Friday 25 November 2011

Editing a Hole Feature

After creating a hole, you may need to edit its parameters. The parameters that can be edited in NX include the diameters, depth, and the positioning values of the hole. To modify the parameters of a simple hole, double-click on it; the Edit Parameters dialog box will be displayed if the hole is created by the Pre-NX5 Hole tool, as shown in Figure 


Also, the parameters of the hole will be displayed on the model, as shown in Figure .

Note
In case, the hole is created by the Hole tool, the Hole dialog box will be redisplayed. In this dialog box, you can redefine the parameters of the hole.

Feature Dialog Button
To modify the parameters of the hole, choose the Feature Dialog button from the Edit Parameters dialog box; the Diameter, Depth, and Tip Angle edit boxes will be displayed. If the hole selected is a counterbore or a countersink hole, the counter related values will also be displayed. Enter the new values in the respective edit boxes and choose the OK button; the original options of the Edit Parameters dialog box will be restored. Choose the OK button from this dialog box; the changes made in the parameter values of the hole will be
reflected in the model. 
Reattach Button
To change the placement face of the hole, choose the Reattach button from the Edit Parameters dialog box; the Reattach dialog box will be displayed, as shown in Figure 

By default, the Specify Target Placement Face button is chosen from the Selection Steps area and you will be prompted to select the target face. Select a new placement face to reattach the hole. On doing so, the Redefine Positioning Dimensions button will be automatically chosen from the Selection Steps area of the Reattach dialog box. To retain the same positional values for the hole on the new placement face and create it, choose the OK button.
To specify new positional values for the hole, select the dimension to be modified; a dialog box will be displayed and it will be named based on the type of dimension used to place the hole. Also, you will be prompted to select the target object. Select an edge or datum to define the new reference for the dimension in the new placement face; you will be prompted to select the reference from the tool (hole). Select the bottom circular edge from the hole; the Select Arc Position dialog box will be displayed. To define the positional value between the selected edge/datum and the center point of the hole, choose the Arc Center button from the Select Arc Position dialog box. To define the positional value between the selected edge/ datum and any of the quadrant points of the hole, choose the End Point button. To define
the positional value between the selected edge/datum and the tangent point on the bottom edge of the hole, choose the Tangent Point button. After specifying the dimension, choosethe OK button from the Select Arc Position dialog box. Also, choose the OK button from the
Reattach dialog box; the changes will be reflected in the model.

Note
You can also delete the hole dimensions using the Reattach dialog box. To do so, choose the Delete Positioning Dimension button from the Reattach dialog box and then select the dimension to be deleted.

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