ProE Surfacing - Module 10

Module 10: Manipulating Surfaces

Lab Exercises

If you are ready to start on the exercises for this module, please click the links below.

Exercise 1: Manipulating Surfaces on the Bottle Exercise 2: Manipulating Surfaces on the Shaver Exercise 3: Offsetting Surfaces for the Power Switch (Challenge) Exercise 4: Creating Design Variations of the Shaver (Challenge)

Lecture Review

If you would like to review a text-based version of the materials presented in this lecture, please click here.

IntroductionWhile working with surfaces, you often need to manipulate the surface features in order to capture your design intent. Also, you need to attach surfaces in order to create quilts.Pro/ENGINEER Wildfire 3.0 offers a series of editing tools that enable you to manipulate the shape, location, and attributes of surfaces and quilts.You can also manipulate quilts or entire models using the Warp tool, which enables you to stretch, taper, bend, or twist the quilts.

ObjectivesAfter completing this module, you will be able to:

Extend quilts. Trim quilts. Copy quilts. Merge quilts. Offset quilts. Transform quilts. Manipulate quilts or entire models using Warp.

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Extending Surfaces The Extend feature enables you to take an existing surface and extend it.

This feature will result in an extend feature in the model tree. There are four options that you can use when extending surfaces:

o To Plane. o Same. o Tangent. o Approximate.

About the figures: Extend to Plane – You use the To Plane option to extend the selected

surface edges in a direction normal to a specified terminating plane. Selection of the terminating plane sets both the direction and the terminating point of the extend.

Extend Same – The same functionality creates an extension that is the same type as the original surface. The original surface will be continued past its selected original boundary by a specified distance. This type of extend does not leave a tangent edge at the intersection of the old surface and the new extension. This is because the surface has the same properties (slope and curvature) on both sides of the intersection.

Extend Tangent – The Tangent option enables you to create the extension by constructing a ruled surface, at the edges selected for extension, that is tangent to the original surface. This method of extension results in the creation of a tangent edge.

Approximate Extend – With the Approximate Extend option, you create the extension as a boundary blend between the parent surface and the edges of the extension. This method is useful when extending the surface to a vertex, which does not lie along a straight edge.

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Extending Surfaces (cont.)Extend Options:

When you use the Same, Tangent, or Approximate methods of extension, the distance of the extend can vary, as shown in the top figure of this slide. You can add as many points as desired where the extended distance can be controlled.

There are two main sets of options that you can apply to extended surfaces while using the Same, Tangent, or Approximate methods of extension:

Edge Distance o NormBnd (default) – The distance of the extended surface at this

point is measured normal to the boundary. o Along Edge – The distance of the extended surface at this point is

measured along an extension of the underlying edge. Side Edge Definition (shown in the two figures at the bottom of this slide)

You can extend the edge continuing its shape, or extend normal to the boundary.

Ext Side Edge (default) – The side edge is extended. Normal to Bnd – A new edge is created that is normal to the boundary.

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Trimming QuiltsYou can trim surfaces in a variety of ways. Surface trim operations appear in the model tree as a Surface Cut.

Surface Trim – You can trim surfaces using standard tools like Extrude, Revolve, Sweep, Blend, Swept Blend, Variable Section Sweep, and Helical Sweep. While using these tools, you can exercise the respective options available in the tool. (No example shown on slide).

Thin Surface Trim – Similar to Surface trim. You must specify an additional blind depth for the trim, as well as an offsetting method.

Vertex Round – You can trim vertices of a quilt using the Vertex Round option. You can use this method to fillet the corners of a quilt.

Silhouette Trim – You can use this method to trim a quilt using its outline, as seen in a particular view orientation. This technique is useful for creating split surfaces in mold design.

Using Datum Planes – You can trim quilts or surfaces using datum planes. Using Quilts – You can use a quilt/surface to cut another quilt/surface. This

option is discussed further in the next slide. Using Curves – You can trim surfaces using datum curves that lie on that

surface. When trimming with a curve, you can retain either or both the sides.

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Trimming Quilts (cont.)Using Quilts

Flipping Sides – You can retain either Side 1 or Side 2 or both sides. Keeping Trimming Surface – By default, while trimming the object, the

quilt used to trim is absorbed. You have the option to retain it. Thin Trim – You use the Thin trim option to make the trimming object

behave as a thin object with an offset quilt. You can specify the offset distance and the type of offset, namely:

o Normal to Surface. o Automatic Fit. o Controlled Fit.

