5/13/2011

CATIA Freeform Surfaces–Part C

To create a 3D Spline Curve:-

? Click “Right VIew” icon

? Click “3D Curve” icon

? Draw a curve with 3 control points as shown

? Click ok to complete

To create a Curve on a Surface:-

? Click “Curve on Surface” icon

? Click on “Surface 7”

? Draw a curve with 3 control points as shown

? Click ok to complete

? Similarly, draw another 2 Curves on the same surface as shown

To Cut a surface by curves:-

? Click “Break Surface or Curve” icon

? Select “Break Surfaces by Curves” as Type

? Select “Along Compass” as direction

? Select “Surface 7” as Cut

? Multi-Select the three curves (on surface) asCutting

? Deselect “Tangential Extrapolation”

? Click Apply

? Click on the portion to remove

? Click ok to complete

Delete the three curves on surface

A- 65

To create an Extrude surface:-

? Click “Extrude” icon

? Select “3D Curve.12”

? Select “Normal to the curve” as direction

? Drag the double arrow on the preview surface to the left, up to ~15mm

? Click ok to complete

To create a Blend Surface:-

? Hide “3D Curve.12”

? Click “Freestyle Blend Surface” icon

? Select the two surface edges

? Disable “Project End points”

? Change the continuities as shown

? Drag the point closer to the point

? Click “Front View” icon

? Adjust the tension values to match the image

? Click ok to complete

Hide the Extrude surface,To make a Blend curve:-

? Click “Freestyle Blend Curve” icon

? Select the two surface edges

? Change the continuities as shown

? Adjust the tensions to match the image (Right View)

? Click ok to complete

http://www.cadfamily.com/html/Article/CATIA%20Freeform%20Surfaces–Part%20C_508_1.htm

http://www.cadfamily.com/html/Article/CATIA%20Freeform%20Surfaces–Part%20C_508_2.htm

http://www.cadfamily.com/html/Article/CATIA%20Freeform%20Surfaces–Part%20C_508_3.htm

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