chapter 4 creating placed features
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Chapter 4 Creating Placed Features. Chapter 4 - Objectives. After completing this chapter, you will be able to perform the following: Create fillets Create chamfers Create holes Create internal and external threads Shell a part Add face draft to a part Create work axes - PowerPoint PPT PresentationTRANSCRIPT
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Chapter 4Creating Placed
Features
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• After completing this chapter, you will be able to perform the following: – Create fillets – Create chamfers – Create holes – Create internal and external threads – Shell a part – Add face draft to a part – Create work axes – Create work points – Create work planes – Pattern features
Chapter 4 - Objectives
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Fillets• Fillets add material• Rounds remove material– Fillet dialog box
• Constant • Variable• Setbacks• Face• Full Round
– Edit fillet’s type & radius
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Fillets• Constant Tab
– Same radius from beginning to end
– Single set or multiple set
• Select Edge and Radius– Preview image
• Select Mode– Edge– Loop– Feature– All Fillets– All Rounds
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Fillets• Constant Tab
– More options – Roll along sharp edges– Rolling ball where possible
– Automatic edge chain– Preserve all features
Preserve All Features
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Fillets• Variable Tab
– Different start and end radius
– Edges– Point– Radius– Position– Smooth Radius Transition
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Fillets• Setbacks Tab
– Transition from a vertex– Three or more filleted edges meet at a vertex
– Fillets can have different radius
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Fillets• Face Fillet
– Select two or more faces
– Faces do not need to be adjacent
– Consume features
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Fillets• Full Round
– Fillet tangent to selected faces
– Select three faces
– Faces do not need to be adjacent
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Chamfers•Chamfers
–Beveled edges–Interior & exterior edges–Single or multiple selection–Edit type or distance–Method
•Distance•Distance and Angle•Two Distances
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Chamfers• Chamfers
– Method• Distance• Distance and Angle
• Two Distances
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Chamfers•Chamfers
–Edge and Face•Edge•Face•Flip
–Distance and Angle•Distance•Angle
–Edge Chain and Setback•Edge Chain•Setback•Preserve All Features
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Exercise 4-1• Creating Fillets and Chamfers
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Holes• Holes
– Drilled– Counterbore– Spotface– Countersink
• Hole Type• Simple Hole• Tapped• Clearance Hole• NPT
• Holes dialog box• Placement• Hole Type• Size• Drill Point• Termination
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Holes•Holes
–Placement•From Sketch
–Hole Center–Sketched Entities
•Linear–Select Face–1st Reference Edge–2nd Reference Edge
•Concentric–Select Face–Circular Face or Edge
•On Pont–Work Point–Positioned to an axis, edge or work plane
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Hole• Tapped / NPT Hole– Thread Type– Size– Designation– Class– Diameter– Full Depth– Left Hand– Right Hand
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Holes• Clearance Hole– Standard– Fastener Type– Size– Fit
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Exercise 4-2• Creating Holes
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Threads•Threads
–Internal and external–Graphical representation–Thread feature–Hole tool vs. Thread tool–Excel spreadsheet
•C:\Program Files\Autodesk\Inventor 2008\Design Data\Thread.xls
•Standards
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Threads•Threads
–Location Tab•Face•Display in Mode•Thread Length
–Full Length–Flip–Length–Offset
–Specification Tab•Thread Type•Nominal Size•Pitch•Class•Right hand or Left hand
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Exercise 4-3• Creating Threads
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Shelling• Shelling
– Thin walls (thickness)
– Remove material (scooping out)
– Hollow inside– Shell dialog box
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• Shelling– Remove Faces– Thickness– Direction
• Inside• Outside• Mid-plane
– Unique Face Thickness• Different thickness
• Specific face thickness
• More button
Shelling
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• More TabWhen no precise shell solution exists, allows a deviation from the specified thickness – Mean– Never too thin– Never too thick– Optimized– Specify Tolerance
Shelling
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Exercise 4-4• Shelling a Part
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Face Draft• Face Draft
– Feature that applies an angle
– Internal or external face
– Face Draft dialog box• Fixed Edge• Fixed Plane• Pull Direction
– Direction– Flip
• Faces– Arrow displayed & direction
• Draft Angle
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Face Draft• Face Draft
– Fixed Edge•Pull Direction•Select near edge to start draft
– Fixed Plane•Select planar face or work plane
•Flip plane if needed
•Select planes to apply draft
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Exercise 4-5• Creating Face Drafts
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Work Features• Work Features
– Special construction features
– Help position & define new features
– Parametrically attached
– Types• Work Planes• Work Axes• Work Points
– Different situations
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Work Features•Creating a Work Axis
–Acts like a construction line
–Infinite in length–Axis of rotation
•Creating Work Points–Grounded Work Point
• Positioned in 3D space
• Not associated• Remains in the specified location
–3D Move/Rotate dialog box
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Exercise 4-6
• Creating Work Axes
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Work Features• Creating Work Planes
– Understand when you need to create a work plane
– Rectangular plane– Parametric – Larger than the part– Edited and deleted like any other feature
– Methods – lots of solution• Visual Syllabus
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Work Features• Creating Work Planes– Types of Work Planes• Angled work plane• Offset work plane• Tangent work plane• 3-point work plane• 2-edge or 2-axis work plane
• Midway between two parallel planes
– Feature Visibility• Off or On
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Exercise 4-7
• Creating Work Planes
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Patterns•Patterns
–Duplicate the feature multiple times–Distance or angle–Types
•Rectangular and circular–Suppressed–Child - parent relationship–Editing
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Patterns• Rectangular Patterns– Rectangular pattern dialog box• Direction 1• Direction 2
– Options - More button• Start• Termination• Orientation
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Patterns• Circular Patterns– Circular Pattern dialog box•Placement•Creation Method•Positioning Method
•Flip• Linear Pattern
– Pattern Along a Path•Ellipse, spline, series of curves
•2D or 3D
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Exercise 4-8• Creating Rectangular Patterns
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Exercise 4-9• Creating Circular Patterns
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Exercise 4-10
• Creating Path Patterns
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Applying Your Skills
• Skill Exercise 4-1• Skill Exercise 4-2