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Copying SurfacesThe Copy and Paste tools enable you to create a quilt directly on top of selected surfaces. The resulting quilt contains surfaces that are the same shape and size as their parent surfaces.To copy surfaces:

Select the surface(s) to be copied. Use the Copy and Paste tools. Specify Copying Options:

o Copy All Surfaces — Selects all surfaces for copying. o Exclude Surfaces and Fill Holes — Excludes selected surfaces and

fills holes in the selected surfaces. To select multiple surfaces, press SHIFT.

o Copy Inside Boundary — Copies all the surfaces inside a selected closed boundary loop.

Finish copying the surfaces.

Copying Surfaces (cont.) Selecting surfaces depending on the design intent is essential while copying

surfaces. Pro/ENGINEER Wildfire 3.0 enables you to add, remove, and edit surface sets while using the various editing tools including copying surfaces.

Selection Methods: Selecting single surfaces – Selects individual surfaces. Selecting solid surfaces – Selects all the surfaces of a solid. To select solid

surfaces, select a surface then right-click and select Solid Surfaces from the shortcut menu.

Selecting loop surfaces – Selects surfaces adjacent to a surface. To select loop surfaces, select a surface, press SHIFT and then select an edge.

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Using Anchor (Seed) and Boundary method – Selects all the surfaces from a specified surface, up to the specified surface. To use this method, select a surface (seed) then press SHIFT and select another surface (boundary).

Excluding surfaces – Press CTRL and then select individual surfaces from the set of selected surfaces.

Creating Offset Surfaces You can create a surface offset feature from a quilt or from a solid surface.

The offset surface remains linked to the reference surface. Offset options:

o Normal Offset — Offsets the surface normal to the original surface. This is the default offset provided by Pro/ENGINEER. You can also create an offset feature using two other methods.

o Auto Fit — Pro/ENGINEER scales the surfaces with respect to the automatically determined coordinate system and translates them as necessary. No additional user input is required. The surface thus created is approximately similar in shape to the original surface. It automatically calculates the best directions to translate the surfaces so that they appear as original ones.

o Controlled Fit — Creates a best-fit offset by scaling the original surface with respect to the specified coordinate system and translating it along the specified axes. In the figure, the offset surface has not been translated on the X-axis with reference to the coordinate system.

If Normal Offset fails, you may use Auto Fit. However, this method does not guarantee the uniform offset normal to surfaces. If the results of Auto Fit are not satisfactory, you may use Controlled Fit to aid in calculation.

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When you use Auto Fit or Controlled Fit to create an offset, the system attempts to make the distance between the original and the offset quilt no less than the input value. The methods that involve the scaling of geometry (Auto Fit and Controlled Fit) should be used only with convex geometry. For non-convex geometry, the offset distance may vary.

The direct feature creation tools available in Pro/ENGINEER, which use these options are:

o Thicken – Adding thickness to surfaces, using the Offset technique. o Offset – Offsetting the quilt or solid surface using the listed options.

Creating Offset Surfaces (cont.) Side Surfaces - When a surface is offset, you can also create the side quilts

between the original and the offset surface. The side surfaces remain unattached to either of the surfaces.

Special Handling/Exclude - Leaves out failed surfaces or any other selected surfaces from the offset operation that cannot be offset. An error message pertaining to the failed surface is displayed (Define Special Handling). This happens typically when the offset value exceeds the minimum radius value. You will see more on this later in the module.

o In the Offset feature, you have the choice of excluding some surfaces from the offset set. Use this option to remove the failed geometry while offsetting quilts.

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Creating Offset Surfaces (cont.)Offset Types:

Expand – A sketch needs to be defined with the direction offset. The surface is modified and the sketched profile is offset. The offset can happen normal to either a sketch or a surface.

With Draft – A sketch needs to be defined with the direction offset. The sketched profile is offset as an additional surface. The side surfaces may be drafted. The offset can happen either normal to a sketch or to a surface. The side surfaces may be straight or tangent at both ends to the original and offset surface.

In both of these options the same surface is offset so that a depression is seen from the other side of the offset.

Both of these options behave the same way, except that the With Draft option has other parameters, including draft and tangency.

You can use these options effectively for the creation of embossed logos or lettering on the parts. They can also be used to add embossed features on the bend edges in sheet metal components for strengthening the part.

The offset direction can be controlled by executing the options: o Normal to Sketch – The surface is offset in the direction normal to

the sketching plane. o Normal to Surface – The surface is offset in the direction normal to

the parent surface.

