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Up and Running with Autodesk Inventor

Creating center lines, center marks, and hole notes


From:

Up and Running with Autodesk Inventor

with John Helfen

Video: Creating center lines, center marks, and hole notes

In this chapter we've learned how to place views, we've learned a few ways to create dimensions, we've even learned how to control the precision of those dimensions. In this movie I want to turn our focus to Centerline, Center Marks, and Hole Notes. To create those, we're going to go to the Annotation tab, and under the Symbols panel you can see a few different options for creating Centerline and Center Marks. I'm going to zoom in on our front view and start with creating up general Centerline. This command allows you to simply select points in the view that you can create Centerlines from.
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  1. 1m 28s
    1. Welcome
      41s
    2. Using the exercise files
      47s
  2. 8m 3s
    1. Exploring major workflow steps
      2m 19s
    2. Reviewing different file types
      4m 43s
    3. Exploring essential settings
      1m 1s
  3. 21m 39s
    1. Navigating using the ViewCube
      3m 26s
    2. Navigating using the navigation tools
      5m 36s
    3. Using the browser
      3m 17s
    4. Using the ribbon bar
      2m 10s
    5. Using the Quick Access Toolbar
      1m 4s
    6. Customizing the toolbars
      3m 7s
    7. Using the Marking menu
      2m 59s
  4. 48m 42s
    1. Introducing sketching
      3m 18s
    2. Working with origin geometry
      3m 47s
    3. Understanding constraints
      8m 43s
    4. Drawing with the Line tool
      8m 8s
    5. Dimensioning a part
      5m 0s
    6. Creating parameters
      8m 50s
    7. Creating circles and rectangles
      10m 56s
  5. 38m 31s
    1. Introducing part modeling
      2m 34s
    2. Creating a base extrusion
      5m 12s
    3. Creating multiple extrusions
      7m 35s
    4. Creating a cone by revolving
      6m 12s
    5. Creating holes
      6m 12s
    6. Creating a threaded hole
      3m 3s
    7. Using placed features
      2m 33s
    8. Editing part features
      5m 10s
  6. 25m 52s
    1. Introducing assemblies
      54s
    2. Placing components
      6m 29s
    3. Creating and managing constraints
      7m 50s
    4. Assembling parts
      7m 16s
    5. Understanding the Insert constraint
      3m 23s
  7. 25m 12s
    1. Exploring initial drawing creation
      4m 43s
    2. Placing views
      6m 11s
    3. Creating section and detail views
      5m 10s
    4. Setting basic dimensions
      2m 43s
    5. Changing dimension precision
      1m 24s
    6. Creating baseline dimensions
      1m 52s
    7. Creating center lines, center marks, and hole notes
      3m 9s
  8. 1m 20s
    1. Next steps
      1m 20s

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Up and Running with Autodesk Inventor
2h 50m Beginner Nov 14, 2012

Viewers: in countries Watching now:

This course introduces you to the interface and key processes of Inventor, the parametric design system from Autodesk. Author John Helfen covers sketching, part modeling, assemblies, and drawings. These tasks work in conjunction, allowing you to create parts and assemblies and document them in a way so that the manufacturing process proceeds faster and more efficiently.

Topics include:
  • Navigating drawings with the View Cube and other navigation tools
  • Sketching geometry
  • Dimensioning parts
  • Creating parameters
  • Drawing circles, squares, and other shapes
  • Creating extrusions
  • Creating and managing constraints in assemblies
  • Setting basic drawing dimensions
Subjects:
Prototyping Product Design CAD 2D Drawing 3D Drawing
Software:
Inventor
Author:
John Helfen

Creating center lines, center marks, and hole notes

In this chapter we've learned how to place views, we've learned a few ways to create dimensions, we've even learned how to control the precision of those dimensions. In this movie I want to turn our focus to Centerline, Center Marks, and Hole Notes. To create those, we're going to go to the Annotation tab, and under the Symbols panel you can see a few different options for creating Centerline and Center Marks. I'm going to zoom in on our front view and start with creating up general Centerline. This command allows you to simply select points in the view that you can create Centerlines from.

For example, if I hover over the midpoint on this side of the part, simply drag to the other side of the part and connect to the midpoint there, I can then right-click and select Create, and I've manually created a Centerline. This can be done with any view and any geometry within that view. The other way to create a Centerline would be to use the Centerline Bisector tool. This tool allows you to select two lines and have Inventor create a Centerline between them automatically. After creating the Centerline we can get out of the command, and we can manually extend that throughout the part. The next item I wanted to cover is Center Marks.

Center Marks are also very simple to create and are required in many drawing documents. The Center Mark tool is also located in the Symbols panel. After launching the command, you can create a Center Mark by simply selecting any circular geometry in a view. Inventor will automatically scale the Center Mark to meet the size of that specific piece of geometry. Now that we've created a few Centerlines and Center Marks, I wanted to turn our attention to Hole Notes. Hole Notes can be found on the Annotation tab under the Feature Notes panel.

The Hole Notes command is also very simple to use, and I wanted to call out some of the benefits of using it. While we were in the part modeling chapter we created holes using the Hole command and during that process I mentioned that we were building a lot of intelligence into the model through that command. Here's where we get to see the benefit of that. When we were creating the holes, the one hole that extended off of the revolve feature was actually a threaded hole. And if I select that hole in our drawing view, you can see that the Hole Note command has pulled the information directly from the model and updated that into our drawing.

In this case, it's an 8-32 threaded hole. Because it's connected to the model, if the model changes the drawing will automatically update to reflect that change. I want to turn our attention to another hole in the Section view. While still in the Hole Note command, we can select part of the circle that makes up the hole in the Section view. Here you can see the Hole Note has created a couple of pieces of information for this. It's pulled the diameter from the model, but it's also pulled the depth as well. Again, using the hole feature in the part modeling environment greatly affects the outcome of drawings that you're annotating.

Rather than having to manually input this information if you had used an Extrude, the information was built into the model and is actually pulled on the fly into the drawing, and it's connected so that any updates will be reflected without any intervention.

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