2012

Table Of Contents

Datum 3

Creates the tertiary datum reference in the feature control frame in the same

way as the primary datum reference.

Height

Creates a projected tolerance zone value in the feature control frame. A

projected tolerance zone controls the variation in height of the extended

portion of a fixed perpendicular part and refines the tolerance to that specified

by positional tolerances.

Projected Tolerance Zone

Inserts a projected tolerance zone symbol after the projected tolerance zone

value.

Datum Identifier

Creates a datum-identifying symbol consisting of a reference letter. A datum

is a theoretically exact geometric reference from which you can establish the

location and tolerance zones of other features. A point, line, plane, cylinder,

or other geometry can serve as a datum.

Symbol Dialog Box

Quick Reference