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Creating Offset Surfaces (cont.) Replace – This option is available when solid geometry is available. You can

replace the solid surface with another surface or quilt, as shown in the example. The Replace option has the ability to add or remove material simultaneously.

Offset Surfaces for Shelling Sometimes the shell feature results in geometry that is not desirable. Take a

look at the figure showing the cross-section of a shelled part. Notice how the inside corner edges have tapered towards the bottom. To avoid such geometry creation, you may use offset surfaces to create the shelled part.

o Offset Surfaces – The surfaces can be offset in sets.

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o Add Surfaces – You have to create some surfaces, depending on the design intent.

o Merge Surfaces – The surfaces created or offset can be merged to form an intersecting quilt, defining the inside surfaces of the desired shell.

o Cut Solid Part – The solid part is cut using the quilt that was created.

Offset Surfaces for Adding Thickness To create offset surfaces when a constant thickness is desired, you can use

the following steps: o Offset Surfaces – The surfaces can be offset in sets. You may need to

create some surfaces as per the design intent. o Extend/Add Surfaces – Extra surfaces may need to be added or

surfaces extended to create the shape. o Merge Surfaces – The surfaces created or offset can be merged to

form an intersecting quilt, defining the inside surfaces of the desired shell.

o Solidify – The quilt will then be solidified to get the desired geometry.

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Analyzing Surfaces for OffsettingOffsetting of a surface depends on the minimum radius on the surface and its topology.

Radius – This check is necessary to see whether the surface will sustain offset. The surface will offset only when the offset value is less than the minimum radius value on a surface. The same can also be seen in the initial preview of geometry created in Pro/ENGINEER. The minimum on both sides inside and outside of the surface is displayed as values in this analysis.

Offset – This analysis can be useful in troubleshooting features such as Offset Surface, Thicken, or Shell, when problems arise due to intersecting surfaces. The problem may lie with some of the surface patches, which may have lesser minimum radius value or might twist and self-intersect. It may also happen that, while offsetting, some surfaces may completely be eaten up by the other surfaces. This tool can be used to check the topology of the offset geometry at the desired offset value.

The figures in the slide show a self-intersecting surface at a higher offset value.

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Transforming Surfaces Translate/Rotating Surfaces – You can use Copy and Paste Special with

the Translate/Rotate option to translate or rotate selected surfaces/quilts. When you use this option, a new feature is created leaving the original quilt/surface intact in the model tree.

Mirroring Surfaces – You can use the Mirror tool to create a mirrored surface about a specified plane. When you use the Mirror tool, another feature is created leaving the original quilt/surface intact. By default, Pro/ENGINEER keeps the original surface but you have the option of creating only the mirrored feature.

Flipping Surface Normal – You can use the Flip Normal command to change the direction of the surface normal.

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Merging SurfacesYou can merge two adjacent or intersecting quilts. You must select the quilts for merging before using the Merge command.

Merging adjacent quilts – Use the Join option to merge two adjacent quilts, where the edges of one quilt are aligned with the edges of the other.

Merging intersecting quilts – Use the Intersect option to merge two quilts that intersect and keep the non-intersecting portions of the quilts. When you merge intersecting quilts, there can be up to four resulting quilts (shown in the figure).

Surface edge display – The adjacent edges of separate quilts are displayed in blue and merged quilts are displayed in magenta.

Using the Warp Tool Creating quick shape changes to a part can be cumbersome when it requires

changes at the feature level. You need to make changes to the basic curves when designing the surfaces.

You can use the warp feature to make quick and intuitive changes to a part at the concept stage. These changes can be parametrically driven to create design variations at a very early stage in the design process.

With the warp feature, you can alter the form and shape of curves, quilts, facets, and solids. This feature is parametric and records the history of warp operations applied to the model.

The warp feature is not available at the assembly level.

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Manipulating Entire Models using WarpUse Warp operations for transforming, scaling, rotating, stretching, tapering, bending, or twisting the geometry within Pro/ENGINEER at the part level.

Transform — Enables you to translate, rotate, and scale geometry. Stretch — Stretches the geometry along an axis. You can control the range

and shape of the stretch. Warp — Uses edges and corners of a marquee to change the shape of the

geometry. Various constraints and controls provide a wide range of shape changes.

Bend — Bends the geometry along an axis. You can control the bend angle, pivot point, and the bend radius.

Twist — Twists the geometry around an axis. You can control the angle of the twist and the range of the twisting effect.

Spine — Provides a method of creating curve-based deformations to parts and sets of surfaces from native geometry to imported IGES files. It is useful when making specific and highly complex deformations to a model.

