### Step 3: Calibrating the Rotary Table

To calibrate your rotary table:

1. Create a new empty PC-DMIS part program.

Important: If you are calibrating Dual or Stacked Rotary Tables you will need to select either Table W or the Table V before clicking Calibrate from the Rotary Table Setup dialog box. The physical axes for both of these tables should also be set to zero. You will need to complete all of the following steps for both tables.

2. Click the Calibrate button on the Rotary Table Setup dialog box. This opens the Calibrate Infinite Rotary Table dialog box

Calibrate Infinite Rotary Table dialog box

3. Specify the Probing parameters for the calibration process. Number of Hits that will be taken on the Qualification tool. The Prehit/Retract value will determine the distance from the hit location that the probe moves to before and after the hit is taken. The Move Speed value is a percentage of the maximum speed of the probe.

4. Select the Active Probe File and the Active Tip that will be used for calibration.

5. Click Add Tool to define a new the calibration tool or click Edit Tool to change an existing calibration tool. See the "Add Tool" topic in the core PC-DMIS documentation for more information. The location of the tool is at zero degrees on the rotary table in machine coordinates. The tool location is determined by the user, by jogging the probe close to the “top” of the probe, reading the counters and adding or subtracting the probe radius to one of the axes. The last step depends on the orientation of the probe with respect to the table.

6. To add a single Rotary Table angle, type the needed angle value above the Add Angle button and click Add Angle. This will add the specified angle to the Table Angles list.

7. To add multiple Rotary Table angles, type the needed Start Angle, End Angle and Increment values. Click Equally Space and new Rotary Table angles will be added to the Tables Angles list starting with the starting angle and incrementing up to the ending angle.

8. Click Calibrate. The commands that will be used to calibrate the rotary table will be written to the current part program. PC-DMIS will generate measurement paths for all the sphere positions.

Rotary Table Calibration Path Lines and Sphere locations.

9. Save the current part program so that it can be executed when the calibration is performed using CNC Server.

Rotary table calibration will begin immediately with the display of the Start Monitor dialog box. Start the Monitor program on the control and PC-DMIS NCI will command the necessary moves and measure commands to calibrate the table.

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