Chapter 4 Creating Placed Features
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Transcript of Chapter 4 Creating Placed Features
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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 – Shell a part – Create work axes – Create work points – Create work planes– Create a UCS – 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
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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
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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• Clearance Hole
– Standard– Fastener Type– Size– Fit
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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
• From Sketch– Hole Center– Sketched Entities
• Linear– Select Face– 1st Reference Edge– 2nd Reference Edge
•Holes–Placement
• Concentric– Select Face– Circular Face or Edge
• On Pont– Work Point– Positioned to an axis,
edge or work plane
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Exercise 4-2
• Creating Holes
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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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Exercise 4-3
• Shelling a Part
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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 Axis• Creating a Work Axis
– Acts like a construction line
– Infinite in length
– Axis of rotation
– Create a Work Axis• Filtered Options – Only select data that fits
the selected option
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Exercise 4-4
• Creating Work Axes
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Work Points• Creating Work Points
– Point • Filtered Options – Only select data that fits the
selected option
– Grounded Work Point• Positioned in 3D space
• Not associated
• Remains in the specified location
– 3D Move/Rotate dialog box
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Work Planes• 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– Filtered Options - Only select
data that fits the selected option
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Work Planes• Types of Work Planes
• Parallel to Plane through Point• Midplane between Two Parallel
Planes• Midplane of Torus• Angle to Plane around Edge• Three Points• Offset from Plane• Two Coplanar Edges
• Tangent to Surface through Edge
• Tangent to Surface through Point
• Tangent to Surface and Parallel to Plane
• Normal to Axis through Point• Normal to Curve at Point
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UCS User Coordinate System• Use like a work plane• Place on existing geometry• Position with absolute coordinates• No limit to the number of UCSs• Constrain UCS to UCS• Contains
– 3 planes– 3 Axes– Center point
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Feature Visibility• Control visibility of
– Planes– Axes– Points– Construction surfaces– Sketches– UCS– Turn off visibility of individual objects
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Exercise 4-5
• Creating Work Planes and a UCS
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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• Linear Pattern
– Pattern Along a Path• Helix, ellipse, spline,
series of curves• 2D or 3D
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Patterns• Circular Patterns
– Circular Pattern dialog box
• Placement• Creation Method• Positioning Method• Flip
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Exercise 4-6
• Creating Rectangular Patterns
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Exercise 4-7
• Creating Circular Patterns
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Exercise 4-8
• Creating a Pattern Along a Nonlinear Path
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Applying Your Skills
Skill Exercise 4-1 Skill Exercise 4-2
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Checking Your Skills1. True__ False__ When creating a fillet feature that has more than one selection set, each selection set
appears as an individual feature in the browser.2. In regard to creating a fillet feature, what is a smooth radius transition?3. True__ False__ When you are creating a fillet feature with the All Fillets option, material is removed from
all concave edges.4. True__ False__ When you are creating a chamfer feature with the Distance and Angle option, you can
only chamfer one edge at a time.5. True__ False__ When you are creating a hole feature, you do not need to have an active sketch.6. What is a Point, Center Point used for?7. True__ False__ A part may contain only one shell feature.8. True__ False__ The only method to create a work axis is by clicking a cylindrical face.9. True__ False__ You need to derive every new sketch from a work plane feature.10. Explain the steps to create an offset work plane.11. True__ False__ The options for creating work features filter out geometry that is not valid for the selected
option.12. True__ False__ You cannot create work planes from the default work planes.13. True__ False__ A UCS can only be placed on existing geometry.14. True__ False__ When you are creating a rectangular pattern, the directions along which the features are
duplicated must be horizontal or vertical.15. True__ False__ When you are creating a circular pattern, you can only use a work axis as the axis of
rotation.