Sculpt — Deforms a part or set of surfaces via a control mesh, greatly expanding the functionality within the warp feature. The control mesh for sculpted geometry can be located on any of the six faces of an imaginary bounding box that surrounds the area to be warped.

About the figures:

In the figures on the slide, the body of the shaver has been stretched using the Stretch Scale tool.

In the next figure, it has been bulged at the rear end using the Warp tool. The deformation can be done in any of the directions shown with arrows, either symmetrically or asymmetrically.

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In the next figure, the body has been bent using the Bend tool. In the last figure, the body has been twisted using the Twist tool. All the deformations applied using the warp feature can be localized to a

particular zone of the part. There are controls available inside each option to orient the operation on the model, localize it, and apply the operation using parametric dimensions.

Exercise 1: Manipulating Surfaces on the BottleObjectivesAfter successfully completing this exercise, you will know how to:

Extend surfaces with various options. Merge adjacent and intersecting surfaces.

ScenarioYou are continuing the design of the bottle. Several surfaces need to be merged, and the handle surfaces need to be extended to intersect the body of the model. You must merge the entire model into a single quilt in order to add a material thickness in a later exercise.

Task 1. Open the BOTTLE_ADDL_SURFS model.

1. In the Folder Browser , browse to the module_10 folder. 2. Right-click the module_10 folder and select Set Working Directory. 3. Open the BOTTLE_ADDL_SURFS.PRT.

4. If necessary, click Datum Planes , Datum Axes , Datum Points ,

and Datum Coordinate Systems from the main toolbar to disable their display.

Task 2. Merge the various surfaces that form the body of the bottle.

1. Click Shading from the main toolbar if necessary.

o Click No Hidden from the main toolbar. o Examine the model, noticing where the various quilt edges are located.

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Surface edges that appear in the darker magenta color are two-sided (merged) edges, while

the lighter pink edges are one-sided (unmerged edges).

Bottle in Shading and No Hidden

Depending on your graphics card, you can select View > Display Settings > Performance and

enable Fast HLR to view surfaces in a true No Hidden style.

2. Click Shading from the main toolbar. 3. Select Quilts as the selection filter option.

o Press CTRL, and select the two quilts shown in the following figure.o Click Edit > Merge from the main menu. o Click Complete Feature from the dashboard.

Selecting Surfaces

4. Press CTRL, and select the two quilts shown in the following figure.

o Click Edit > Merge from the main menu. o Click Complete Feature from the dashboard.

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Selecting Surfaces

Some of the editing options are also available in the feature toolbar.

5. Press CTRL, and select the two quilts shown in the following figure.

o Click Merge from the feature toolbar. o Click Complete Feature from the dashboard.

Selecting Surfaces

6. Click No Hidden from the main toolbar.o Examine the model, noticing where the quilt edge colors are different. o Note the decrease in one-sided (unmerged) edges. o Only the spout at the top, and the ends of the handle are now one-

sided edges.

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Bottle in No Hidden

7. Click Shading from the main toolbar.

Task 3. Extend the handle surfaces so they intersect the model.

1. Select Smart as the selection filter option.o Select the quilt forming the handle. o Zoom in and right-click to query the tangent chain of edges shown, and

then select it.

Selecting the Tangent

Chain

2. Click Edit > Extend from the main menu.

o Drag the offset handle leftward to 10.

o Click Extend Surface to Plane from the dashboard. o Select datum plane RIGHT from the model tree. o Click Complete Feature from the dashboard.

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Extending the Upper Handle

Surface

3. Select the quilt forming the handle.

o Zoom in and right-click to query the tangent chain of edges shown, and then select it.

Tangent Chain Selected

4. Click Edit > Extend from the main menu.

o Drag the offset handle downward to 25. o Select the Options tab from the dashboard, and change the

method from Same to Tangent. o Click Complete Feature from the dashboard.

Extending the Lower

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Handle Surface

Tangentially

Task 4. Merge the handle to the body of the model.

1. Select Quilts as the selection filter option.

o Press CTRL, and select the handle and then the main body

quilts shown in the following figure.

2. Click Merge from the feature toolbar.

o Click No Hidden from the main toolbar.

o Click each yellow arrow on the screen once to flip the side for each

quilt, as shown in the following figure.

o Click Complete Feature from the dashboard.

Changing Quilt Sides

Using No Hidden display to view the quilts that you need to merge enables you to

easily see the yellow preview highlighting, which displays the resulting merge

geometry.

