solidmodeling blade

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XOR TutorialSolidModeling: Blade

July, 2007

1998-2008 INUS Technology, Inc. All rights reserved

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1998-2008 INUS Technology, Inc. Al l r ights reserved.

RapidformXOR User Guide & Tutorial

The content of this manual is furnished for informational use only, is subject to change without notice, and

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Rapidform XOR Basic Tutorial 2www.cadfamily.com EMail:[email protected]

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1. OverviewWelcome to the XOR Feature modeling wi th mesh Guide!Rapidform XOR is New reverse engineering sof tware to build parametric CAD modelsdirectly from 3D scan data with using the skills & UI that you are already familiar withthrough the experience of CAD systems.

This tutorial is intended for the user who needs to become quickly familiar with the RapidformXOR product. This tutorial has been designed to show you how to create a hybrid mesh fitsurface model.

Reflect Design IntentXOR helps the user to discover the original design concept & capture it.The result is an idealized model (the part in its pristine design condition; as it was intended tobe).

Copy the part exactly:Use the polygon mesh if possible, or fit NURBSsurfaces to the polygon mesh to make itreadable in some CAD & CAMsystems.Result is an almost exact copy of the part geometry, including the good and the bad.

SCAN data CAD data




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The deviation result between the features modeled part and the original mesh.

2. Data files

Blade_b.stl Raw Scan data of a blade.

Sample data for the following tutorial is provided by INUS Technology. They are theproperty of INUS Technology and are used for informational purposes only. Other than toidentify this software and publication, individuals or organizations purchasing the softwareare not entitled to use the sample data without INUS Technologys prior written consent.




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3. Summary

For this tutorial, we will follow the process in below.

1. Import Mesh data and Auto -Region Segment 2. Interactive Coordinate Alignment 3. Create Plane ,vector using Redesign Assis tant

(Intelligent design intent & parameter extraction) 4. Create 2 Mesh sketches 5. Create 2 Base Solid Bodies 6. Create Mesh fit surface and cut by surface 7. Trim surfaces and Boolean Solid 8. Create 4 sketch to Make blade surface 9. Create a blade Solid 10. Add Fillet and Accuracy Analyzer

4. Modeling Process

Step1: Region Segmentation

Click Insert > Importand open blade_b.stl at following location:~/INUS Techno logy/rapidformXO Redesign/Sample/SolidModeling.

Click the Region groupmode icon to enter Region Group Mode.

ClickAuto segment and then click the OKbutton with the default options as shown below.




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Auto Segment information will be displayed as follows.




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Step2:Interactive Coordinate Align

Click the Interactive Coordinate Alignmenticon in theAl ign Toolbar.The Interactive Alignmentdialog tree displays on the screen.

Select the blade mesh as the Moving Mesh.

Click the next stageicon to align the mesh to a global coordinate.It makes two separated view as shown below.The left view is Source and the right view is Reference.




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Select 3-2-1 MethodYou can align the mesh using the 3-2-1 method. You need to select each entity for Plane,

Vector andPosition. If you click the Flip button, you can reverse the direction of it. You canalso select Ref.Point, Ref.Coordinate, Ref.Vector, Ref.Plane, Poly-Vertex, Curve Point,Curve, Poly-Face, Region, Sketch, Vertex, Edgeor Face.

Click the Plane button and select the side region as shown below.

Click the Vector button and select the upper region as shown below.




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Click the Position button and select the bottom region as shown below.

Click theApply button. You can see that each perpendicular face aligns to the reference plane.




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Step3:Create a Plane and Vector us ing the Redesign Assistant

Click the Ref.plane icon to create a region fitting plane1.

Select the Extract method and select the region as shown below.




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Create a plane2by selecting 2 regions as shown below.

Create a plane3by selecting the region as shown below




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Create a Ref.vector1 to be used fo r extruding by intersecting plane5and plane6




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Step4:Create 2 mesh sketches

TheMesh Sketch command allows you to extract a polyline of a section or silhouette from amesh model and create 2D geometriessuch as a line, a circle, a rectangle, etc., based on thecreated section or silhouette. You can extract design intent and redesign the part.

Click the mesh sketch command and select plane1 as the base plane.Input 1mm as the offset distance from the base plane.

Tip: If the section polyline is not displayed, click the Flip directionicon .

You can adjust the resolution by moving the slide bar in the Segment Section Polyline.toolbar.




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Tip Resolution This operation determines the resolution of a polyline.are created.

lick the

The further left the cursor is moved, the fewer segments

C button on the Sketch toolbar, or click Tools >SketchEntities >Line.Fi

the 3D Model View.

