Chapter Four: Creating Placed Features Chapter Outline This chapter provides instruction on the following topics and provides exercises for students to practice their skills. Day Two Topic: How to create placed features Chapter Topic Estimated Time (Hours) 4 Introduce how to create placed features # of PowerPoint slides Recommended 1 X 4 Fillets and chamfers 8 X 4 Exercise 4-1: Creating fillets and 1 X chamfers 4 Holes 4 X 4 Exercise 4-2: Creating holes 1 X Optional 4 Threads 3 X 4 Exercise 4-3: Creating threads 0.5 1 X 4 Shelling 0.5 3 X 4 Exercise 4-4: Shelling a part 1 X 4 Face Draft 2 X 4 Exercise 4-5: Creating face 1 X drafts 4 Work features 0.5 3 X 4 Exercise 4-6: Creating work 1 X axes 4 Work planes 2 X 4 Exercise 4-7: Creating work 1 X planes 4 Patterns 0.5 4 X Instructor-led demo: Pattern along a path 4 Exercise 4-8: Creating rectangular patterns 4 Exercise 4-9: Creating circular patterns 4 Exercise 4-10: Creating path patterns 1 X 1 X 1 X X Chapter four: creating placed features 4-1
4 Review Summary 1 X 4 Applying Your Skills: Exercises 1 X 4-1, 4-2 4 Review Checking Your Skills answers at end of chapter X Total 2 41 4-2 Chapter four: creating placed features
Slide 1 Autodesk Inventor 6 Creating Placed Features Slide 2 Objectives - Sketching, Constraining, and Dimensioning Chapter Objectives Create fillets, chamfers and holes Create internal and external threads Shell a part Add face draft to a part Create work axes, points and planes Pattern features 2 Chapter four: creating placed features 4-3
Slide 3 Creating Placed Features Fillets & Chamfers Slide 4 Fillets Fillets add material Rounds remove material Fillet dialog box Constant Variable Setbacks Methodology Edit fillet s type & radius 4 4-4 Chapter four: creating placed features
Slide 5 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 5 Slide 6 Fillets Constant Tab More options Roll along sharp edges Rolling ball where possible Automatic edge chain Preserve all features 6 Chapter four: creating placed features 4-5
Slide 7 Fillets Variable Tab Different start and end radius Edges Point Radius Position Smooth Radius Transition 7 Slide 8 Fillets Setbacks Tab Transition from a vertex Three filleted edges Vertex Three different radius 8 4-6 Chapter four: creating placed features
Slide 9 Chamfers Chamfers Beveled edges Interior & exterior edges Single or multiple selection Edit type or distance Method Distance Distance and Angle Two Distances 9 Slide 10 Chamfers Chamfers Method Distance Distance and Angle Two Distances 10 Chapter four: creating placed features 4-7
Slide 11 Chamfers Chamfers Edge and Face Edge Face Flip Distance and Angle Distance Angle Edge Chain and Setback Edge Chain Setback Preserve All Features 11 Slide 12 Exercise 4-1 Creating Fillets and Chamfers 12 4-8 Chapter four: creating placed features
Slide 13 Creating Placed Features Holes Slide 14 Holes Holes Drilled Counterbore Countersink Tapped Holes dialog box Centers button Multiple hole centers Preview image Edit type of hole feature or distances 14 Chapter four: creating placed features 4-9
Slide 15 Holes Holes Type Tab Centers Hole Type Termination Dimensions Threads Tab Tapped Full Depth Thread Type Left Hand Right Hand Dimensions 15 Slide 16 Holes Holes Size Tab Nominal Size Pitch Class Diameter Dimensions Options Tab Drill Point Countersink Angle Hole Centers Sketched Entities Points 16 4-10 Chapter four: creating placed features
Slide 17 Exercise 4-2 Creating Holes 17 Slide 18 Creating Placed Features Threads Chapter four: creating placed features 4-11
Slide 19 Threads Threads Internal and external Graphical representation Thread feature Hole tool vs. Thread tool Thread Feature dialog Excel spreadsheet Thread.xls Standards 19 Slide 20 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 20 4-12 Chapter four: creating placed features
Slide 21 Exercise 4-3 Creating Threads 21 Slide 22 Creating Placed Features Shelling Chapter four: creating placed features 4-13
Slide 23 Shelling Shelling Thin walls (thickness) Remove material (scooping out) Hollow inside Shell dialog box 23 4-14 Chapter four: creating placed features