3. Examine the surface quilts while still in No Hidden display.

o Notice that the only one-sided edges are at the spout of the bottle.

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Task 5. Create Rounds on the bottle surfaces.

1. Select Smart as the selection filter option.

2. Start the Round Tool from the feature toolbar.o Press CTRL and select the two edges shown in the following figure. o Drag the radius to 5 as shown.

First Round Set.

3. Right-click and select Add Set.

o Press CTRL and select the two edges shown in the following figure.o Drag the radius to 10 as shown. o Click Complete Feature .

Second Round Set

4. Start the Round Tool from the feature toolbar.o Press CTRL and select the two edges shown in the following figure. o Drag the radius to 8.

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Creating First Round Set

5. Select the edge, as shown in the following figure.

o Drag the radius to a value of 6. o Click Complete Feature from the dashboard.

Creating the Second Round

6. The model appears as shown.

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Surfacing Completed on Bottle

7. Click Save from the main toolbar and click OK. 8. Click File > Erase > Current > Yes.

This completes the exercise.

Exercise 2: Manipulating Surfaces on the ShaverObjectivesAfter successfully completing this exercise, you will know how to:

Merge surfaces using the Join option. Project curves. Trim surfaces using curves.

ScenarioYou continue to work on the Shaver components. You need to complete the BODY_MASTER model before you can transfer geometry to the component parts.

Task 1. Open the BODY_MASTER model.

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1. In the Folder Browser , browse to the module_10/shaver folder. 2. Right-click the shaver folder and select Set Working Directory. 3. Open the BODY_MASTER.PRT.

Shaver BODY_MASTER.PRT

Task 2. Hide the copy geometry surfaces and merge the body halves.

1. Press CTRL and select the two copy geometry surfaces shown in the following figure.

o Right-click and select Hide.

These two surfaces overlap components in the shaver and were used only to setup surface

tangencies. Including these surfaces in the quilt that you wish to thicken would cause

interference between the Shaver body and other components.

Selecting Surfaces to Hide

2. Press CTRL, and select the upper and lower halves of the model.

o Click Merge from the feature toolbar. o Click Complete Feature .

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Merging Surfaces

Task 3. Create curves projected onto the main surface, to be used for later trim operations.

1. Start the Sketch Tool from the feature toolbar.o Select datum plane FRONT from the model tree. o Click Sketch from the Sketch dialog box.

2. Sketch, as shown in the following figure.o Click Ellipse and sketch as shown. o Edit dimension values as shown. o Click Complete Sketch .

Creating a Sketch

3. Press CTRL + D to orient to the default orientation. 4. With the sketch still selected, click Edit > Project.

o Query to the entire quilt and select it. o Click Complete Feature from the dashboard.

Projected Sketch

5. Start the Sketch Tool from the feature toolbar, and select datum plane TOP from the model tree.

o Click Sketch from the Sketch dialog box.

6. Zoom in to the left side of the model.

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o Click Specify References . o Select the vertex on the left edge, as shown in the following figure. o Click Close from the References dialog box. o Click Line , and sketch a horizontal and a vertical line. o Select both lines, right-click and select Construction. o Edit the dimension value as shown.

Sketching Construction Lines

7. Continue sketching, as shown in the following figure.

o Click Conic Arc and sketch as shown. o Select the angled centerline, right-click and select Delete. o Create and edit dimensions as shown. o Click Complete Sketch .

Creating a Sketch

8. Press CTRL + D to orient to the default orientation. 9. With the conic sketch still selected, click Edit > Project.

o Query to the entire quilt and select it. o Click Complete Feature from the dashboard.

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Projected Sketch

Task 4. Create another projected curve to be used for a pattern of ribs.

1. Start the Sketch Tool from the feature toolbar. o Click Use Previous.

2. Zoom in to the right side of the model and sketch, as shown in the following figure.

o Click Spline , and sketch as shown. o Edit the dimension value as shown. o Click Complete Sketch .

The spline sketch is deliberately created so it extends beyond the model, enabling the

projected curve to reach all desired surfaces.

Sketching a Spline

3. Press CTRL + D to orient to the default orientation. 4. With the sketch still selected, click Edit > Project.

o Select the surface, as shown in the following figure. o Click Complete Feature from the dashboard.

Surface to Project

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Task 5. Create datum features used to construct a rib.

1. Start the Datum Plane Tool and select datum plane RIGHT from the model tree.

o Drag the offset handle leftward to a value of 10. o Click OK.