Enable the t Polylineoption and select a polyline segment .

Repeat this step until you duplicate the sketch seen below.ClickAccept Fit ti ng or double-click the left mouse button on

lick the

C button on the Sketch toolbar, or clickTools >SketchTools > Fillet.t beAdd a fille tween lines to apply tangent constraints on them.




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Select theAccuracy Analyzer .button and input the tolerance values as shown below.Check the Deviation radio check

A deviation that is displayed by the color green indicates that the sketch curve is within anallowable tolerance to the polyline.

he final Sketch1is as shown below.T




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Click the Mesh Sketchcommand and select the plane3as the base plane.Input 1mm as the offset distance from the base plane.




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Click the button on the Sketch toolbar, or click Tools >SketchEntities >Line.

Click the button on the Sketch toolbar, or click Tools >SketchEntities >Centerpoint Arc.Enable the Fit Polylineoption and select a polyline segment.Draw an arc and a line sketch entity. Repeat these steps until your sketch matches the oneshown below.

Click the button on the Sketch toolbar, or clickTools >SketchTools > Fillet.Add fillets between lines to apply tangent constraints on them.




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The final Sketch2is as shown below.

Step5:Create 2 Base sol ids

Click the button on the toolbar, or click Insert > Solid > Extrude.Select the Base Sketch as the sketch1. Select Up to Surfaceas the extrusion method andselect the Plane2.

TIP: If the solid is not displayed, click the Flip button to change extrusion direction.




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Extrude1is created




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Click the button on the toolbar, or click Insert > Solid > Extrude.Select the Base Sketch as sketch1. Select Up to Surfaceas the extrusion method and selectthe Plane4.Select the Ref.vector1 asCustom direction.

NOTICE Dont check cu tor mergein Result Operatoroption.

Extrude2is created




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Step6:Create a Mesh Fit Surface

1. Create 4 upper Mesh Fitsurfaces and cut the solid by those surfaces.

Click the Mesh Fit Surface icon or select Click Insert > Surface > Mesh Fit.

Select the yellow color region as shown below.(The region color may differ from this tutorial)Click OKwith the default options as shown below . Input 0% as V.extend ratio in theExtend option dialog tree.Meshfit surface1is created.

Select the blue color region as shown below. (The region color may differ from this tutorial)Click OKwith the default options as shown below. Meshfit surface2is created.




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Select the violet color region as shown below. (The region color may differ from this tutorial)SelectBy no. of control point method in the Resolution SelectionBox.Input 5 by 5 as U,V controlpoint. Input 55% as the U.Extend ratioand 70% as the V.Extendratio.In the Extend option, Select the Curvature Extend method.Click OKwith the options shown below.Meshfit surface3is created.




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Select the blue color region as shown below. (The region color may differ from this tutorial)Click OKwith the default options as shown below. Meshfit surface4is created.




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Extend Mesh Fitsurfaces 1, 2, and 4 so that they fully intersect with one another.

Click the button on the toolbar, or click Insert > Surface > Extend.Select the Mesh Fit Surface2.Select Curvatureas the Extension Methodand Input 4mm as the distance.Repeat this step for Mesh Surface4.

Select the edge of meshfit Surface1 as shown belowSelect Curvatureas the Extension Methodand input 6mm as the distance




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Cut the Extrude1by the Mesh Fit1surface.

Click the button on the toolbar, or click Insert > Solid > Cut.Select Mesh Fit1 as the Tool Entitiesand Extrude1 as the Target Bodies.

Click the Next stage icon .Select the Remaining body as shown below.Cut1is created.




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2. Create 4 lower Meshit surfaces and cut the solid by the surfaces.

Click the Mesh Fit Surface icon or select Insert > Surface > Mesh Fit.Select the yellow color region as shown below.(The region color may differ from this tutorial)

Click OKwith the default options as shown below. Input 0% as V.extend ratioin theExtendoption dialog tree.Mesh Fit surface5is created.




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Select 3 color regions as shown below. (The region color may differ from this tutorial)Click OKwith the default option as shown below. Mesh Fit surface6is created.

Select the green color regions as shown below. (The region color may differ from this tutorial)Click OKwith the default options as shown below.Mesh Fit surface7is created.




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Select the orange color region as shown below. (The region may differ from this tutorial)Click OKwith the default options as shown below.Meshfit surface7is created.

Extend the Mesh Fit sur face5, 6, 7, and 8to fully intersect one another.

Click the button on the toolbar, or click Insert > Surface > Extend.Select the edges of the Mesh Fit Surface6as show below.

Select Curvature as the extension Method and input 3.5mm as the distance.

Select the edges of Meshfit Surface7as show below.




