it to find locations and space. For instance, let's say I would like to create another circle using the same measurements in the lower left corner of the square. Right now I can see that the center of this circle is placed 0.75 units from this edge and 0.75 units from this edge. To place my circle, I will launch the Offset command. I will enter a distance of 0.75, Enter. I will offset this edge to the right, and I will offset this edge up, and then I will hit Esc.

This intersection represents the location of the center of my new circle. I will launch the Circle command, I'd like to place my circle at the Shift+Right-click, intersection of these two lines, and I am given the diameter in this case. So I am going to right-click to access the Diameter sub-option and my diameter is 0.6, Enter. Now that I am finished, I can delete my sketch lines by clicking on each of these and pressing the Delete key. Let's pan the drawing over a little bit more. I am going to zoom-out a little.

I'll push this up on screen. Let's see if we can use the Offset command to help us recreate the simple mechanical part. I am going to start by creating some sketch geometry. I will launch my line command and I will create a line segment from right about here. Then, I will lock my Ortho. To do that, I will press the F8 key. I will pull to the right, and click. When I am finished, I will hit Esc. Then I will hit my Spacebar to go back into the Line command and I will create another segment from right about here. I will pull straight down and click, and then I will hit Esc.

I am going to use these sketch lines to help me build this part. The intersection that I created right here, will represent the intersection right here. Let's draw the circles first. I will launch the Circle command, I would like to place my circle at the intersection of these two lines and the circle has a radius of 0.6. Now we will do the larger circle. I will hit my Spacebar to re -enter the Circle command. I would like to create my circle at the center of this one, and this circle has a radius of 1.5, Enter. Now, I would like to find the center location for these circles.

To do that, I am going to use the Offset command. What if I offset this line 7 units to the right? That would give me another intersection where I could start building my new circles. I will launch the Offset command. My distance will be 7, Enter. I will offset this line to the right, and then I will hit Esc. Now, instead of creating two new circles, why don't we just copy these? I will launch the Copy command, I will select this circle and this one, and right-click. I would like to copy them from the center location and I would like to place them to the intersection right here.

When I am finished, I will hit Esc. Let's create the lower and upper lines. Notice these lines are parallel to the center line. Another perfect opportunity to use offset. What's our offset distance though? Well, it's going to be the same distance as the radius of the circle which is 1.5. I will launch Offset, my distance is 1.5, Enter. I will offset my center line up, and then I will offset my center line down, and I will hit Esc. Alright! Let's do a little housekeeping. We will use the Trim command to clean up our line work.

I'll launch Trim, and I am going to use this circle and this circle as cutting edges, I will hit Enter, and I would like to cut off this piece, and this one, this one, and this one, and I will hit Esc. Let's go back into the Trim command. I will do that by hitting the Spacebar, and I would like to use this object and this object as cutting edges and I will hit Enter. I will trim off this piece, and this one, and I will hit Esc. All we have to do is build this notch. Once again these lines are all parallel to my sketch lines that I created.

So another perfect opportunity to use Offset. I am going to start by offsetting this line to the right 2 units and then 3 units to find these edges. I will launch the Offset command. My distance will be 2, Enter. I will offset this line to the right and then I will hit Esc. Let's hit the Spacebar to go right back into the Offset command, my distance will be 3, Enter. I will offset this line to the right and I will hit Esc. Finally, we will take care of the depth of this notch. I will do that by hitting the Spacebar to re-launch Offset.

My distance is 1, Enter. I will offset this line down, and then I will hit Esc. It looks like we can finish this up with the Trim command. I will launch Trim and I would like to use this edge and this edge, this edge, and this edge as cutting objects, Enter. I would like to cut off this end and this one, this one, and this one. this one and this one, and I will trim out this area as well. When I am finished, I will hit Esc. At this point, the part is finished, and I can erase the sketch lines that I started with.

To do that, I will click on each of these line segments and then I will press my Delete key. As you can see creating offsets is a great way to build your geometry on screen. I think you will find Offset to be one of AutoCAD's most useful tools.

Find answers to the most frequently asked questions about AutoCAD 2011 Essential Training .


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Q: Despite following the tutorials, I am having trouble in AutoCAD Architecture 2011. I cannot copy basic line drawings of simple architecture from one file to another. I tile two AutoCAD documents open simultaneously and click on a geometry, let go, click again and hold and try to drag to the second document, but to no avail. What could be causing the problem?
A: There are a few possible solutions. At the command line, type "PICKFIRST" and press Enter. Make sure this variable is set to 1. If the value is set to 0 instead of 1, this would result in the problem described. Having PICKFIRST set to 1 (normally the default setting for "vanilla" AutoCAD) allows you to select an object first, and then launch an editing command (like Move or Rotate or Erase). Thus, you can work in both directions. Launch the Editing command first and then select objects, or visa versa. 
If PICKFIRST is not the issue, the problem might be something native to AutoCAD for Architecture, as there are some differences between that version and plain AutoCAD. Don't forget, you can also move geometry from one drawing to another by using Copy/Paste. Simply select your geometry and right-click, select copy, then click in your other drawing, right-click, and select Paste. Note that the Copy/Paste options are also available on the Home tab of the Ribbon. Copy/Paste should work regardless of your PICKFIRST setting.
 
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