Transcript Chapter 3 Creating and Editing Sketched Features

Chapter 3
Creating and Editing
Sketched Features
Chapter 3 - Objectives
• After completing this chapter, you will be
able to
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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
Understanding Features
• Describing Features
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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
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
Using the Browser for creating
and editing
• Autodesk Inventor Browser
– Dependent features
• Parent-child relationship
– Filter out some object types
• Funnel icon
Using the Browser for creating
and editing
• Autodesk Inventor Browser
– Default names
• Extrusion1
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Locate parts and features
Resized while docked
Close Browser
Right-click
Double-click
Switching Environments
• Switching Environments
– Sketch & Part environment
• Automatically
• Tools available to current situation
Part Features
• Feature Tools
– Part environment
• Panel Bar icons
Extruding a Sketch
• Extruding a Sketch
– Depth along Z-axis
– Preview
– Extrude dialog box
• Shape & More tabs
• Values & options
– Shape
• Profile
• Multiple closed profiles
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
Extruding a Sketch
•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
Extruding a Sketch
• Extruding a
Sketch
– Output
• Solid
• Surface
– More
• Taper
• Alternate
solution
• Minimum
solution
Exercise 3-1
• Extruding a Sketch
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
Revolving a Sketch
• Centerlines & Diametric
Dimensions
– Specify linear diameter
dimensions
– Quarter section
– Place diameter dimensions
• Changed to normal line to
centerline
Exercise 3-2
• Revolving a Sketch
Editing a Feature
• Editing a Feature
– Feature consumes all the
dimensions
– To edit sketch or feature
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Dimensions values
Taper
Operation
Termination
Output type
– For base features, everything
can be changed except join
operation
Editing a Feature
• 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
Editing a Feature
• 3D Grips
– Used to push or pull the faces
• Extruded feature
• Revolved feature
• Sweep feature
Editing a Feature
• Move Feature
– Move a face of a part
• 3D Grips
• Triad move
Editing a Feature
• 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
Editing a Feature
• Editing a Feature
–Deleting a Feature
–Failed Features
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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
Exercise 3-3
• Editing Features and Sketches
Sketched Features
• Sketched Features
– You draw on a
plane
– Add or remove
material from the
part
– Unlimited
– Needs it’s own
plane
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
Exercise 3-4
• Sketch Planes
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
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
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Project Geometry tool
Edges
Loops
Faces
Summary
To
Do This
Place a sketch plane
Click the Sketch tool on the command bar
and click an existing face or work plane.
Edit sketch features
Right-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 feature
Click the Extrude tool on the Panel Bar or
on the Features toolbar.
Create a revolved feature
Click the Revolve tool on the Panel Bar or
on the Features toolbar.
Display sketch geometry
Right-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.
Applying Your Skills
• Skill Exercise 3-1
• Skill Exercise 3-2
• Skill Exercise 3-3