Creating a Datum Plane

2. Click Datum Points , from the main toolbar to enable their display.

3. Start the Datum Point Tool and select datum plane DTM3 if necessary.o Press CTRL and select the highlighted edge to create PNT9, as shown

in the following figure.

Creating Datum Point PNT9

4. Right-click and select New Point, then select the previous edge again.

o Click Reference as the offset type and select DTM3 from the model tree.

o Drag the offset handle to a value of 4 to create PNT10, as shown in the following figure.

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5. Right-click and select New Point, and select the Project 3 curve from the

model. o Click Reference as the offset type and select DTM3 from the model

tree. o Drag the offset handle to a value of 4 to create PNT11, as shown in the

following figure.


6. Right-click and select New Point, and select Project 3 curve from the model.

o Click Reference as the offset type and select DTM3 from the model tree.

o Drag the offset handle to a value of 8 to create PNT12, as shown in the following figure.

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7. Click OK to complete the feature.

Task 6. Create projected and sketched curves to form boundaries for the

rib.

1. Start the Sketch Tool from the feature toolbar.

o Click Use Previous.

2. Click Specify References .

o Select datum points PNT9, PNT10, PNT11, and PNT12.

o Click Close from the References dialog box.

3. Sketch, as shown in the following figure.

o Click Spline , and sketch two 2-point splines as shown.

o Create and edit dimensions as shown.

o Click Complete Sketch .

Sketching Splines

4. Press CTRL + D to orient to the default orientation.

5. With the sketch still selected, click Edit > Project.

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o Press CTRL and select the two surfaces shown in the following

figure.


Selecting Surfaces to Project

6. Start the Sketch Tool from the feature toolbar, and select datum

plane FRONT from the model tree.

o Click Sketch from the Sketch dialog box.

7. Click Specify References .

o Select datum points PNT9 and PNT10.

o Click Close from the References dialog box.

8. Sketch, as shown in the following figure.

o Click Conic Arc , and sketch as shown.

o Create and edit dimensions as shown.

o Click Complete Sketch .

Sketching a Conic Arc

9. Press CTRL + D to orient to the default orientation.

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Task 7. Create a Boundary Blend surface to form the rib.

1. Start the Boundary Blend Tool from the feature toolbar.o Press CTRL and select the two curves shown in the following figure.

Selecting Curves for First Direction

2. Right-click and select Second Direction Curves.

o Press CTRL and select the large projected curve and then the smaller arched curve, as shown in the following figure.

Selecting Curves for Second Direction

3. Select the Constraints tab.

o Set the boundary condition for Direction 2- First Chain to be Tangent. o Set the boundary condition for Direction 2- Last Chain to be Normal. o Click Complete Feature from the dashboard. o Notice that the created surface has a small horizontal patch across its

center. o This surface patch could cause problems later when you attempt

to thicken the quilt.

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Natural Fit

4. With the surface still selected, right-click and select Edit Definition.

o Select the Control Points tab. o Set the Fit type to Piece to Piece. o Click Complete Feature from the dashboard. o Notice that the surface patch has been removed.

Piece to Piece Fit

Task 8. Group and pattern the features comprising the rib.

1. Select the features shown in the following figure from the model tree.

o Right-click and select Group.

o Right-click again and select Rename.

o Type RIB as the name.

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Creating the RIB Group

2. Select DTM3 and the Datum Point within the group, right-click and select

Hide.

3. Select the main body quilt.

o Click Edit > Trim.

o Select the edge on the left, as shown in the following figure.

o Press SHIFT and select all three edges as a one-by-one chain.

o Flip the arrow to the outside.

o Click Complete Feature .

Trimming Main Quilt in Rib Location

4. Select the trim feature from the bottom of the model tree, and drag it into

the bottom of the RIB group.

5. Select the Group RIB, right-click and select Pattern.

o Select the offset 10 dimension belonging to DTM3.

o Accept the default increment of 10.

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o Type 4 for the quantity in the first direction in the dashboard.


Rib Pattern

Task 9. Merge the ribs onto the main surface.


o Select the first rib quilt.

o Press CTRL and select the main body

o Click Merge from the feature toolbar.

o Select the Options tab and click Join.


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Merging the First Rib Quilt

Since the smaller rib quilt intersects the main body quilt in the center of the rib as well as the

edges, Join is the appropriate option in this case. You can also right-click and select Join

instead of selecting the Options tab.

2. Press CTRL and select the second rib quilt and then the main body.

o Right-click and select Merge from the feature toolbar.

o Right-click and select Join.


Merging Rib 2

3. Repeat the previous procedure to merge the third and fourth ribs, as

shown in the following figure.

