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Introducing sketching

From: Inventor 2014 Essential Training

Video: Introducing sketching

Now that we're ready to learn about sketching, I wanted to take I'm going to go ahead and create a new part in Inventor.

Introducing sketching

Now that we're ready to learn about sketching, I wanted to take a minute and step back and show the high-level concept of what sketching is and how it relates to part modeling, because I find that it's incredibly important to understand why we're sketching in the first place. Sketching is foundational in Inventor. It's where you're going to spend most of your time during the design process. And it's important in the beginning to understand how sketching and part modeling are related, so that you understand where we're going. The best way for you to understand this is for me to show you. I'm going to go ahead and create a new part in Inventor.

Now it's not important that you understand how to create a part or all the details of what I'm doing here. It's more important to understand the basic concept that I'm going to draw a 2D shape and turn that into a 3D model and what I want to do is show you the relation between the two, so that as you're learning about sketching, you can keep that in mind. On the screen, I now have a blank 2D part. The very first step of any part is to create a base feature, and you're going to do this by creating a 2D sketch. Since there's nothing flat to draw on, the origin planes come up and I can just select a flat surface to sketch on.

You think of it as selecting a flat piece of paper to create a 2-D shape on. I'm going to go ahead and create a rectangle real quickly. And rather than add dimensions and instructions and intelligence into this sketch, I'm just going to finish the sketch. All I want to do is show the overall process, not the details yet. We'll get into that later. But now that I have a 2D shape, I have the ability to apply a 3D modeling action to that shape. I'm going to right-click and I have the option in my right-click menu to select Extrude or Revolve, which are a couple of modeling actions.

I'm going to start with Extrude, because it's the one you'll probably use most often and it's the most basic. What it does is essentially takes that 2D shape and adds 3D depth to it. By hitting OK or clicking the green check box, I've essentially created the base feature of my very first part. Now it's not the most exciting part, but it is a part nonetheless. Next, what I'm going to do is continue the design process by creating more sketches and modeling features to essentially sculpt this part into the shape that I want as a final design.

To do that I can create another sketch and essentially rinse and repeat that same steps I did in the beginning. I'm going to select a flat face to sketch on. I'm going to create some type of 2D shape. In this case I'll create another rectangle. I'm going to finish that sketch and I'm going to apply a 3D modeling action again. I'm going to go ahead and select Extrude one more time, but this time, since there's more than one shape, Inventor wants me, as the designer, to select the shape I want to take action on. And I can select one or both or as many I want, depending on how many I've created in the sketch.

But essentially, I'm going to select this rectangle in the center, An inventor begins adding material. I can also remove material with the same steps, by just switching the direction of the extrusion. There's also many other options, like distance and termination types for how far I want to Extrude this. But at the most basic level I can add and remove material to sculpt a shape. I now have essentially a u channel. Now what's important to understand is, depending on what I sketch, I could do this, for example, in one action.

Let me create a new part real quick, and I'll show you what I mean. Rather than creating the first Extrude, then using a face on that part to create a second Extrude, I could draw those both in one shape. I'm going to go ahead and select my flat surface to draw on. And I'll create both rectangles in my sketch this time. When I finish my sketch, I can apply my 3D modeling action, I'm going to select extrude again, but this time since I have multiple shapes, again I get to select which one I want to take action on. And if I select the larger one, you can see that the Extrude allows me to create that basic shape in a single Extrude, based on what I've sketched.

Now that you see how those are related, the next step I want to mention is the fact that you can change the type of modeling action that is applied to that sketch. I'm going to use control + z on my keyboard to undo and get back to the 2D sketch. This time, I'm going to go ahead and right-click and select Revolve. And it starts out the same as the Extrude. I need to pick a profile I want to take action on. But this time, I have the ability to select an axis. If I select a line in this model or in this sketch, you can see that that same 2D shape can become a very different 3D feature.

That's essentially the connection between sketching and part modeling. It's important that you understand that as you get started, because it might affect how you or what you sketch as you're doing design.

