eta/DYNAFORM provides two methods to create the addendum.  If checkbox of the By Segment option is toggled on, the user can create the addendum by multiple segments using different master profiles. If the checkbox is toggled off, the entire addendum will be created based on a single master profile.

After selecting a master profile, the user clicks on the Assign button to display the dialog box as illustrated in Figure 7.3.13.

Figure 7.3.13  Insert Addendum dialog box

Select one of the types, Outer, Inner or Corner addendum, and click on the Apply button to insert the addendum.

Note:   If there are multiple binders, the program will prompt the user to specify binder to be added addendum after clicking Apply.

OUTER ADDENDUM (toggle on OUTER)

If checkbox of the By Segments is toggled on, the Select Region button is enabled.  Click on the button to highlight the outer boundary of the part. The following message is printed in the message prompt window:

SELECT A NODE ON PART BOUNDARY AS STARTING POINT

After selecting a node on the part boundary, the following message is printed in the message prompt window:

SELECT A NODE ON PART BOUNDARY AS END POINT

After two nodes are selected on the outer boundary, click on the Apply button to create an addendum segment in the defined region.  Figure 7.3.14 illustrates a typical addendum segment.

If checkbox of the By Segment is toggled off, the Select Region button is disabled. The user clicks on the Apply button to create addendum around the entire outer boundary. Figure 7.3.15 illustrates a typical addendum around the entire out boundary of a part.

Figure 7.3.14  Create Addendum by Segment

Figure 7.3.15  Complete Addendum by Master Profile

INNER ADDENDUM (toggle on INNER)

The Select Region button is enabled if the Inner option is toggled on.

If checkbox of the By Segments is toggled on, the user clicks on the Select Region button to select two nodes on the same inner boundary.  The user clicks on the APPLY button to generate addendum segment in the selected region.

If checkbox of the By Segments is toggled off, the user clicks on the Select Region button to select a node on an inner boundary.

CORNER ADDENDUM (Toggle on CORNER)

This function is used to create addendum connecting a part with a flange and the neighboring addenda.  In this case, the flange may be part of the binder.  Refer to Figure 7.3.18 for illustration of a typical part with flange on the binder.

The steps listed below are used to create a corner addendum:

1.       Select Corner and Advanced, as shown in Figure 7.3.16. Advanced is used to create the PO Line for corner addendum. The user can use the Create Spline Line function in Advanced options to create a PO Line, as shown in Figure 7.3.19. About detailed descriptions for all the functions in Advanced, please refer to Section 5.2.11, Split Surface.

2.       Click the Select Profile button to select a profile on the addendum boundary. The selected profile will be highlighted as illustrated in Figure 7.3.20.

3.       Select two nodes on the part boundary as illustrated in Figure 7.3.21. Click on the Yes button to accept the defined corner region.

4.       As illustrated in Figure 7.3.16, Apply button is enabled. Clicking on Apply, the program will pop up a question dialog box for the user to determine whether boundary line should be selected as the PO Line for corner addendum, as shown in Figure 7.3.17. Click Yes to select the previously created PO Line. The program will auto generate the corner addendum, as shown in Figure 7.3.22.

Figure 7.3.16  Corner Addendum

Figure 7.3.17  eta/DYNAFORM Question dialog box

Figure 7.3.18  Flange on Binder Surface

Figure 7.3.19  Created PO Line

Figure 7.3.20  Select End Profile on Addendum

Figure 7.3.21  Select Two Nodes on Part Boundary

Figure 7.3.22  Generated Corner Addendum