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Chapter 3 Creating and Editing Sketched Features

This chapter guides you on how to create and edit sketched features in Autodesk Inventor. Learn about understanding features, sketching into 3D, using the browser for editing, extruding and revolving sketches, editing features, and projecting part edges.

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Chapter 3 Creating and Editing Sketched Features

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  1. Chapter 3Creating and Editing Sketched Features

  2. Chapter 3 - Objectives • After completing this chapter, you will be able to perform the following: • 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 • Project edges of a part

  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. Browser • 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 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 • Switching Environments • Sketch & Part environment • Automatically • Tools available to current situation

  8. Part Features • Feature Tools • Part environment • Panel Bar icons • Right-click in graphics window

  9. Extruding a Sketch • 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 • 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 • Extruding a Sketch • Output • Solid • Surface • More • Taper • Alternate solution • Minimum solution

  12. Exercise 3-1 • Extruding a Sketch

  13. Revolving a Sketch • 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

  14. Revolving a Sketch • Centerlines & Linear Diameter Dimensions • Specify linear diameter dimensions • Quarter section • Place diameter dimensions • Changed to normal line to centerline

  15. Exercise 3-2 • Revolving a Sketch

  16. Editing a Feature • 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 • Feature Priority

  17. Editing a Feature • Editing a Feature’s Sketch • Add & remove objects • Adding geometry, lines, arcs, circles and splines • Delete geometry

  18. Editing a Feature • 3D Grips • Used to push or pull the faces • Extruded feature • Revolved feature • Sweep feature • Red = Cut operation, • Green = Joined operation • Blue = Intersect operation

  19. Editing a Feature • Move Feature • Move a face of a part • 3D Grips • Triad move

  20. Editing a Feature • Editing a Feature • Renaming Features and Sketches • Default name • Locate • Descriptive to your design intent • Rename, slowly double-click • Feature Color • Feature Properties dialog box

  21. Deleting a Feature • Editing a Feature • Deleting a Feature • Failed Features • Browser turns Red, an alert • Not successfully regenerated • Undo • Sketch Doctor

  22. Exercise 3-3 • Editing Features and Sketches

  23. Sketched Features • Sketched Features • You sketch on a plane • Add or remove material from the part • Needs it’s own plane (planar face or based on a work plane)

  24. Defining the Active Sketch Plane • 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

  25. Slice Graphics • Slice Graphics • Obscuring the view • Plane that is difficult to see • Temporarily slice away • Parts or assemblies

  26. Exercise 3-4 • Sketch Planes

  27. Projecting Part Edges • 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 • 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 • Break Link

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

  30. Project Exercise – Chapter 3Creating and Editing Sketched Features • In Appendix A

  31. Checking Your Skills • What is a base feature? • True_ False_ When creating a feature with the Extrude or Revolve tool, you can drag the sketch to define the distance or angle. • Which objects can be used as an axis of revolution? • Explain how to create a diametric dimension on a sketch. • Name two ways to edit an existing feature. • True_ False_ Once a sketch becomes a base feature, you cannot delete or add constraints, dimensions, or objects to the sketch. • Name three operation types used to create sketched features. • True_ False_ A cut operation cannot be performed before a base feature is created. • True_ False_ Once a sketched feature exists, its termination cannot be changed. • True_ False_ Geometry that is projected from one feature to a sketch that defines another feature will update automatically based on changes to the original projected geometry.

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