CATIA Training COPYRIGHT DASSAULT SYSTEMES 2002 Version 5 Release 8 February 2002 EDU-CAT-E-FSS-FS- V5R8 F F r r e e e e S S t t y y l l e e S S h h a a p p e e r r , , O O p p t t i i m m i i z z e e r r & & P P r r o o f f i i l l e e r r D D e e t t a a i i l l e e d d S S t t e e p p s s
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CATIA Training
COPYRIGHT DASSAULT SYSTEMES 2002 Version 5 Release 8 February 2002 EDU-CAT-E-FSS-FS-V5R8
Table of Contents Master exercise 1: Hairdryer, surface based approach ................................................................................3
Step 1: Creating the Body of the hairdryer ................................................................................................3 Step 2: Creating the handle of the hairdryer .............................................................................................7 Step 3: Blending the body and the handle ..............................................................................................12 Step 4: Global deformation, offset, symmetry .........................................................................................17
a. Select the Control points icon. b. Select the patch. c. Modify the shape to give the expected top view of the model using Translation in Plane and
Linear Law.
d. Then change the view and modify the shape in the Z direction using Translation along the Direction and Linear Law. You can increase the order of the patch to 6x6 using the order display option in the FreeStyle Dashboard.
e. Project the sides to the XY plane if necessary (if your modifications have taken some side
control points out of the XY plane): bring the compass to the XY plane, select a side line and click the Project button in the dialog box. Repeat the operation for the opposite side.
f. Click OK in the dialog box to create the surface.
3. Create extrusion surfaces to define vertical tangency constraints.
a. Select the Extrude icon. b. Select the first edge of the surface. c. Drag the green handle to a correct position, for example as shown.
d. Click OK in the dialog box. e. Repeat the operation for the opposite side.
b. Click on the Planar Patch icon. c. Create a planar patch as shown in plane XY.
2. Modify the shape of the patch first in XY plane, then in Z direction (as done before for the body).
a. Select the Control Points icon. b. Move control points in XY plane using Translation in a Plane and Linear Law. c. Move control points in Z direction using Translation along a direction and Linear Law.
5. Modify the extracted surfaces to give them the desired shape.
a. Select the Control Points icon. b. Select the first surface to modify. c. Move control points while preserving the vertical tangency. A possibility is to select only the
first 2 rows of control points and move them in the X direction so that the first segments remain vertical.
d. Click OK in the dialog box. e. Repeat the same operation for the other three extracted surfaces.
a. Select the FreeStyle Blend Surface icon. b. Select the edges of the first two surfaces to connect.
c. Use the appropriate dashboard options to display the continuities and the tensions.
d. Choose a curvature continuity e. Move the tension cursors to define the shape f. Click OK to create the surface. g. Repeat the operation for the other blend surfaces.
b. Choose type Point by Point and mode With control points. c. Select the surface of the body. d. Select five points as shown, move them if necessary to get a nice shape.
e. Use Stretch View to zoom on the first segment.
f. Make sure it is strictly vertical (move the upper point I fit is not). g. Click OK to create the curve.
a. Select the FreeStyle Blend curves icon. b. Select the first couple of curves to connect. c. Use the appropriate dashboard options to display the continuities and the tensions. d. Choose a curvature continuity on the body side and a point continuity on the handle side. e. Move the tension cursors if necessary to define the shape of the connecting curve.
f. Click OK in the dialog box. g. Repeat the operation for the other side.
4. Create extrusion surfaces to define vertical tangency constraints. a. Select the Extrude icon. b. Select the first connecting curve. c. Use the green handle to define the extrusion side and length. d. Click OK in the dialog box. e. Repeat the operation on the other side.
a. Hide the curve on the body and the two connecting curves (in order to be able to pick the underlying surface edges).
b. Select the Fill icon. c. Select the 4 sides of the area to fill. d. Display the continuities and choose a tangent continuity on the body and the extrusion
surface, but a simple point tangency with the handle.
b. Select the Global Deformation icon. c. Set the privileged plane to XZ. d. Click Run to continue.
e. Select control points and lines and move them to modify the global shape of the part. Be careful to preserve the tangencies that are necessary for the symmetry.
f. Click OK to confirm the modification or CANCEL to return to the original surface.
b. Select the Cutting Planes icon. c. Use F5 to set the plane direction to X. d. Translate and rotate the compass to check the evolution of the planar sections on the model. e. Increate the number of planes. f. Activate the density option, enter density=5mm