### Pocket

To create a Pocket command:

1. Press the Measure soft key from the Main screen's Navigation Bar.

2. Press the Pocket soft key to display the Measure Pocket screen.

3. Follow the instructions on the screen to insert the command. Pay attention to the graphical description in the upper left section of the screen. It will show you where to position the probe for measurements and changes when multiple steps are required.

Parameters Definition:

- Center (XYZ Nominal) - Defines the nominal position of the top surface center of the pocket.

- Vector Angle - Defines the vector angle of the pocket.

- Width (Nominal) - Defines the nominal width of the pocket.

- Prehit Distance - Defines the distance away from the nominal surface at which the probe will start seeking the surface during measure.

Optional Settings:

- 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.

- Learn Then Measure - Selecting this option causes the machine to learn the location of the part using default parameters and then immediately re-measure the feature with the properties as set on the screen. This will allow the user to test all the set parameters and should warrant a more accurate and reliable first article inspection.

- Learn Using Values on Screen - This allows the user to enter the nominal values of the feature and have the software measure at that location. Selecting this option displays additional properties that are described in the Properties section.

Properties (Only visible with Learn Using Values on Screen selected):

- Front Side Length – This will be the distance from the first point to the second.

- Second Side Length – This will be the distance from the start point, if it were projected to the second side, to the point on the second side.

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. |  | Forward When enabled, this soft key scrolls forward to any additional soft keys available on the second page for this screen.
| Return to Previous Step This will remove the last learned probe positions. |  | 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-. |  | Delete Current Command / Delete Last Created This soft key deletes the current selected command (or the last created command) from the part program. If this icon is disabled, you may need to delete commands using the Edit Program screen instead.
| Learning and Creating a Command This will only be available after all the necessary probe positions to identify the feature location have been learned. It will cause the machine to measure the feature. |  | Cancel All Steps / Abort This soft key stops and resets the current operation. If learning a feature, it removes all the learned probe positions.
| 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. |  | Return This soft key returns the view up one level to the previous screen.
| Tolerance Settings This soft key lets you set or modify feature nominal and tolerance values used by the feature command. It is an overview of what will show up in the report screen. |  | Insert Move Point This will read the current position of the probe and insert that as a clearance move into the program.
| Confirm / Add Command For operations this confirms the selection. For commands, this will append the command to the end of the program. For feature commands, this will become available after the machine has learned the feature location or when you have typed the feature's nominal values.
For constructed and dimension feature commands, this will become available once you have specified the proper input features.

Help

This soft key accesses the NC Gage help file.

| Switch Focus Between This soft key toggles the placement of the cursor between different sections of the screen. |  |

Learn Process:

1. Position probe next to first point on first side and press the Read Probe Position soft key . The distance away from the work face surface will be the same on all the points.

2. Position probe next to second point on first side and press the Read Probe Position soft key .

3. Position probe next to point on second side and press the Read Probe Position soft key .

4. Press Learning and Creating a Command soft key . NC Gage will move to the clearance plane and automatically takes hits in a similar fashion as depicted below. The probe will search 4 times the prehit distance when learning these points.

Pocket Path: A-C) jog positions along center line 1-3) measured point positions. Red lines show the measuring path.

5. Press Confirm and Append Current Command to End soft key . The feature command is added to the part program. 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:

Learn Pocket Feature Path

- Read position of probe next to first point of first side of pocket, Z value will be measurement height of all points

- Read position of probe next to second point of first side of pocket, direction from first point to second point will define the direction vector of the pocket. This point determines approximate measurement location of 2nd point.

- Read position of probe next to a point on the second side of pocket, distance from this point to the line defined by the first two points defines approximate width of the pocket. This point determines approximate measurement location of 3rd point.

- If probe is left below clearance plane height, move up to clearance plane height.

- Move to position above first read point.

- Drop to measurement height.

- Measure point, target is 4* prehit distance away from pocket center line.

- Retract and move to second read point position.

- Measure point, target is 4* prehit distance away from pocket center line.

- Retract and move to third read point position.

- Measure point, target is 4* prehit distance away from pocket center line.

- Retract and move up to clearance plane height.

Execute Pocket Feature Path

- If probe is below clearance plane height, move up to clearance plane height.

- Move to position above first prehit point.

- Drop to measurement height.

- Measure point, target is 2* prehit distance away from pocket center line.

- Retract and move to second prehit point position.

- Measure point, target is 2* prehit distance away from pocket center line.

- Retract and move to third prehit point position.

- Measure point, target is 2* prehit distance away from pocket center line.

- If local clearance plane is enabled move to the local clearance plane between each point to get to next prehit point.

- Retract and move up to clearance plane height.