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This video is part of

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Inventor 2014 Essential Training

90 video lessons · 3255 viewers

John Helfen

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  1. 1m 24s
    1. Welcome
    2. Using the exercise files
  2. 6m 20s
    1. Exploring major workflow steps
      2m 19s
    2. Reviewing different file types
      4m 1s
  3. 22m 3s
    1. Navigating using the ViewCube
      4m 56s
    2. Navigating using the navigation tools
      5m 31s
    3. Using the browser
      3m 34s
    4. Using the ribbon bar
      2m 47s
    5. Using the Quick Access Toolbar
    6. Using the Marking menu
      4m 33s
  4. 22m 6s
    1. Basic menu customization
      6m 40s
    2. Custom ribbon bar panels
      6m 22s
    3. Keyboard
      5m 9s
    4. Marking menu customization
      3m 55s
  5. 20m 24s
    1. Project file introduction
      3m 54s
    2. The project file: .ipj
      4m 4s
    3. Setting up the project file for this course
      7m 11s
    4. Frequently used subfolders
      5m 15s
  6. 22m 31s
    1. Introducing sketching
      4m 55s
    2. Working with origin geometry
      4m 46s
    3. Understanding constraints
      7m 39s
    4. Application options
      5m 11s
  7. 50m 43s
    1. Drawing lines
      6m 29s
    2. Creating rectangles and arcs
      9m 26s
    3. Creating splines
      6m 35s
    4. Creating slots
      5m 43s
    5. Construction geometry
      6m 18s
    6. Dimensioning
      9m 34s
    7. Parameters
      6m 38s
  8. 30m 33s
    1. Move, copy, and rotate sketch geometry
      7m 43s
    2. Trim, extend, and split sketch geometry
      6m 20s
    3. Scale, stretch, and offset geometry
      7m 47s
    4. Creating rectangular, circular, and mirrored sketch patterns
      8m 43s
  9. 19m 27s
    1. Understanding work features
      3m 58s
    2. Creating offset work planes
      4m 17s
    3. Creating work planes
      6m 59s
    4. Creating work axes and points
      4m 13s
  10. 16m 50s
    1. Projecting geometry
      7m 7s
    2. Importing AutoCAD data
      9m 43s
  11. 54m 31s
    1. Part feature introduction
      5m 14s
    2. Creating a base extrusion feature
      8m 46s
    3. Keeping extrusions connected with the To next face/body option
      4m 29s
    4. Creating revolves
      7m 42s
    5. Creating complex shapes with the Loft tool
      8m 50s
    6. Adding control to a loft by creating rails
      8m 40s
    7. Creating a sweep feature
      6m 16s
    8. Creating a sweep feature with model edges
      4m 34s
  12. 24m 44s
    1. Adding holes to a part model
      10m 10s
    2. Modifying edges with fillets and chamfers
      4m 18s
    3. Hollowing parts with the shell feature
      10m 16s
  13. 25m 37s
    1. Creating rectangular feature patterns
      9m 23s
    2. Adding intelligence to a rectangular pattern
      5m 45s
    3. Creating rectangular feature patterns along a path
      2m 22s
    4. Creating circular feature patterns
      3m 11s
    5. Mirroring part features
      4m 56s
  14. 31m 30s
    1. Understanding iParts and iFeatures
      3m 19s
    2. Creating an iPart from an existing part
      11m 0s
    3. Changing between versions inside an iPart
      5m 50s
    4. Extracting iFeatures for use in other parts
      5m 11s
    5. Inserting iFeatures into a part
      6m 10s
  15. 26m 23s
    1. Introduction to assemblies
      1m 59s
    2. Placing components
      7m 40s
    3. Creating components in the context of an assembly
      8m 9s
    4. Placing fasteners from the Content Center
      8m 35s
  16. 46m 14s
    1. The Mate/Flush constraint
      9m 42s
    2. The Angle constraint
      5m 34s
    3. The Insert constraint
      3m 55s
    4. Driving constraints
      10m 0s
    5. The Transitional tab
      3m 50s
    6. The Motion tab
      9m 18s
    7. Contact sets
      3m 55s
  17. 18m 38s
    1. Adding materials to parts in an assembly
      4m 3s
    2. Visual styles
      4m 52s
    3. Enhancing the design experience with shadows
      2m 9s
    4. Adding a ground plane, reflections, and perspective to a design
      3m 34s
    5. Changing the lighting style to match a design
      4m 0s
  18. 39m 11s
    1. Exploring initial drawing creation
      5m 6s
    2. Placing base and projected views
      9m 31s
    3. Creating section views
      8m 0s
    4. Creating detail views
      3m 56s
    5. Creating a breakout view
      5m 41s
    6. Creating auxiliary and cropped views
      6m 57s
  19. 25m 57s
    1. Creating general dimensions
      9m 20s
    2. Changing dimension precision
      4m 21s
    3. Creating baseline, ordinate, and chain dimensions
      5m 51s
    4. Creating baseline, ordinate, and chain dimension sets
      6m 25s
  20. 10m 43s
    1. Creating individual balloons
      4m 34s
    2. Creating a group of balloons with automatic ballooning
      3m 40s
    3. Adding a parts list to the drawing
      2m 29s
  21. 30s
    1. Next steps

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