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

## Creating an Auto Notch Slot

The Notch measurement option allows you to define a notch measurement. A notch is a three sided square slot. This measurement type is particularly useful when you do want to measure a series of lines and construct intersection and midpoints from them. Notches must be measured with four hits.

To access the Notch Slot option, access the Auto Feature dialog box for a Notch Slot (Insert | Feature | Auto | Notch).

Auto Feature dialog box - Notch Slot

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 a notch measurement using surface data:

1. Click the Surface Mode icon .

2. Using the animated probe, take five hits on the CAD surface in the same order as if using a CMM (see "Creating by Using Surface Data with the CMM" ).

3. Make any other modifications to the dialog box and the Probe Toolbox as needed.

4. Click Create.

Creating by Using Surface Data with the CMM

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.

To generate a notch measurement using surface data with the CMM:

1. Touch two times on the side opposite the opening of the notch using the probe. This will define a line along the edge.

2. Touch the part once on one parallel side of the notch and once on the other. This defines the length. The point is along the edge line, midway between the parallel sides.

3. Take one hit on the open edge. This defines the width of the notch.

4. Make any other modifications to the dialog box and the Probe Toolbox as needed.

5. Click Create.

Creating by Using Wire Frame Data on the Screen

Wire frame CAD data can also be used to generate a notch .

Using the animated probe:

1. Touch twice on the side opposite the opening of the notch using the probe. This will define a line along the edge.

2. Touch the part on one parallel side of the notch and then on the other side. This defines the length. The point is along the edge line, mid way between the parallel sides.

3. Take a single touch on the open edge. This defines the width of the notch.

4. Make any other modifications to the dialog box and the Probe Toolbox as needed.

5. Click Create.

Creating by Using Wire Frame Data with the CMM

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.

To generate a notch measurement using wire frame data with the CMM :

1. Touch twice on the side opposite the opening of the notch using the probe. This will define a line along the edge.

2. Touch the part on one parallel side of the notch and then on the other side. This defines the length. The point is along the edge line, mid way between the parallel sides.

3. Take a single touch on the open edge. This defines the width of the notch.

4. Make any other modifications to the dialog box and the Probe Toolbox as needed.

5. Click Create.

Creating without Using CAD Data

To generate a notch without the use of CAD data:

1. Find the top surface using three hits.

2. Touch twice on the side opposite the opening of the notch using the probe. This will define a line along the edge.

3. Touch the part on one parallel side of the notch and then on the other side. This defines the length. The point is along the edge line, mid way between the parallel sides.

4. Take a single touch on the open edge. This defines the width of the notch.

5. Make any other modifications to the dialog box and the Probe Toolbox as needed.

6. Click Create.

Creating by Keying in the Data

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

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.