Slide 24 Shelling Shelling Remove Faces Thickness Direction Inside Outside Mid-plane Unique Face Thickness Different thickness Specific face thickness More button 24 Technical Note Troubleshooting tip: 1. In the case of shelling failures, try reducing the thickness (much smaller value). 2. Remove complex modeling features that can be applied later (such as variable radius fillets or complex fillets with corner blends) Chapter four: creating placed features 4-15
Slide 27 Face Draft Face Draft Feature that applies an angle Internal or external face TaperEdge Face Draft dialog box Pull Direction Direction Flip Faces Arrow displayed & direction Draft Angle 27 Slide 28 Exercise 4-5 Creating Face Drafts 28 Chapter four: creating placed features 4-17
Slide 29 Creating Placed Features Work Features Slide 30 Work Features Work Features Special construction features Help position & define new features Parametrically attached Types Work Planes Work Axes Work Points Different situations 30 Technical Note In Line work features may also be created to assist in the construction of other work features such as work axes and planes (i.e. creating work points in the context of the work plane feature to help in construction) This is also reflected in the Browser structure 4-18 Chapter four: creating placed features
Slide 31 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 31 Technical Note The 3d move/rotate tool in the graphics screen allows the user to directly interact with it. For most situations, the user should be able to use just the 3d move/rotate tool and the context menu to get the job done. The 3d Move/Rotate functionality for grounded work points is only available in the Part Environment and not in the Assembly Environment (unless activating a part in place) The increment in which the 3d tool snaps is set in the Document Settings -> Modeling tab Chapter four: creating placed features 4-19
Slide 32 Exercise 4-6 Creating Work Axes 32 Slide 33 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 Show Me animations 33 4-20 Chapter four: creating placed features
Slide 34 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 34 Slide 35 Exercise 4-7 Creating Work Planes 35 Chapter four: creating placed features 4-21
Slide 38 Patterns Rectangular Patterns Rectangular pattern dialog box Direction 1 Direction 2 Options - More button Start Termination Orientation 38 Instructor-led demo for pattern along a path 1. Open PatternAlongPath.ipt 2. Click Rectangular Pattern 3. Select the rectangular extrusion at the end of the spline 4. Click the Direction 1 arrow, then select the spline 5. Enter 8 in Column Count 6. In the drop down list, select Curve length 7. Click OK 8. Click Rectangular Pattern 9. Select the feature at the end of the zig-zag line 10. Click the Direction 1 arrow, then select the line next to the hole 11. Enter 9 in Column Count 12. Enter 10 in Column Spacing 13. In the drop down list, select Spacing 14. Click OK 15. Close the file, do not save any changes End of demonstration Chapter four: creating placed features 4-23
Slide 39 Exercise 4-8 Creating Rectangular Patterns 39 4-24 Chapter four: creating placed features
Slide 40 Patterns Circular Patterns Circular Pattern dialog box Placement Creation Method Positioning Method Linear Pattern Pattern Along a Path Ellipse, spline, series of curves 2D or 3D 40 Technical Note For the most predictable results when patterning along a path, have the path start at the location and alignment of the feature being patterned. Slide 41 Exercise 4-9 Creating Circular Patterns 41 Chapter four: creating placed features 4-25
Slide 42 Exercise 4-10 Creating Path Patterns 42 Slide 43 Summary To Create a hole feature Create a fillet feature Create a chamfer feature Create a shell feature Create a rectangular pattern Create a circular pattern Create a Thread Feature Create Face Draft Create a Work Plane Create a Work Axis Create a Work Point Create a Grounded Work Point Do This Click the Point, Hole Center tool on the Sketch toolbar to sketc h a hole center. Click the Hole tool on the Features toolbar or from the Panel Bar Click the Fillet tool on the Features toolbar or from the Panel Bar Click the Chamfer tool on the Features toolbar or from the Panel Bar Click the