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Lecture 2 Part design (solid modeling )

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Lecture 2 Part design (solid modeling ) REFERENCE ELEMENTS No mass and volume Used only to assist you in the creation of the models Invoke the tools to create reference elements using the Reference Elements toolbarThe Reference Elements toolbarReference Planes Default Planes-xy plane -yz plane -zx plane

Creating New PlanesToolbar: Reference Elements > PlaneThe Plane Definition dialog box Creating a Plane at an Offset from an Existing Plane/Planar Face Creating a Plane Parallel to an Existing Plane and Passing through a Point

Part DesignBase Features

Pad PocketShaftReference Elements

PointLinePlane

Dress-up Features

FilletsChamfersTransformation Features

TranslationRotationMirrorPatternScale

SlotHoleGrooveDraft Shell Thickness

CREATING BASE FEATURES BY EXTRUSIONMenu: Insert > Sketch-Based Features > PadToolbar: Sketch-Based Features > Pads > PadThe Pads toolbar Select the sketch and then choose the Pad button from the Pads toolbar

The Pad Definition dialog box

The sketch after exiting theSketcher workbench

Dynamically dragging the Limit handle to specify the depth of extrusion

The model after extruding the sketch Extruding the Sketch Using the Profile Definition Dialog BoxThe Profile Definition dialog box

A multi-contoured sketch

Extruded contours

CREATING BASE FEATURES BY REVOLVING SKETCHESMenu: Insert > Sketch-Based Features > ShaftToolbar: Sketch-Based Features > ShaftThe Shaft Definition dialog box

The sketch and the axis aroundwhich the sketch will be revolvedThe model after creating the shaft feature

Tutorial 2In this tutorial, you will create the base feature of the model shown in Figure by extruding a sketch drawn on the yz plane

Figure A Solid model for Tutorial 2

Figure B Views and dimensions for Tutorial 2 Tutorial 1In this tutorial, you will create the model shown in Figure A. Its views and dimensions are shown in Figure B.

Figure A Solid model for Tutorial 1

Figure B Views and dimensions for Tutorial 1 OTHER SKETCH-BASED FEATURESCreating Drafted Filleted Pad FeaturesMenu: Insert > Sketch-Based Features > Drafted Filleted PadToolbar: Sketch-Based Features > Pads drop-down > Drafted Filleted Pad Extruded feature having drafted faces and filleted edges Draw a sketch and exit the Sketcher workbench Choose the Drafted Filleted Pad button from the Pads toolbarThe Drafted Filleted Pad Definition dialog box

The sketch to be extruded and theplane to be selected as the second limitThe resulting drafted filleted padCreating Multi-Pad FeaturesMenu: Insert > Sketch-Based Features > Multi-PadToolbar: Sketch-Based Features > Pads drop-down > Multi-Pad

The multi-loop sketch to beextrudedThe resulting extruded feature using the Multi-Pad tool

The sketch to be extruded to create the pocket featureThe resulting pocket feature

Pocket feature with the defaultmaterial removal side selectedPocket feature after flipping the material removal sideCreating Drafted Filleted Pocket FeaturesMenu: Insert > Sketch-Based Features > Drafted Filleted PocketToolbar: Sketch-Based Features > Pockets drop-down > Drafted Filleted Pocket

The drafted filleted pocket featureCreating Multi-Pocket FeaturesMenu: Insert > Sketch-Based Features > Multi-PocketToolbar: Sketch-Based Features > Pockets drop-down > Multi-Pocket

The multi-pocket featureCreating Groove FeaturesMenu: Insert > Sketch-Based Features > GrooveToolbar: Sketch-Based Features > GrooveThe Groove Definition dialog box

Sketch for creating the groove featureThe resulting groove feature Tutorial 2In this tutorial, you will create the model shown in Figure A. Its views and dimensions are shown in Figure B.

Figure A Model for Tutorial 2Figure B Views and dimensions for Tutorial 2 Tutorial 3In this tutorial, you will create the model shown in Figure A. The views and dimensions of the model are shown in Figure B.