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Select Curvatureas the Extension Methodand input 4.5mm as the distance.

Select the edges of Meshfit Surface8as show below.

Select Curvatureas the Extension Methodand input 4.5mm as distance.

Select the edges of Meshfit Surface5as show below.Select Curvatureas the Extension Methodand input 8mm as the distance.




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Cut Extrude1by the Mesh Fit5surface.

Click the button on the toolbar, or click Insert > Solid > Cut.Select Meshfit5as the Tool Entitiesand Extrude1as the Target Bodiesas shown below.




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Click the Next Stageicon.Select the Remaining body as shown below.Cut2is created.

Offset a surface from Extrude2 as shown below.

Cut the Cut2solid by the surface offset1.




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Step7:Trim surfaces

Click the Show icon of mesh fit 1, 2, 3, and 4 in the model tree to show them.

Click the button on the toolbar, or click Insert > Surface > Trim.Select all surfaces as Toolbody and all surfaces as Target body.Click the Next stage icon.Select the remaining bodies as shown below.

Tip: You can select all surface Bodies by using the Right Mouse Button menu.




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Trim1 is created.




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Click the Show icon of meshfit 5, 6, 7, and 8 in the model tree to show those surfaces.

Click the button on the toolbar, or click Insert > Surface > Trim.Select all surfaces as the Tool Bodyand all surfaces as the Target Body.Click the Next stage icon.Select the remaining bodies as shown below.




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Trim2 is created.

Cutextrude2 bytrim1.

Cutextrude2 bytrim2. Cut5 is created.




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Boolean two cut bodies (Cut3&Cut5). Cut5 is created.




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Step8:Create 5 sketches to Make a blade surface

Click the Ref.plane icon to create region fitting plane7.

Select Extract method and select the region as shown below.

Click the mesh sketch command and select plane7as the base plane.Input 2mm as the offset distance from the base plane.




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Final sketch3looks like this.

Create an offset plane8 -19mm from plane7.Create a Mesh sketch4as shown below.




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Create an offset plane9 -42mm from plane7.Create a Mesh sketch5 as shown below.

Create an offset plane10 -46mm from plane7.Create a sketch6 and click theConvert entity icon.Select all curves in Sketch5and click OK.The final sketch6 should look like the one below.




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Finally, 4 Sketches are created to create a lofted surface.

Step9: Create a blade Solid

Create a Loft surface.

Click the button on the toolbar, or click Insert > Surface > Loft.Select Sketch 3, 4, 5, and 6.




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Create a Fill surface.

Click the button on the toolbar, or click Insert > Surface > Fill Face.

Select the edges of the Lofted surface and clickOK.




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Click the button on the toolbar, or click Insert > Surface > Offset.Select the surface ofSolid Cut5. Insert 0.0 mm as the Offset distance.




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Click the Trim & Merge icon on the toolbar, or click Insert > Surface > Trim & Merge.Select the Fillface1and the offset su rface,and click OK.

A solid is created as shown below.




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Boolean the solid body.

Create a Plane8using Extractas the Method.




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Select the Plane8and create a Mesh Sketch7 with a distance of 0.5mm.




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Select Sketch7.Create an Extruded feature using Through All as the Method the Cut option under Result

Operatorselected.

The result is as follows.




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Step10:Add Fil lets and Analyze Deviations

Click the button on the Default toolbar, or click Insert > Modeling Feature > Fillet. Click to

calculate the radius of an entity est. XOR automatically extracts the radius of a fillet from amesh model and is useful when modeling with a reference mesh model.Input 2.5 mm as the Radius and click OK.

Variable Radius Fil letYou can create variable radius fillets by specifying a different radius for each vertex of the edgesyou want to fillet. If you check this method, you can see the Profile View in the consol window.You can add a control point by clicking specific location on the yellow line and set radius by




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dragging the blue point or clicking the value to specify a value. If you want to remove the controlpoint, move the point that you want to remove to another point and overlap it.

Variable Radius Fillet edges as shown below.

Click to calculate the radius on the Mesh Data automatically.

Deviation Analysis using the Accuracy Analyzer.




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The Accuracy Analyzer is useful tool for identifying the accuracy of the created entitiesagainst the scan data of the part. You can check curvature, deviation, or environmentmapping using the Accuracy Analyzer.

Now select the Deviationoption to view the deviation between the created surface and actualscan data of the part. If Color Mapis selected as the Deviation Type,the result is displayed by

the color map the user defines. If Vectoris selected as the Deviation Type, the deviations aredisplayed as vectors.

The result of the final solid looks as follows. (minor features have been omitted)




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solidmodeling blade

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