Shell tool on the Features toolbar or from the Panel Bar Click the Rectangular Pattern tool on the Features toolbar or from the Panel Bar Click the Circular Pattern tool on the Features toolbar or from the Panel Bar Click the Thread tool on the Features toolbar or from the Panel Bar Click the Face Draft tool on the Features toolbar or from the Panel Bar Click the Work Plane tool on the Features toolbar or Panel Bar Click the Work Axis tool on the Features toolbar or Panel Bar Click the Work Point tool on the Features toolbar or Panel Bar Click the Grounded Work Point tool on the Features toolbar or Panel Bar Tool 43 4-26 Chapter four: creating placed features
Slide 44 Applying Your Skills Skill Exercise 4-1 44 Slide 45 Applying Your Skills Skill Exercise 4-2 45 Chapter four: creating placed features 4-27
Answers to Checking Your Skills Use this section to review the answers to the questions at the end of chapter four. 1 True False When creating a fillet feature that has more than one selection set, each selection set is displayed as an individual feature in the Browser. False. When multiple selection sets exist, they are created as a single fillet feature. 2 In regards to creating a fillet feature, what is a smooth radius transition? The fillet feature blends from the start to the end radius as a smooth transition, similar to a cubic spline. Otherwise the fillet blends from the start to the end radius as a straight line. 3 True False When creating a fillet feature with the All Fillets option, material is removed from all concave edges. True 4 True False When creating a chamfer feature with the Distance and Angle option only one edge can be chamfered at a time. False, Multiple edges can be selected when using the Distance and Angle option of the Chamfer feature. 5 True False When creating a Hole feature, you do not need to have an active sketch. False, A sketch must exist and contain either a point, hole center, an endpoint of a sketch curve, or a center-point of an arc, circle, or circular edge to select use as the center of the hole. 6 What is a Hole Center used for? Hole Center s are used to represent the center of the hole(s) that will be placed with the Hole tool. 7 True False Thread features are graphically represented on the part and will annotated correctly when drawing views are generated. True 8 True False A part may contain only one shell feature. False, You can create multiple shell features in a part. 9 When creating a face draft feature, what is the definition of pull direction? The pull direction is used to specify how the mold will be pulled from the part. The angle of the face draft feature expands in this direction. 10 True False The only method to create a work axis is by clicking a cylindrical face. False, Some additional methods to create a work axis besides a cylindrical face are: 1. Two points on a part. 2. An edge of a part. 3. A work point or sketch point and a plane or face. 4. Two non-parallel planes 11 True False Every new sketch needs to be derived from a work plane feature. False, You can use any planar face or work plane to create a new sketch. 4-28 Chapter four: creating placed features
12 Explain the steps to create an offset work plane. 1. Click the Work Plane tool. 2. Click a plane and then drag the new work plane to a selected location. 3. Enter a value in the Offset dialog box to specify the offset distance for the new work plane. 4. Click the check mark in the Offset dialog box or press ENTER on the keyboard. 13 True False Work planes cannot be based on the default work planes. False, You can reference the default work planes to create any type of work plane that needs a planar face as input for its definition. 14 True False When creating a rectangular pattern, the directions that the features are duplicated along must be horizontal and vertical. False, You can reference any edge to be used as a direction for a rectangular pattern. The edge can be at an angle, horizontal, vertical, or a spline. 15 True False When creating a circular pattern, only a work axis can be used as the axis of rotation. False, You can use any edge, axis or circular face. Chapter four: creating placed features 4-29