Current Help System: PC-DMIS CMM (View Core Help)

## Creating an Auto Angle Point

The Angle Point measurement option allows you to define a point measurement that is the intersection of two measured lines. This measurement type allows you to measure the intersection of two lines without measuring the lines separately and constructing an intersection point. Six hits are needed to accurately measure an angle point.

To access the Angle Point option, access the Auto Feature dialog box for an Angle Point (Insert | Feature | Auto | Point | Angle).

Auto Feature dialog box - Angle Point

With the dialog box open, depending on your situation, use one of these methods to create the feature:

Creating by Using Surface Data on the Screen

To generate an angle point using surface data:

1. Click the Surface Mode icon .

2. Using the mouse, click once near (but not on) the angled edge in the Graphics Display window. PC-DMIS will highlight the selected surface.

3. Verify that the correct surface has been selected. The dialog box will display the value of the selected angle point and vector once the point has been indicated. The direction of the surface normal vector is determined by the side of the part that is accessible to the probe. If both sides of the part are equally accessible, the normal from the CAD data is used. The Flip Vector icon lets you change the direction of the approach.

4. Click Create to insert the feature into the part program. If additional mouse clicks are detected before you click the Create button, PC-DMIS will overwrite the previously displayed information with the new data. If an additional touch is necessary, click on the opposite surface of the angled edge.

Creating by Using Surface Data with the CMM

To generate an angle point using surface data with the CMM, touch once on each side of the angle edge. If the CAD angle point is not found, PC-DMIS will display the closest point and ask that additional hits be taken.

The Find Noms option should be selected from the Mode list for this measurement method. See the "Mode List" topic in the PC-DMIS Core documentation for additional information on nominals.

Creating by Using Wire Frame Data on the Screen

Wire frame CAD data also can be used to generate an angle point.

To generate the point:

1. Using the mouse, click once near (but not on) the angled edge. PC-DMIS will highlight the selected surface.

2. Verify that the correct surface has been selected. The dialog box will display the value of the selected angle point and vector once the point has been indicated. The direction of the surface normal vector is determined by the side of the part that is accessible to the probe. If both sides of the part are equally accessible, the normal from the CAD data is used. The Flip Vector icon lets you change the direction of the approach.

3. Click Create to insert the feature into the part program. Any additional mouse clicks prior to clicking the Create button will overwrite the previously displayed information with the new data. If an additional touch is necessary, click on the opposite surface of the angled edge.

Creating by Using Wire Frame Data with the CMM

To generate an angle point using wire frame data with the CMM, touch once on each side of the angle edge. If the CAD angle point is not found, PC-DMIS will display the closest point and ask that additional hits be taken.

The Find Noms option should be selected from the Mode list for this measurement method. See the "Mode List" topic in the PC-DMIS Core documentation for additional information on nominals.

Creating without Using CAD Data

If the angle point is to be generated without the use of CAD data, touch three times on each surface to find the two planes. The displayed angle point is at the first hit location.

Creating by Keying in the Data

This method allows you to key in the desired X, Y, Z, I, J, K values for the angle point.

1. Type in the desired X, Y, Z, I, J, K values for the feature into the dialog box.

2. Click Create to insert the feature into your part program.

See the "Mode List" topic in the PC-DMIS Core documentation for additional information on nominals.