### Measure the Master Flank

If you did not provide a Gleason file during the "Define Geometry Parameters" step, you will need to measure the Master Flank to create a Gleason file. Otherwise, you can skip to the next step and "Measure a Gear".

To Measure the MasterFlank:

1. Select the Measure | Master Flank menu option...

... or the Create Master Flank toolbar icon...

... to open the Measure dialog box. By default, the MasterFlank Measurement Item is selected.

2. Make the needed changes to the values in the dialog box. See the "Editing Measurement Parameters" topic for more information on the available options.

3. Click Define to edit the Master Flank Data. See the "Defining Master Flank Data" topic.

4. Click Apply to save any changes that you have made, or Close to exit without saving your changes.

5. Click Measure to begin the Master Flank Measurement wizard. PC-DMIS launches in the background to execute each of the measurements.

6. Select the Active Tip that will be used to measure the specified hits. Follow the instructions and measure the specified hits to establish the Master Flank. The left and right flanks of a gear are defined as shown in the image below.

7. If you are not satisfied with a hit, click Del Pnt to remove the last hit.

8. When you have finished taking hits, click Measure. The software will create a program and take 5*9 points on each flank automatically.