1. Chapter 3 Creating and Editing Sketched Features

2. Chapter 3 - Objectives After completing this chapter, you will be able to –Understand what a feature is –Use the Autodesk Inventor Browser to edit parts –Extrude a sketch into a part –Revolve a sketch into a part –Edit features of a part –Edit the sketch of a feature –Make an active sketch on a plane –Create sketched features using one of three operations: cut, join, or intersect

3. Understanding Features Describing Features Sketch into a 3D feature Base feature Placed features Edited, deleted, or reordered –Consumed and Unconsumed Sketches Unconsumed sketch –not yet been used in a feature Profiles –Feature consumes the profile Consumed sketch

4. Using the Browser for creating and editing Autodesk Inventor Browser –Displays the history of the file –Create, edit, rename, copy, delete, and reorder features or parts –Expanded or Collapsed

5. Using the Browser for creating and editing Autodesk Inventor Browser –Dependent features Parent-child relationship –Filter out some object types Funnel icon

6. Using the Browser for creating and editing Autodesk Inventor Browser –Default names Extrusion1 –Locate parts and features –Resized while docked –Close Browser –Right-click –Double-click

7. Switching Environments –Sketch & Part environment Automatically Tools available to current situation

8. Part Features Feature Tools –Part environment Panel Bar icons

9. Extruding a Sketch –Depth along Z-axis –Preview –Extrude dialog box Shape & More tabs Values & options –Shape Profile Multiple closed profiles

10. Extruding a Sketch –Operation Join = adds Cut = removes Intersect = common –Extents Type & Distance –Termination How sketch will extrude –Distance –To Next –From To –To –All

11. Extruding a Sketch –Extents Distance –measure two points –most recent values –drag it –units appear red –preview Direction –3 buttons –flip the extrusion direction –equal distances, mid-plane

12. Extruding a Sketch –Output Solid Surface –More Taper Alternate solution Minimum solution

13. Exercise 3-1 Extruding a Sketch

14. Revolving a Sketch –Create cylindrical parts –Revolve sketch around a straight edge or axis –Shape Profile Axis –Operation Join Cut Intersect –Extents Full Angle –Output Solid Surface

15. Revolving a Sketch Centerlines & Diametric Dimensions –Specify linear diameter dimensions –Quarter section –Place diameter dimensions Changed to normal line to centerline

16. Exercise 3-2 Revolving a Sketch

17. Editing a Feature –Feature consumes all the dimensions –To edit sketch or feature Dimensions values Taper Operation Termination Output type –For base features, everything can be changed except join operation

18. Editing a Feature –Editing a Feature size Change the dimensional values multiple methods In Browsers double-click –right-click –expand the children, right-click Command bar –Feature priority –Update button

19. Editing a Feature 3D Grips –Used to push or pull the faces Extruded feature Revolved feature Sweep feature

20. Editing a Feature Move Feature – Move a face of a part 3D Grips Triad move

21. Editing a Feature –Renaming Features and Sketches Default name Locate Descriptive to your design intent Rename, slowly double-click –Feature Color Parts become complex Feature Properties dialog box

22. Editing a Feature –Deleting a Feature –Failed Features Browser turns Red, an alert Not successfully regenerated Undo Sketch Doctor –Editing a Feature’s Sketch Add & remove objects Adding geometry, lines, arcs, circles and splines Deleting geometry

23. Exercise 3-3 Editing Features and Sketches

24. Sketched Features –You draw on a plane –Add or remove material from the part –Unlimited –Needs it’s own plane

25. Defining the Active Sketch Plane –Each sketch must exist on its own plane –Requirements to assign a plane Inventor Part Part active Planar face or Work plane –Make a sketch active Face Cycling –Dynamic face highlighting –Help select the correct face –Select Other tool –Time delay

26. Exercise 3-4 Sketch Planes

27. Projecting Part Edges Building parts partially based on existing geometry Reference faces, edges, or loops Associative link –Direct Model Edge Referencing Automatically project edges Create dimensions and constraints Control the automatic projection

28. Projecting Part Edges –Creating Reference Geometry Move the cursor over an edge Click an edge Reference edges –Project Loop and Chain Option Project Geometry tool Edges Loops Faces

29. Summary ToDo This Place a sketch planeClick the Sketch tool on the command bar and click an existing face or work plane. Edit sketch featuresRight-click the sketch icon in the Browser, and then select Edit Sketch from the menu or use 3D Grips or Move Feature. Define relationships to existing features Click the Join, Cut, or Intersect operation. Create an extruded featureClick the Extrude tool on the Panel Bar or on the Features toolbar. Create a revolved featureClick the Revolve tool on the Panel Bar or on the Features toolbar. Display sketch geometryRight-click the Sketch icon in the Browser, and then select Visibility from the menu. Project faces, loops, or edges from existing features Click the Project Geometry tool on the Panel Bar or on the Sketch toolbar.

30. Applying Your Skills Skill Exercise 3-1 Skill Exercise 3-2 Skill Exercise 3-3