7/30/2010

CATIA V5 Fundamentals-Dress-up Features

http://www.cadfamily.com/downinfo/300406.html

Student Guide: Lesson 5- What is a Draft? (2/2)* The pulling direction defines the direction from which the draft angle is measured. It derives its name from the direction that the sides of a mold are pulled to extract a molding.* The draft angle is the angle that the draft faces make with the pulling direction from the neutral element. This angle may be defined for each face by creating separate draft features.* The neutral element is used to define the pivot hinge for the drafted surfaces. The drafted surfaces pivot about a neutral curve, the hinge, where it intersects the neutral element. The neutral element, usually a plane or face, can be the same reference used to define the pulling direction.The neutral element is displayed in blue, and the neutral curve is displayed in pink. The faces to be drafted are in dark red.The geometry that is selected as the Neutral Element remains the same during the draft operation (i.e. it is not affected by the draft).

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