#### Manually Bisecting the Calibration Sphere

When you use either the MAN (Manual) or MAN + DCC Motion option you will be required to manually bisect the qualification sphere. This is also necessary if you have moved the sphere or do not know the location of the sphere. The calibration procedure will prompt you when you need to move the machine.

PC-DMIS Message

To Manually Bisect the Sphere:

1. Leave the PC-DMIS Message open.

2. Switch to the Live View tab on the main Graphics Display Window.

3. Click the On/Off button. This turns on the laser. A flashing red arc appears in the graphic area of the Laser View tab and a green crosshair. The red arc is where the laser hits the calibration sphere.

4. Center the cross hair inside the circular region formed by the arc by moving the machine with the jog box. The red arc moves as you move the machine. If you imagine that the flashing arc indicates the edge of a circle, the center point of this imaginary circle should optically align with the center of the cross hair.

Aligning the arc

5. Once you have aligned the arc, click the On/Off button again. This turns off the laser.

6. Click OK on the PC-DMIS Message to accept the change you made of aligning the arc. PC-DMIS stays in Execute mode and the laser sensor moves through a series of defined positions used to calibrate your tip.

7. At each position the laser beam hits the sphere in a stripe and the laser sensor collects the data from that stripe. The collected data and the corresponding machine position determine the sensor’s mounting orientation on the machine.

8. Once execution finishes PC-DMIS returns to learn mode and shows the Probe Utilities dialog box.