Tolerances in Configurations

Manual Method

In the Dimension PropertyManager, when you specify a tolerance, you can assign it to This configuration, All configurations, or Specify configurations.

Design Table

In a design table, you can control tolerances as follows:
  • In a part document, you can control the tolerances on dimensions in sketches and in feature definitions.
  • In an assembly document, you can control the tolerances on dimensions that belong to assembly features. This includes mates (angle or distance), assembly feature cuts and holes, and component pattern spacing. You cannot control the tolerances on dimensions of a component contained in the assembly.

The column header in a design table for controlling tolerances uses this syntax:

$TOLERANCE@Dimension

For example, the tolerance on the depth of an extrude feature is $TOLERANCE@D1@Extrude1; the tolerance on a distance mate is $TOLERANCE@D1@Distance1.

The column header is not case sensitive.

In the table body cells, type the value for the tolerance, using a valid keyword and syntax. If a cell is left blank, the dimension has no tolerance. For a derived configuration, if a cell is left blank, the component uses the tolerance value of its parent.

When you specify values, be sure to use the system of units specified for the model in Tools > Options > Document Properties > Units.

Example of a design table that controls a tolerance, including the precision of the tolerance (highlighted in yellow):

Tolerance Keywords and Syntax in Design Tables

When entering values for tolerances in a design table, use the following keywords, in the syntax shown.

NONE
BASIC
MIN
MAX
BILATERAL;max_variation;min_variation
LIMIT;max_variation;min_variation
SYMMETRIC;max_variation
FIT;class;hole_fit;shaft_fit;type_fit;max_variation;min_variation
FIT_WITH_TOLERANCE;class;hole_fit;shaft_fit;type;max_variation;min_variation
FIT_TOLERANCE_ONLY;class;hole_fit;shaft_fit;type;max_variation;min_variation
tol_precision

where:

max_variation is the positive tolerance.
min_variation is the negative tolerance.
class is the general classification. Valid values: USER_DEFINED, CLEARANCE, TRANSITIONAL, PRESS.
hole_fit is the hole fit class. Examples: A9, H12, ZC11, and so on.
shaft_fit is the shaft fit class. Examples: a9, h12, zc11, and so on.
type is the type of fit. Valid values: HOLEFIT, SHAFTFIT.
Tol_precision specifies the number of decimal places for the tolerance value. Valid values: integers from 1 through 8 and NOM. Using NOM makes the value match the dimension precision, and is the same as selecting Same as nominal in the PropertyManager. To use the value specified in Document Properties, omit the parameter.

If a cell is left blank, the tolerance value is NONE.

For a derived configuration, if a cell is left blank, the component uses the tolerance value of its parent.