The purpose of teaching mode is to adjust the theoretical measurement points specified on the design model to the actual physical inspected location on the manufactured model. This is done to ensure that the theoretical model agrees with the physical model. In practice this is typically done after the CMM machine has been taught how to measure the physical part. In the case when the inspected point does not lie exactly on the theoretical face, the point will be automatically projected to the theoretical face.
Please ensure that your part is modifiable before starting the teaching process. Note that any errors that occur, will be documented in the report that automatically appears in your web browser on completion of the process.
To teach a measurement plan, click Inspection and then, in the Adjustment group, click Teach. The Teach Measurement Points dialog box opens. Select the input file from the File Browser (this is the external file you exported in
Exporting the Measurement Plan). Specify whether or not to create new points with the Create Points toggle button and click OK to re-import the file. A report is generated during the teaching process detailing what teaching actions were taken.
Evaluating the Results
When the external file has been updated, it can be re-imported into the Inspection module and the results evaluated against the design module.
To evaluate the results, click Inspection and then, in the Show Result group, click Evaluate. The Evaluation dialog box opens. Select the input file from the File Browser (this is the external file you exported in
Exporting the Measurement Plan and then updated with the results).
This menu has the following options:
• Fdbk Size: Specifies the magnification factor to be applied to the tolerance variation. For example, if a factor of 10 is used, a tolerance variation of .1 mm would be displayed as 1 mm in length on the screen (see
Feedback Size).
• Datum Precn: Specifies the datum precision.
• Mode: Specifies which tolerance band should be evaluated. Upper only evaluates and displays upper tolerance contributions. Lower mode evaluates the lower tolerance contributions. Upper & Lower (default) considers both and displays the contribution which produced the greatest error (see
Tolerance Feedback Mode).
• Ranges: Toggle button to switch on/off the tolerance range dialog which indicates the color coding (see
Adding Limit Ranges). It is also possible to independently specify the color associated with upper and lower contributions within a specified zone. For instance, you can specify that all tolerances which exceed the upper tolerance zone by 100% be in bright red and all tolerances which exceed the lower tolerance zone by 100% be in dark red.
Within the evaluation browser, it is possible to organize the data by limit zones or by measurement plan. Using the right mouse button within the evaluation browser, select the desired mode in the pop-up menu that is displayed. Another option available is to show shared icons. With this mode on, all measurement points which are shared will have their references displayed using the shared-icon representation. During evaluation if the system detects that faces have moved from their inspected location, those inspected results will be ignored since evaluation would no longer be applicable. This is reported when the evaluation report is created.
Left: Upper/Lower, Middle: Lower only, Right: Upper only
Adding Limit Ranges
To add additional limit ranges, click Inspection and then, in the Show Result group, click Evaluate. The Evaluation dialog box opens. Click the Range check box. The Ranges dialog box opens. Type the new range in the Add data entry field. For example, to add a range 100% - 150%, simply enter 150. The new range is also shown in the Measurement Browser. If necessary, change the color code of the new range by first clicking it to display the color selector.
Synchronizing the Master Model
Synchronization is the process of bringing all the measurement information back to the master model. For conceptual information, see
Synchronization.
Please ensure that your part is modifiable before starting the synchonization process. Note that any errors that occur, will be documented in the report that automatically appears in your web browser on completion of the process.
To synchronize the master model, click Inspection and then, in the Adjustment group, click Synchronize. The Synch Measurement Plan dialog box opens. Select the input file from the File Browser. Click OK to import the file. The system displays a synchronization report telling you, for example, what data has been added to the model or removed from the model.
Navigating the Measurement Plan
Click Inspection and then, in the Measurement Plan group, click Navigate. The Navigate Measurement Plan dialog box opens. The content and functionality of this dialog box is similar to the Prepare Measurements dialog box—see
Preparing the Measurement Plan.
Changing Settings
This section describes how to customize the Inspection module. The following graphic shows the result of changing the default color of several attributes.
The settings described in this section are valid for the current session only unless you choose to save them to the environment.
The settings you can change are:
• Annotation: Specifies the color of selected annotation.
• Faces: Specifies the color of reference faces.
• Select Face: Specifies the color of selected faces.
• Points: Specifies the color of fixed points.
• Select Point: Specifies the color of the selected fixed point.
• Preview Point: Species the color of measurement points when adding measurement points and before clicking Apply.
• Point Label: Specifies the type of label to be displayed at the measurement point.
• Anno Visibility: Specifies what annotations are visible during inspection operations such as preparation:
◦ All in Group: Default, hides all annotations that do not belong to the selected group.
◦ Single: Shows the current annotation only.
◦ Same Owner: Shows all annotations belonging to the selected group plus all annotations attached to the owner (part or assembly) of the selected group.
◦ As Shown: Does not change any show/hide conditions from those previously defined.
• Show Disc: Specifies whether or not to display footprint at the base of the feedback arrows.
Figure 146. Left: Show Disc off, Right: Show Disc on
