Creating a Geometrical Tolerance

This task shows you how to create a geometrical tolerance (annotation).
You can also copy an existing geometric tolerance. You can set text properties either before or after you create the text.

	Creating a geometrical tolerance
	Leader orientation
	Geometrical tolerance orientation

Creating a Geometrical Tolerance

Open the Brackets_views03.CATDrawing document.

1. Click the Geometric Tolerance icon

from the Dimensioning toolbar (Tolerancing subtoolbar).

2. Select an element (geometry, dimension, text or point) or click in the free space to position the anchor point of the geometrical tolerance.

If you select an element, the anchor point will be an arrow. Note that you can modify this symbol by editing the annotation leader.

If you select a point in the free space, the anchor point will be a small balloon.

manipulatinggeometricaltolerance02.gif (2484 bytes)

If you select a dimension or a text, no leader will be created. The geometric tolerance will be displayed just below the element you selected.

manipulatinggeometricaltolerance03.gif (4376 bytes)

3. Move the cursor to position the geometrical tolerance and then click at the chosen location. The Geometrical Tolerance dialog box appears.

At this step, you can apply the parameter values of an existing geometric tolerance to the tolerance you are creating: to do this, simply select the existing geometric tolerance.

4. Select the Filter Symbol option to filter the available tolerance symbols according to the type of geometrical element you selected (if any).

If you did not select any geometrical element, the tolerance symbols will not filtered.

5. Specify the tolerance type by clicking the Tolerance Symbol button and selecting the appropriate symbol.

6. Type the tolerance value in the Tolerance value field, adding symbols as needed. To do this, position the cursor at the proper location in the field, and click the Insert Symbol button to choose the appropriate symbol.

You can add symbols to the tolerance and reference value as well as to the upper and lower text.

7. Type the reference values in the Reference value fields, adding symbols as needed.

8. To add a new geometrical tolerance, click the Next line arrow button and repeat steps 4 to 5.

9. Type the upper and lower texts in the appropriate fields. You may also add symbols if you want to.

The geometric tolerance is updated as you define values for each field.

10. Click OK when you're done. The geometrical tolerance is created.

11. You can add an all-around symbol to the leader. To do this, select the geometrical tolerance, right-click the yellow manipulator on the arrow and select All Around from the contextual menu.

Leader orientation

The leader first segment can be perpendicular to the element associated with the leader. For this, you can:

	either go to `Tools -> Options-> Drafting ->` A tab and check `Geometrical tolerance` in `Annotation Creation -> Apply snapping to.`
	or if this option is not activated, hold the `shift` key before clicking in the drawing to position the tolerance (previous scenario, step 3).

Geometrical tolerance orientation

The tolerance can be vertical. For this, hold the ctrl key before clicking in the drawing to position the tolerance (previous scenario, step 3).