## Step 9: Measure a Gear

This step discusses the process to perform general gear measurement.

To measure a gear:

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

... or the Measure toolbar icon...

... to open the Gear Measurement Setup dialog box. The available values will vary depending on the type of gear that you are defining.

2. Make the needed changes to the values in the dialog box according to your gear type:

- Cylinder Gear: See "Editing Measurement Parameters for Cylinder Gears".

- Bevel Gear: See "Editing Measurement Parameters for Bevel Gears".

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

4. Click Measure to begin the gear measurement process. PC-DMIS launches in the background to execute each of the measurements. When PC-DMIS is ready to execute, it will provide a Yes/No message box asking if you are ready to start measurement.

5. Click Yes when ready. The gear part program opens in the instance of PC-DMIS running in the background and another Yes/No message box informs you that automatic operations are ready to begin. It then prompts you to move the probe to safe location above the gear.

6. Move the probe to a safe location and then click OK. The Execute dialog box appears.

7. Follow the instructions in the Execute dialog box and take two manual hits on each flank of one tooth. Click Erase Hit to remove the last hit if needed.

Note: Reference points (clocking points) can be taken in ANY order on the tooth or in the gap between the teeth, and it doesn’t matter if hits are taken clockwise or not.

6. Select the Active Tip and click Measure (or click Cancel to cancel gear measurement). PC-DMIS will create a part program and measure your gear automatically.

Step 10: Review Measured Data...