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Merging Ribs 3 and 4

Task 10. Hide and unhide appropriate curves.

1. Select Smart as the selection filter option.

2. Expand each patterned group.

o Select the projected curve and sketch with each group, right-click

and select Hide.

Curves Hidden

3. Select the projected curve used for the rib endpoints (Project 3), right-

click and select Hide.

4. Select the PROJ_CURVE sketch, right-click and select Unhide.

PROJ_CURVE Displayed

5. Click View > Visibility > Save Status.

6. Click Save from the main toolbar and click OK.

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Task 11. Examine the assembly.

1. In the Folder Browser , click Working Directory .

o Select the SHAVER.ASM and click Open in Pro/E .

Shaver Assembly

2. Examine the ends of the surface model where the quilt meets other

components. Notice the flush mating of surfaces.

Shaver Assembly

Task 12. Copy the appropriate geometry to the BODY_UPPER.PRT.

1. Select BODY_UPPER.PRT from the model tree.

o Right-click and select Activate.

2. Click Insert > Shared Data > Copy Geometry from the main menu.

o Click Define By Collections in the dashboard.

o Query and select the entire quilt from the BODY_MASTER part.

3. Right-click and select Chains.

o Press CTRL, and then query and select each complete curve, as

shown in the following figure.

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Selecting Curves as References

4. Click Window > Activate to activate the top level assembly.

The previous procedure can be repeated to transfer geometry to the remaining

Shaver components.

Task 13.

Trim the BODY_UPPER quilt using the curves as trimming references.

1. Select the BODY_UPPER.PRT from the model tree.o Right-click and select Open.

BODY_UPPER.PRT


o Select the quilt.

3. Click Edit > Trim from the main menu.o Select the curve shown in the following figure. o Flip the yellow arrow upward. o Click Complete Feature from the dashboard.

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Trimming the Quilt

4. Select the quilt again, and click Edit > Trim.

o Select the curve shown in the following figure. o Flip the yellow arrow upward. o Click Complete Feature .

If the entire curve does not get selected you can do the following:

Press SHIFT and select the curve segment that is already highlighted again.

This will activate the one by one chain selection method.

Then press SHIFT and select the remaining curve segments.

Trimming the Quilt

5. Select the quilt again, and click Edit > Trim.

o Select a segment of the curve shown, then press SHIFT and select the entire tangent chain.

o Flip the yellow arrow so that the main quilt displays the preview mesh. o Click Complete Feature from the dashboard.

Trimming the Quilt

6. Click Show > Layer Tree.

o Select the 03_PRT_ALL_CURVES layer, right-click and select Hide. o Right-click and select Save Status.

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o Click Show > Model Tree.

7. The BODY_UPPER appears, as shown in the following figure.

BODY_UPPER Part

8. Save the model, close all windows, and erase all models from session.


Exercise 3: Offsetting Surfaces for the Power Switch (Challenge)ObjectivesAfter successfully completing this exercise, you will know how to:

Offset a surface using the various options available.

ScenarioYou are continuing work on the Shaver components. You need to detail the power switch using the provided surface. The part thickness has been previously determined, as well as other details that need to be added.

Task 1. Open the Power Switch model.

1. In the Folder Browser , click the module_10 folder to view its

contents.

2. Open the POWER_SWITCH.PRT.

3. If necessary, click Datum Planes , Datum Axes , Datum

Points , and Datum Coordinate Systems from the main toolbar

to disable their display.

4. Examine the existing surface, which you will use to create the switch.

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Outer Surface for Power

Switch

Task 2. Offset the surface toward the inside.

1. Select anywhere on the surface quilt.o Click Edit > Offset from the main menu. o Click the yellow arrow to flip the offset toward the inside. o Edit the offset value to 1.5 in the dashboard.

Offsetting the Surface

2. Click Preview Feature from the dashboard.

o Notice that the fillet surfaces have not been offset.

When the radius value of fillet surfaces is less than the offset value, the system removes the

fillet surfaces from the offset quilt automatically.

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Offset without Fillet Surfaces

3. Click Resume Feature from the dashboard.

o Select the Options tab and enable the Create Side Surface option. o Click Complete Feature .

This result does not meet our design intent, which is to offset the surfaces, but maintains the

fillet radius on the inside.

Offset Preview and

Completed Offset

Task 3. Redefine the offset, experimenting with various options.

1. Right-click on the Offset 1 feature from the model tree, and select Edit Definition.

o Select the Options tab and change the offset type from Normal to Surface to Automatic Fit.

o Click Preview Feature from the dashboard. o Notice the offset surface is scaled to fit inside the original surface.

