## Step 8: Measure the Master Flank

This step is only needed when working with bevel gears. If you did not provide a Master Flank file during the "Step 6: Define Gear Parameters", you will need to measure the Master Flank to create a Master Flank file. Otherwise, you can skip to the next step and "Measure a Gear".

To measure the Master Flank:

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

... to open the Gear Measurement Setup dialog box. This dialog box is the same dialog box that is used in "Step 9: Measure a Gear" except for the additional MasterFlank Setting button, which allows you to set Master Flank parameters.

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

3. Click to edit the Master Flank data. See the "Defining Master Flank Data" topic. Edit the values of the Master Flank Parameters dialog box as needed.

4. Click OK to save any changes that you have made, or Cancel 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.

A - Gear
B - Left
C - Right

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. You will be prompted to start measurement.

Information Are you ready to start measurement?

9. Click Yes to start and No to cancel. PC-DMIS will run your part program automatically.

Step 9: Measure a Gear...