#### Update Two Axes (Bore)

The Update Two Axes soft key can be used to measure a circle bore (internal circle feature) on the part and then use its center coordinates to update a specified work offset.

1. Select the Work offset soft key on the second page of the main screen.

2. Select the Update Two Axes (Bore) soft key. The Update Two Axes (Bore) screen appears.

Parameters Definition:

- Work Offset - Specifies the Work offset which is chosen to be update.

- Measured - Specifies the location of the Work Offset. The value is learned from a circle (bore) learn process.

- Offset - The work offset will be offset this distance away from the measured feature.

- Search Distance - Specifies the location that the probe will start searching for the surface. This is the distance away from the surface nominal that the probe will move at the "finding" speed that was established in the setup screen.

Available Navigation Bar Soft Keys on this Screen:

| Backward When enabled, this soft key scrolls back to any additional buttons available on the first page for this screen. |  | Back to Last Step This soft key goes back a step in the current procedure.
| Read Probe Position and Continue with Next Step This soft key reads the current probe position and then advances to the next step in the procedure. |  | Select Measurement Face This soft key determines the direction of probing and the location of the clearance moves for the feature. You can press this multiple times to choose a different measurement face. Available faces are: X+, X-, Y+, Y-, Z+ and Z-.
| Work Offset This soft key selects the named work offset from the list of offsets. Pressing this again will select the next work offset from the list. |  | Execute This soft key causes the machine to measure the feature. It will only be available after all the necessary probe positions to identify the feature location have been learned (or typed in). It lets you make changes and test run the feature before committing the feature to the program.
| Cancel All Steps / Abort This soft key stops and resets the current operation. If learning a feature, it removes all the learned probe positions. |  | Select a Probe If the Select Probe screen isn't the current screen then this soft key accesses the Select Probe screen. If the Select Probe screen is already visible then this soft key selects scrolls through each probe in the Probe list with each touch of the soft key.
| Help This soft key accesses the NC Gage help file. |  | Return This soft key returns the view up one level to the previous screen.
| Confirm to Update Work Offset This will be available after the machine has learned the feature location. It will save the command to the program. |  | Forward When enabled, this soft key scrolls forward to any additional soft keys available on the second page for this screen.

Follow the on-screen instructions to measure a circle, select the work offset to update, and then touch OK to update the work offset.

Update Process:

1. Position the probe in the center of the bore.

2. Press the Read Position soft key. The tip position is read as the bore center and distance away from the surface. Press to cancel this position if you want to read a new one.

3. Select Execute. NC Gage will drive the probe and search the Circle (Bore) by taking four automatic hits. From these it will determine the center of the circle.

Image indicating the starting manual position to jog the probe to (A) and the automatic probing pathways (red lines) taken by NC Gage as it measures four points (positions 1-4)

4. Once probing has completed, the measured values are updated with the circle's center.

5. Select the Work Offset name from the list.

6. Press Confirm to update with work offset. The axes that are not parallel with the work face normal work offset values will be updated.

The following is the specific feature path and logic built into NC Gage:

- Read position of probe in center of bore.

- Bore measurements will occur at Z value of read point.

- Estimate XY center of bore to be read position point.

- Measure point in +X direction using search distance from form.

- Return to center position.

- Measure point in –X direction using search distance from form.

- Return to center position.

- Measure point in +Y direction using search distance from form.

- Return to center position.

- Measure point in –Y direction using search distance from form.

- Return to center position.