Figure A Solid model for Tutorial 3

Figure B Views and dimensions for Tutorial 3The following steps are required to complete this tutorial:

a. Draw the sketch of the base feature on the yz plane, and extrude the sketch to the required distance using the Pad tool, refer to Figures C and D.

Figure C The sketch of the base featureFigure D The model after creating the base featureb. Create the second feature, which is a pocket feature, refer to Figures E and F.

Figure E The sketch of the second featureFigure F Model after creating the second featuree. Create the last feature of the model, which is the pocket feature, refer to Figures K and L.

Figure K Sketch of the fifth featureFigure L The final modelc. Create the third feature by extruding the sketch drawn on a plane at an offset distance from the xy plane, refer to Figures G through H.

Figure G Sketch of the third featureFigure H Surface to be selectedd. Create the fourth feature, which is a groove feature, refer to Figures I and J.

Figure I Sketch of the fourth featureFigure J The model after creating the fourth featureCreating a Shell FeatureThe Shell Definition dialog boxMenu: Insert > Dress-Up Features > ShellToolbar: Dress-Up Features > Shell

Faces to be selected for removalResulting shelled model Tutorial 2In this tutorial, you will create the model of the Vice Jaw shown in Figure A. Its views and dimensions are shown in Figure B. After creating this model, you will edit some of its dimensions. Figure C shows the views and dimensions that need to be edited.

Figure A Model of the Vice Jaw for Tutorial 2

Figure B Views and dimensions of the Vice Jaw for Tutorial 2

Figure C Dimensions of the Vice Jaw to be modifieda. Create the base feature of the model by extruding the sketch drawn on the zx plane, refer to Figure D and E.

Figure D Sketch of the base featureFigure E Model after creating the base featureb. Create the second feature of the model by extruding the sketch drawn on the front face of the base feature, refer to Figures F and G.

Figure F Sketch of the second featureFigure G Model after creating the second featurec. Create the third feature of the model by extruding a rectangular sketch drawn on the front face of the base feature, refer to Figures H and I.

Figure H Sketch of the third featureFigure I Model after creating the third featured. Create the holes using the Hole tool, refer to Figures J and K.e. Apply fillet to the edges of the model, refer to Figure K.

Figure J The model after creating the counterbore holeFigure K Final model after creating all featuresf. Modify the model, refer to Figure L.

Figure L The model after modifying the design Tutorial 3In this tutorial, you will create the model shown in Figure A. After creating this model, you will edit its design by replacing the counterbored holes with countersunk holes. Also, replace the rectangular slot by an elongated slot. Figure B shows the model after editing. The views and dimensions of the model to be created are shown in Figure C.

Figure A Model for Tutorial 3Figure B Final edited model

Figure C Views and dimensions of the model for Tutorial 3a. Create the base feature of the model by extruding the sketch drawn on the yz plane, refer to Figure D.

Figure D Model after creating the base featureThe following steps are required to complete this tutorial:b. Create a pad feature by extruding a sketch drawn on the front face of the base feature, refer to Figure E.

Figure E Model after creating the second featurec. Create the third and forth features by extruding the sketch drawn on the front face of the second feature, refer to Figures E and F.

Figure E Model after creating the third featureFigure F Model after creating the Pocket featured. Create the holes using the Hole tool and fillet the required edges, refer to Figure G.

Figure G The final model after creating all featuresf. Edit the design of the model, refer to Figures H and I

Figure H Edited sketch of the pocket featureFigure I Final edited model ADVANCED MODELING TOOLSCreating Rib FeaturesMenu: Insert > Sketch-Based Features > RibToolbar: Sketch-Based Features > Rib Sweep an open or a closed profile along an open or a closed center curveThe Rib Definitiondialog box

Closed profile and the center curve tobe selectedResulting rib feature

An unattached profile and the centercurveResulting rib feature

The profile, center curve, andpulling direction to be selected

The rib feature created by selectingthe Keep angle option

The rib feature created by selecting the Pulling direction option

Center curve, section, and pullingdirection to be selected

The rib feature with the Moveprofile to path check box selectedCreating Slot FeaturesMenu: Insert > Sketch-Based Features > SlotToolbar: Sketch-Based Features > SlotThe Slot Definition dialog box

