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AutoCAD 2011 New Features

Using the JOIN command to connect contiguous geometry


From:

AutoCAD 2011 New Features

with Jeff Bartels

Video: Using the JOIN command to connect contiguous geometry

If you create a lot of geometry using splines, you're going to love the enhancements made to the Join command. In AutoCAD 2011, we can now use Join to connect our splines to nearly any other entity. On my screen I've got an example of a few entities, and I would like to join these to some splines. So I'm going to create a spline by opening up the Draw panel. I'll launch the Spline command and I'll start my spline from the endpoint of this line segment. I'll pick a few more points on screen, and when I'm finished, I'll hit my Enter key.
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  1. 2m 4s
    1. Welcome
      1m 28s
    2. Using the exercise files
      36s
  2. 14m 2s
    1. Adapting to the updated Drawing window
      4m 4s
    2. Introducing the Navigation bar
      5m 28s
    3. Accessing the web-based help system
      4m 30s
  3. 27m 36s
    1. Understanding the new visibility controls
      3m 5s
    2. Selecting objects that have similar properties
      3m 24s
    3. Creating new geometry based on existing objects
      2m 20s
    4. Making selections when entities overlap
      4m 11s
    5. Applying transparency to objects
      5m 44s
    6. Controlling text alignment within linetypes
      8m 52s
  4. 16m 38s
    1. Automating the creation of geometric constraints
      5m 35s
    2. Applying constraints to text rotation
      3m 8s
    3. Using the updated Parameters Manager
      7m 55s
  5. 38m 40s
    1. Streamlining hatch creation
      5m 56s
    2. Editing hatch objects dynamically
      4m 36s
    3. Editing polylines using multifunctional grips
      6m 14s
    4. Creating splines using fit points or control vertices
      10m 30s
    5. Editing splines using intuitive grip menus
      8m 17s
    6. Using the JOIN command to connect contiguous geometry
      3m 7s
  6. 18m 56s
    1. Exploring the updated 3D working environment
      6m 50s
    2. Simplifying the creation and editing of solid models
      5m 59s
    3. Introducing new tools to edit mesh models
      6m 7s
  7. 1h 25m
    1. Introducing surfaces
      2m 50s
    2. Understanding associative surfaces
      7m 9s
    3. Creating composite models using surfaces and solids
      9m 3s
    4. Producing a smooth blend between surfaces
      7m 20s
    5. Trimming and extending surfaces
      10m 55s
    6. Projecting geometry onto a surface
      5m 29s
    7. Filleting the edge between two surfaces
      6m 37s
    8. Creating offset and network surfaces
      8m 45s
    9. Pushing and pulling surfaces into freeform shapes
      10m 52s
    10. Analyzing surface continuity
      6m 15s
    11. Assembling the composite model
      10m 40s
  8. 22m 2s
    1. Introducing the new Materials Browser
      6m 10s
    2. Applying materials to an assembly
      6m 2s
    3. Customizing render materials
      5m 17s
    4. Creating a high-resolution image
      4m 33s
  9. 16s
    1. Goodbye
      16s

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AutoCAD 2011 New Features
3h 46m Intermediate Apr 21, 2010

Viewers: in countries Watching now:

In AutoCAD 2011 New Features, instructor Jeff Bartels highlights productivity and creativity enhancing additions to the AutoCAD toolset. This course covers improved functions for selecting and creating geometry, updated modification tools for hatches and polylines, simplified parametric constraint tools, and the new dynamic surface modeling techniques for creating complex shapes. Exercise files accompany the course.

Topics include:
  • Applying transparency
  • Maintaining text readability within linetypes
  • Automating geometric constraints
  • Streamlining hatch creation
  • Using control vertices to create splines
  • Exploring the updated 3D workspace
  • Creating surfaces using the Blend, Patch, or Network tools
  • Trimming and extending surfaces
  • Working with the new Materials Browser
  • Customizing render materials
Subjects:
CAD 2D Drawing 3D Drawing
Software:
AutoCAD
Author:
Jeff Bartels

Using the JOIN command to connect contiguous geometry

If you create a lot of geometry using splines, you're going to love the enhancements made to the Join command. In AutoCAD 2011, we can now use Join to connect our splines to nearly any other entity. On my screen I've got an example of a few entities, and I would like to join these to some splines. So I'm going to create a spline by opening up the Draw panel. I'll launch the Spline command and I'll start my spline from the endpoint of this line segment. I'll pick a few more points on screen, and when I'm finished, I'll hit my Enter key.

Now instead of drawing several more splines, I'm just going to copy this one. I'll launch my Copy command, I'll select my spline and right-click and I'll copy it from the endpoint here to here to here to here. When I'm finished, I'll hit Escape. Let's start by joining this spline to the straight-line segment. To do that, I'm going to open up the Modify panel and launch the Join command. And here is the trick. If you want to join an entity to your spline, select the spline first.

So I'll select my spline and then my line and I'll right-click, and that's it. This becomes a single spline-segment. I'm going to hit my Spacebar to go back into the Join command, and let's join this spline to this arc. Once again, I'll right-click and it becomes a single spline. I'll hit my Spacebar again, we'll join this spline to this polyline, re-launch the command, and I'll join my spline to this helix. We can use the Join command to connect a spline to a line, arc, polyline, 3D polyline, helix or another spline, so long as they meet end to end.

And the object's being joined don't need to be coplanar. They can exist in three- dimensional space and still join just fine. Let's try using the Join command in a practical example. I'm going to paint my drawing over. On my screen, I have a conceptual design for a flexible penlight. And I've already created the centerline for the flexible arm. It consists of a spline segment and a couple of straight lines where the arm enters the body of the part. To create the shape of the arm, I'd like to offset this geometry, but before I do that, I'm going to join it altogether such that I can offset everything in one piece.

Prior to AutoCAD 2011, this wasn't possible. I'll start by launching the Join command. I'll select my spline first followed by my two straight segments and then I'll right-click. Now that this is a single spline object, I'll launch my Offset command. I'm going to use an offset distance of 0.075 and hit Enter. I'll offset my centerline to the outside. I'll select it again and offset it to the inside and I'll hit my Escape key when I'm finished.

Finally, I'll select my two offsets and I'll open up my layer control and I'll put them on the flexible arm layer. When I'm finished, I'll hit the Escape key. With the enhancements made to the Join command, splines become much more versatile and they are even easier to incorporate into our workflow.

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