When you access the ClearanceCube
Definition dialog box from the Edit | Preferences
| Set ClearanceCube... menu or from the ClearanceCube
toolbar by clicking the Clearance Cube Definition
button , it opens in this
simplified interface:
ClearanceCube Definition dialog box
This dialog box contains these options:
Offset value - Determines the distance away from the CAD model on all six sides where PC-DMIS draws the ClearanceCube. It is saved in the current measurement routine. The cyan-colored rectangle indicates the surface that PC-DMIS assumes the part is resting on. PC-DMIS uses the same units of measurement as the measurement routine. So, a value of 1 could be either 1 mm or 1 inch, depending on what was initially selected when the measurement routine was created. Increasing the offset value increases the size of the ClearanceCube. If the offset distance is not the same for all faces, this box shows "N/A". This can happen if you modified the offset distance for specific faces in the Advanced dialog box and then came back to the Simple dialog box. Type a new value if you want the offset distances on all faces to be the same.
Activate
ClearanceCube motion - Determines whether or not the measurement
routine uses the ClearanceCube for its motion. While ClearanceCube
motion is enabled, clearance planes are disabled, and new features
added to the measurement routine have their ClearanceCube property
on the Status
tab of the advanced-style ClearanceCube Definition
dialog box set to ON. If you want existing features to use ClearanceCube
motion, you need to manually turn ON their ClearanceCube property.
You can also turn the motion on or off from the ClearanceCube
toolbar, by clicking the Activate ClearanceCube
motion icon .
Motion Order
When active, motion is done in the following order:
Any motion from the feature measurement used with the AFTER option in an AVOIDANCE/MOVE command within an Auto Feature command.
Any move or
motion commands that are in the measurement routine and
between the most-recently measured feature and the next
feature measurement command, or the last command, if this
was the last feature measurement command in the measurement
routine. This includes any tip
change commands, which are handled
as a special case.
Any motion to the ClearanceCube and around the ClearanceCube to get the probe to a position where there is a clear path to the next feature to be measured. These are the planned motions from this enhancement. Note that these commands are computed and executed, but not added to the measurement routine. They are computed each time at execution. Each feature is assigned an initial ClearanceCube face. If there are no move commands and if Activate ClearanceCube motion is enabled, this is the face for the initial move from this feature to the ClearanceCube.
Any motion from the feature measurement used with the BEFORE option in an AVOIDANCE/MOVE command inside the next Auto Feature command.
If Activate ClearanceCube motion is enabled, all clearance plane functionality for your measurement routine are disabled. ClearanceCube motion and clearance planes cannot coexist in the same measurement routine. Be sure to check for collisions before executing your measurement routine. See the "Detecting Collisions" chapter.
Show
ClearanceCube - This check box determines whether or not
the ClearanceCube is drawn in the Graphic Display window. You
can also do this from the ClearanceCube
toolbar by clicking the Show ClearanceCube
icon . If this option is enabled, it also
enables the Resize ClearanceCube option
described below.
Resize
ClearanceCube - This check box places the ClearanceCube
in resize mode. When in resize mode and the ClearanceCube is visible,
you can click and drag a face of the ClearanceCube and set offset
distances per axis that way. A reddish highlight indicates the
face to drag. You can also do this from the ClearanceCube
toolbar by clicking the Resize ClearanceCube
icon .
This option is only available when the Show
ClearanceCube option is enabled.
You can also use the Operation | Graphic Display Window | ClearanceCube submenu to toggle the Activate, Show and Resize options described above.
Advanced - This button expands the simple dialog box into a multi-tabbed dialog box so you can set more specific options. The tabs on the advanced dialog box include: Size, Constraints, and Status. This button then changes to read Simple. You can click Simple to display the simple-style dialog box.