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Tolerances and ranges – Default tolerances |
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The assignment of default tolerance parameters for the model is carried out in the Value and state of tolerances by default dialog, which is invoked by the Setup — Options... command. — Current part/assembly — Dimensions — Tolerances and limit values — Default tolerances.
The dialog contains the following controls:
•Default dimension tolerances group of buttons. The buttons are used to fetch the Tolerance dialog in which the default value of the tolerance is set – either by setting the degree of accuracy or input of the maximum deviations. The setup is performed separately for each type of dimensions: linear, angular, diametrical, radial (for angular dimensions, only deviations are set). The customizable parameters relate to subgroup 2.1 (see section Types of object parameters).
Near each button, there is a field to view the current value of tolerance. The field is unavailable for manual editing; variants of the contents:
•number 10 with the degree of accuracy or deviations – dimensions of the given type will have the specified individual tolerance,
•empty field – neither the tolerance grade, no deviations are set; dimensions of this type will have a general tolerance.
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The field may contain only the number 10. That means that the tolerance is set by a degree of accuracy, but selected is such a number of a degree of accuracy for which the display in the dimensional caption is disabled. The number starting from which the tolerance grade is not added into the caption is set while setting up precisions of dimension texts (see section Precisions). |
•The group of options Assign tolerances to dimensions allows to select objects whose dimensions (parameters) are automatically assigned tolerances. Disabling the option means that the dimensions (parameters) of respective objects will not by default have a tolerance – neither general nor individual.
On completion of the set-up, press the OKbutton. Click Cancel to discard all changes and close the dialog box.
For more details on tolerances in a model, see section Tolerances.
