2012

Sym
Displays the geometric characteristic symbol, which you select from the Symbol
dialog box
. The dialog box is displayed when you select one of the Sym boxes.
Tolerance 1
Creates the first tolerance value in the feature control frame. The tolerance
value indicates the amount by which the geometric characteristic can deviate
from a perfect form. You can insert a diameter symbol before the tolerance
value and a material condition symbol after it.
First Box
Inserts a diameter symbol in front of the tolerance value. Click the box to
insert the diameter symbol.
Second Box
Creates the tolerance value. Enter a value in the box.
Third Box
Displays the Material Condition dialog box, in which you select a modifying
symbol. These symbols act as modifiers to the geometric characteristic and
the tolerance value of features that can vary in size.
The symbol is inserted into the MC box for the first tolerance value in the
Geometric Tolerance dialog box.
Tolerance 2
Creates the second tolerance value in the feature control frame. Specify the
second tolerance value in the same way as the first.
Datum 1
Creates the primary datum reference in the feature control frame. The datum
reference can consist of a value and a modifying symbol. A datum is a
theoretically exact geometric reference used to establish the tolerance zone
for a feature.
1246 | Chapter 20 T Commands