Machine design class standards
The Machine Design_Classes.sta file, located in the Standards folder, contains a number of pre-defined class standards.
To use the pre-defined classes in a drawing:
Select Tools > Organization.
The Organization dialog box opens. Click the Classes tab.
Click New.
The New Class dialog box opens.
Click Import Classes and choose Machine Design_Classes.sta from the list.
Select the desired classes.
Click the classes list on the Data bar to list the classes that are available for use in the drawing.