Tolerances

The Tolerances function allows you to attach tolerances to internal or external cylindrical faces (holes and shafts).

Access

• In the Solids tab, click the icon in the Attributes section of the ribbon.
• Type Tol in the Quick Search field and select Tolerances from the result list.

This opens the Tolerances - Options tab which is displayed along with the ribbon containing the Environments, Options (Combined and Elements environment), Options (Faces environment), Filters, and Selection sections.

Procedure

In the following steps, confirmation by Right Mouse click may be required if Multi-select is active in the Selection options.

1. Select one or several solids containing cylindrical surfaces.

After validation, the Tolerance Definition dialog box is displayed. See dialog box.



The table displays assigned tolerances which are stored in the Features.cfg file.

2. Select the required row (multiple selection is possible) and then click the icon to define the tolerances in the Tolerances dialog box.
3. Click the icon to confirm your values and close the tolerances table.

Note:

If the Combined option is active in Environments section of the ribbon, you may also directly select internal or external cylindrical faces. In this case, instead of the table, the Tolerances dialog box is displayed allowing you to directly enter the required values.

Toolbar Options

The following options are available in the table toolbar:

	Click this icon to apply the current tolerances and close the table.
	Click this icon to cancel the function.
	Click this icon to refresh the list if the selection in the graphic area has changed.
	Click this icon and then click on a cylindrical face in the graphic area to highlight the corresponding row. Alternatively, selecting rows in the table highlights the corresponding cylindrical faces in the graphic area.
	Click this icon to display the Tolerances dialog box allowing you to enter the required tolerances (see below).
	Click this icon to save your settings as default values.
	Click this icon to select or deselect all the rows in the table.

Entering Tolerances

The following dialog box allows you to enter tolerances:

• Use the icon to clear the currently displayed values.
• Use the icon to save the current values as default.

The following parameters are available:

Diameter Section

Sup. tolerance	Enter the superior diameter tolerance in this field.
Inf. tolerance	Enter the inferior diameter tolerance in this field.
Standard tolerances	This drop-down list allows you to select from a number of standard tolerances. If a standard tolerance is active, the tolerance input fields are disabled. These tolerances are defined in the TOLLS.MM file. Note: If standard tolerances were assigned and the holes or shafts are modified using the Edit Cylindrical Faces function, for example, and you run the Tolerances function on the corresponding model, the tolerance values are correctly updated.
Custom tolerances	This drop-down list allows you to select from a number of custom tolerances. These tolerances are defined in the ToleranceDiam.cfg file that the user can customise with values to their specific requirements.
Reset diameter tolerance	Select this option to reset the diameter tolerance for the selected row(s).

Depth Section

The options in this section are not available for through holes.

Sup. tolerance	Enter the superior depth tolerance in this field.
Inf. tolerance	Enter the inferior depth tolerance in this field.
Reset depth tolerance	Select this option to reset the depth tolerance for the selected row(s).

Table Functions

A Right Mouse click in the fields of the table displays a context menu allowing you to apply a number of filters, to sort the displayed values and to reset tolerances. Once a filter is applied to a field, the corresponding column is highlighted in light blue. You may apply further filters on other values.

Filter Options

Set filter equal to...	Select this option after having selected the row containing the reference value to display all rows with the same value.
Set filter less than...	Select this option after having selected the row containing the reference value to display all rows whose value is smaller than the reference value.
Set filter less or equal than...	Select this option after having selected the row containing the reference value to display all rows whose value is smaller than or equal to the reference value.
Set filter greater than...	Select this option after having selected the row containing the reference value to display all rows whose value is greater than the reference value.
Set filter greater or equal than...	Select this option after having selected the row containing the reference value to display all rows whose value is greater than or equal to the reference value.
Reset filters	Select this option to reset the filter corresponding to the selected value type.
No filters	Select this option to cancel all the filters. This option is also available in the context menu displayed by a Right Mouse click on a column header.

Sorting Options

The following options are also available in the context menu displayed by a Right Mouse click on a column header:

Sort ascending	Select this option to sort the contents of the corresponding column in ascending order.
Sort descending	Select this option to sort the contents of the corresponding column in descending order.

Reset Options

The following options are also available in the context menu displayed by a Right Mouse click on a column header:

Reset tolerances	Select this option to reset all the tolerances of the selected row(s).
Reset diameter tolerance	Select this option to reset the diameter tolerances of the selected row(s).
Reset depth tolerances	Select this option to reset the depth tolerances of the selected row(s).