A thread note is a text string that is attached to a Hole feature as a regular feature note. See more details about notes in About Model Notes in the links below.

Thread notes provide information about the standard hole features in the model. You can choose whether to create the thread note or not, when you create or edit the definition of a standard hole.

When the Hole tab is open, click the Note tab. Check the Add a note check box to create the thread note.

You can edit the thread note after the Hole feature is created:

Thread notes can include plain text, symbols and values from the Hole feature and the hole chart.

Examples:

To include values directly from the hole chart, use the name of the column from the chart, preceded by ampersand sign. In the example above:

These words are taken from the hole chart. USER_PARAM is an example of a user-defined column that does not appear in the system-provided hole charts.

To include values from the Hole feature or symbols, use tokens. In the examples above:

Additional examples are shown in the section Setting the Thread Note Format in the Hole Chart File.

The following table lists the tokens that display text or number values.

The following table lists tokens that are relevant when multiple holes are created, either by pattern or by sketched-placed hole. These tokens evaluate only when there are two holes or more, otherwise they are not shown in the thread note.

You can discard your changes and return to the predefined thread note format:

To reset the hole note format whenever you edit the definition of a hole, you can set the reset_hole_note_at_edit configuration option to yes.

You can set the thread note format for all the Hole features that are created with the same hole chart, for example, all UNC holes.

In your user-defined hole chart, use the CALLOUT_FORMAT field to set the thread note format. For information about creating a user-defined hole chart, see Hole Charts.

Since a hole chart is a plain text file, you cannot use graphic symbols in it. To add symbols to the thread note definition in the hole chart, use tokens that display as symbols.

The tokens you use depend on whether the symbol_font setting of the model is set to legacy, or to another symbol font.

If you add a character or symbol immediately after a hole note token, without a space between the token and the character or symbol, the token value might not be shown. To display the token value:

You can set a thread note format that is dependent upon the hole characteristics. Add a DEFAULT_CALLOUT_FORMAT_DATA table at the bottom of the hole chart file, below the THREAD_DATA table. Each row of the DEFAULT_CALLOUT_FORMAT_DATA table represents a combination of characteristics that a hole could have, and the note format that would be displayed for that combination.

The format is set by the first row that matches the hole definition. If no match is found, the thread note format will be set by the general CALLOUT_FORMAT field in the hole chart file. If this field is empty, the system default will be used. The columns HOLE_TYPE, THREAD, DRILLED_DEPTH, THREAD_DEPTH, CSINK, CBORE, EXIT_CSINK, and STRAIGHT_DRILLED_DEPTH (in tapered holes) are used for defining the typical combination.

The table must include all the columns. To set a thread note format that matches all the possible options of a characteristic, use the value NA (not applicable) in that column.

The possible values in each column are listed in the table:

For example, the following table will customize the thread notes of clearance holes:

The following tables list all the possible combinations, with additional examples of thread note formats.