The profile and the center curve Remove the material by sweeping a profile Choose the Slot button from the Sketch-Based Features toolbar

Resulting slot featureThe slot feature after selectingthe Merge slots ends check boxCreating Multi-Sections Solid FeaturesMenu: Insert > Sketch-Based Features > Multi-sections SolidToolbar: Sketch-Based Features > Multi-sections SolidThe Multi-Sections Solid Definition dialog box

Sections to be selected to create the multi-sections solidPreview of the resulting multi-sections solid feature

Creating Multi-Sections Solid Sections with Unequal Number of VerticesThe Multi-Sections Solid Definitiondialog box after choosing the Coupling tabThe Coupling dialog box

Sections, closing points, andcouplings

Resulting multi-sections solid feature Creating a Multi-Sections Solid Feature between a Circular and a Polygonal Section

Sections, closing points, and couplings

The preview of the resultingmulti-sections solid feature Creating a Multi-Sections Solid of the Sections along a SpineThe Multi-Sections Solid Definition dialog box after choosing the Spine tab

The sections and spine to be selected

Multi-sections solid feature createdwithout selecting the spine

Multi-sections solid featureafter selecting the spine Creating a Multi-Sections Solid Feature with RelimitationsThe Multi-Sections Solid Definition dialog box displayed after choosing the Relimitation tab

The sections and spine tobe selected

The multi-sections solid featurecreated on selecting the relimitation check boxes

The multi-sections solid featurecreated after clearing the relimitation check boxesCreating Removed Multi-Sections Solid FeaturesMenu: Insert > Sketch-Based Features > Removed Multi-sections SolidToolbar: Sketch-Based Features > Removed Multi-sections SolidThe Removed Multi-Sections Definition dialog box

Sections and the spine to be selectedResulting removedmulti-sections solid feature Tutorial 1In this tutorial, you will create the model of the Upper Housing shown in Figure A. Its orthographic views and dimensions are shown in Figure B.

Figure A Model of the Upper Housing for Tutorial 1Figure B Views and dimensions of the Upper Housing for Tutorial 1The following steps are required to complete this tutorial:a. Create the base feature of the model, refer to Figure C.

Figure C Base feature of the modelb. Create the rib feature, refer to Figures D through G.

Figure D Sketch of the center curveFigure E Sketch of the profile

Figure F Sketches for the rib featureFigure G The model after creating the rib featurec. Create the multi-sections solid feature, refer to Figures H and I.

Figure H Second section of the multi-sections solid featureFigure I Model after creating the multi-sections solid featured. Fillet the edges of the model, refer to Figure J.

Figure J Model after filleting the edgese. Shell the model by removing the bottom and the left planar face of the model, refer to Figure K.

Figure K Model after shellingf. Create the other features to complete the model, refer to Figure L.

Figure L Final model of the Upper Housing Tutorial 2In this tutorial, you will create the model of the Helical Gear shown in Figure A. Its views and dimensions are shown in Figure B.

Figure A Model of the Helical Gear for Tutorial 2Figure B Views and dimensions for Tutorial 2a. Create the base feature of the model, refer to Figures C and D.

Figure C The sketch for creating the Shaft featureFigure D Base feature of the modelb. Create a pad feature on the right of the base feature and then pattern it using the Circular Pattern tool, refer to Figures E and F.

Figure E The sketch for creating the pad featureFigure F The model after creating the circular pattern of the pad featurec. Draw the sketch of the first section of the gear tooth on the front face of the base feature, refer to Figures G and H.

Figure G Sketch created on the front planar faceFigure H Remaining entities of the sketch createdd. Draw the sketch of the second section, refer to Figure I.

Figure I The second section for the multi-section solide. Draw the sketch of the third section of the gear, refer to Figure J.

Figure J The third section for the multi-section solidf. Create a multi-sections solid feature using three sections, refer to Figure K through M.

Figure K Closing points and their directionsFigure L The preview of the resultant model

Figure M Final model of the Helical gear