Since the side surfaces become inclined, a different option should be used in this case.

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Auto Fit Option and SIDE

View

2. Click Resume Feature from the dashboard.

o Select the Options tab and change the offset type from Normal to Surface to Controlled Fit.

o Select CS1 from the model tree as the reference coordinate system. o Click Preview Feature from the dashboard. o Notice there is still some slope on the upper surfaces.

Controlled Fit Option and

SIDE View

3. Click Datum Coordinate Systems from the main toolbar to enable their display.

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4. Click Resume Feature .o Select the Options tab and clear the Y check box to prevent

translation in that direction. o Click Complete Feature .

5. Select coordinate system CS1, right-click and select Edit Definition. o Edit the Y offset from 0 to –8. o Click OK. o Notice the fillet surfaces are maintained, and the upper offset surfaces

are level with the original surface.

Final Results and SIDE View

6. Click Save from the main toolbar and click OK. 7. Click File > Erase > Current > Yes.


Exercise 4: Creating Design Variations of the Shaver (Challenge)ObjectivesAfter successfully completing this exercise, you will know how to:

Use basic warp feature operations to dynamically experiment with design variations.

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ScenarioYou are continuing work on the Shaver components. You wish to visualize the Shaver body by stretching, bending, and twisting its form for possible design variations.

Task 1. Open the BODY_MASTER_WARP.PRT model.

1. In the Folder Browser , click Working Directory .

2. Open the BODY_MASTER_WARP.PRT.

3. If necessary, click Datum Planes , Datum Axes , Datum

Points , and Datum Coordinate Systems from the main toolbar

to disable their display.

BODY_MASTER_WARP.PRT

Task 2. Use the Stretch tool within the warp feature to increase the length of the handle.

1. Click Insert > Warp from the main menu.o Select anywhere on the model. o Right-click and select Direction Collector. o Select DEFAULT_CSYS from the model tree.

2. Click Stretch Tool from the dashboard.

o Click Next Axis , to position the marquee frame as shown.

Positioning Marquee Box

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3. Click Saved View List and select FRONT.o Drag the left end of the marquee as shown.

The warp operation will only be applied inside of the marquee box.


4. Select the References tab and clear the Hide Original check box.

o Drag the handle to the right to stretch the model. o Type 1.2 as the stretch value in the dashboard and then enable the

Scale check box.

Stretching the Model

Enabling the Stretch check box in the dashboard creates a model parameter which can be

easily modified to control the amount of stretch. Similar parameters exist for other elements

within the Stretch tool, as well as for other warp operation types.

5. Since you can create multiple warp operations within one warp feature, leave the dashboard open for now.

Task 3. Create a bend operation on the model.

1. Click Saved View List and select 3-D.

2. Click Bend Tool in the dashboard.

o Click Next Axis to reposition the marquee frame, as shown in

the following figure.

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3. Click Saved View List and select FRONT.

o Drag the ends of the marquee frame to position it, as shown in the

following figure.


4. Drag the green pivot handle in the center of the frame to its leftmost

position.

o Select the Options tab and verify a value of 0.0 for the Pivot value.

5. Drag the handle downward slowly to create the bend.

o Type -20 as the bend value in the dashboard and then enable

the Angle check box.

Bending the Model

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6. Continue with the dashboard open.

Task 4. Create a twist in the model.


2. Click Twist Tool from the dashboard.

o Click Next Axis , to position the marquee frame as shown.


3. Click Saved View List and select FRONT.

o Drag the ends of the marquee frame, as shown in the following

figure.



o Drag the handle slowly toward you.

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o Type 10 as the twist value in the dashboard and then enable the

Angle check box.

Twisting the Model

5. Select the List tab to view the Stretch, Bend, and Twist operations.


6. With the warp feature still selected, right-click and select Edit to view the

warp parameters.

You can edit the warp parameters as you would a dimension value and regenerate the model.

You can also use the parameters in relations or in a family table to create design variations.

Warp Parameters

7. Click Save from the main toolbar and click OK.

8. Click File > Erase > Current > Yes.


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SummaryAfter successfully completing this module, you should know how to:

Extend quilts.

Trim quilts.

Copy quilts.

Merge quilts.

Offset quilts.

Transform quilts.

Manipulate quilts or entire models using Warp.

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ProE Surfacing - Module 10

Documents

objectivesafter

positioning

datum coordinate

references

click insert

click file

selection

click working