Abstract： ASME Y14.41:2012 pdf download.Digital Product Definition Data Practices. (2) Cylindrical Surface. The size dimension and leader shall be placed on an annotation plane perpendicular to the feature axis or containing the feature axis. (3) Set...

ASME Y14.41:2012 pdf download.Digital Product Definition Data Practices.

(2) Cylindrical Surface. The size dimension and

leader shall be placed on an annotation plane perpendicular to the feature axis or containing the feature axis.

(3) Set of Two Opposed, Parallel Surfaces (a Width).

The size dimension, dimension line, and extension lines shall be placed on an annotation plane perpendicular to or containing the

feature centerplane. The extension lines shall clearly indicate the surfaces comprising the width. See Fig. 9-2 for examples.

(C) Useof the Term TRUE. The term TRUE, when used with a dimension, shall not be used on models.

9.3 DRAWING GRAPHIC SHEET REQUIREMENTS

Basic dimensions not displayed on a drawing graphic sheet shall be obtained by querying of the model.

9.3.1 Presentation of Dimensions in Axonometric Views

Requirements for dimensions on axonometric views of a drawing graphic sheet are defined in the following paragraphs.

(a) Displayed Dimensions. Dimensions shown in an axonometric view shall be true, and the use of the term TRUE is not required.

(b) Displayed Basic Dimensions. Basic dimensions shall be enclosed in a box in accordance with ASME Y14.5.

(c) Dimension Leader Lines. leader lines shall be used to relate a dimension to a cylindrical feature. The leader line shall be

directed to the intersection of the cylindrical feature and a surface. Leader lines shall terminate with an arrowhead.

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