#### Update Two Axes (Outside Corner)

The Update Two Axes (Outside Corner) soft key can be used to measure an outside corner on a part and then use its corner coordinates to update a specified work offset.

1. Press the Set Work Offset soft key on the second page of the Main screen. The soft keys at the bottom will change to show the different types of features you can measure to set a work offset.

2. Press the Update Two Axes (Outside Corner) soft key to display the Update Two Axes (Outside Corner) screen.

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.

- Prehit 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.

- Hit Clearance Plane - Selecting this option causes the probe to move to a clearance plane between each hit of the feature. The edit box to the right will allow the user to enter the distance to the plane. This plane is not the program clearance plane.

Available Navigation Bar Soft Keys on this Screen:

|  |  | Set Work Offsets This soft key displays a new screen with new soft keys for updating work offsets in various situations.
| Select a Work Offset to Update This soft key selects the named work offset from the list of offsets for updating. Pressing this again will select the next work offset from the list. |  |
|  |  | 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.

Follow the on-screen instructions to measure an outside corner, select the work offset to update then press the Confirm soft key to update the selected work offset.

Update Process:

1. Position the probe next to a surface comprising the corner.

2. Press the Read Position soft key .

3. Position the probe next to the first point of the same face.

4. Press the Read Position soft key .

5. Position the probe next to a second surface comprising the corner.

6. Press the Read Position soft key .

7. Position the probe next to the first point on this second surface.

8. Press the Read Position soft key .

9. Select the Execute soft key then NC Gage will automatically takes hits in a similar fashion as depicted below.

The image on the left indicates the manual jog positions (A-E) to which you should jog the probe. The image on the right indicates the automatic probing pathways (red lines) taken by NC Gage as it measures five points at positions 1-4.

10. Once probing has completed, the measured values are updated with the corner's location. Select the work offset name from the list by pressing the Select a Work Offset to Update soft key until the desired work offset is highlighted. Parameters for each highlighted work offset will be updated on the screen as each one is selected.

11. Press the Confirm soft key to update the work offset. Press the Return soft key to return to the previous screen without saving.

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

- Read position of probe next to first point of first side of corner. All measurements will be taken at level of this point.

- Read position of probe next to second point of first side of corner.

- Read position of probe next to first point of second side of corner.

- Read position of probe next to second point of second side of corner.

- Determine first and second direction vectors and normal vectors.

- Compensate points.

- Determine approximate corner point.

- Check position of probe, if it is not clear of the corner, move probe to the intersection of the two lines formed by the four learn points. Do this move as a two axis move. If position is above the measurement height move XY first then Z, if the position is below the measurement height move up in Z then move ZY.

- Position probe to first read point position.

- Measure toward first side surface, depth matches first point of second side.

- Position probe approximately to second read point.

- Measure toward first side surface, depth matches first point of second side.

- Move to point beyond corner to avoid collision.

- Position probe approximately to third read point.

- Measure toward second side surface, depth matches first point of first side.

- Position probe approximately to fourth read point.

- Measure toward second side surface, depth matches first point of first side.