Hole Recognition Dialog
Introduction
This topic will explain the Hole Recognition dialog, describe how to access it, explain the options found in it, will provide an example, and provide links to related topics.
The Hole Recognition dialog
The Hole Recognition dialog allows you to select a knowledge base template to apply to selected geometry
The first step of Milling Wizards is to assign geometry for the feature. 
 All operations in the feature are performed on the selected geometry. 
 This can be a single entity or multiple entities depending on the type 
 of feature. The Hole features use points, arcs, cylindrical surfaces, 
Navigation
To apply the Hole Recognition feature, you can either:
- In the CAM Tree, right-click the Milling Job, and select Hole Recognition. 
 This method will apply the Hole Recognition to all available Machine Setups in the job, and any Index Systems contained in those Machine Setups.
- In the CAM Tree, right-click the desired Machine Setup, and select Hole Recognition. 
 This method will apply the Hole Recognition only to that particular Machine Setup, and any Index Systems contained in that Machine Setup.
- In the CAM Tree, right-click the desired Index System, and select Hole Recognition. 
 This method will apply the Hole Recognition only to that particular Index System.
Supported Geometry Types
When selecting geometry for Hole Recognition, you can select whole solids, points, arcs, surface edges, or cylindrical surfaces. Using the whole solids method is highly recommended.
Selecting Whole Bodies
When using the Select Whole Bodies option, the software automatically creates features for all holes (or radii) found in the model. This may result in more features than desired, but you can simply deselect the extra features from the Recognized Hole Features dialog, or delete them from the CAM tree after they are created. Note that you can use the Options group to limit the hole diameters for which the software creates features. To use any other selection option, ensure the Select whole bodies option is cleared.
Cylindrical Surfaces
Selecting cylindrical surfaces allows the software to automatically set the diameter, top of feature, and the feature depth for you.
Points, Arcs, or Surface Edges
Depending on the Z-axis location of the geometry and the settings that you define, the software may automatically set the diameter, top of feature, or feature depth, but not all of them. Be sure to properly set (or confirm) all of these parameters when using these geometry types.
The Hole Recognition dialog
                                                     Knowledge Base
 Knowledge Base
		 
                                                Use the drop down to choose a particular Knowledge Base template. Using this template will apply the rules defined in it to create the hole features. To learn more about the Knowledge Base, see the Knowledge Base topic.
Note: The last Knowledge Base template to be edited in the Knowledge Base will automatically be shown here.
                                                     Geometry
 Geometry
                                                - Select Whole Bodies
                                                        
 
  Select the check box to enable whole body selection. When 
			 you click a part model, the entire model is selected. Single 
			 entity selection is disabled. When using the Select Whole 
			 Bodies option, the software automatically creates features 
			 for all holes (or radii) found in the model. This may result 
			 in more features than desired, but you can simply delete the 
			 extra features from the CAM tree after finishing the wizard. 
			 Note that you can use the Options group to limit the hole 
			 diameters for which the software creates features. Select the check box to enable whole body selection. When 
			 you click a part model, the entire model is selected. Single 
			 entity selection is disabled. When using the Select Whole 
			 Bodies option, the software automatically creates features 
			 for all holes (or radii) found in the model. This may result 
			 in more features than desired, but you can simply delete the 
			 extra features from the CAM tree after finishing the wizard. 
			 Note that you can use the Options group to limit the hole 
			 diameters for which the software creates features. Clear 
			 the check box to use standard single entity picking. This 
			 allows you to select single sketches, edges, surfaces, or 
			 CAD features. Clear 
			 the check box to use standard single entity picking. This 
			 allows you to select single sketches, edges, surfaces, or 
			 CAD features.
Selecting and Removing Geometry
The entities that you select in the graphics area display in the Selected Geometry list.
 Delete - Removes the currently selected items from the list. Delete - Removes the currently selected items from the list.
 Delete All - Removes all selections from the list. Delete All - Removes all selections from the list.
Tip: You can also remove geometry selections by deselecting entities in the graphics area
                                                     Point and Arc Usage
 Point and Arc Usage
                                                - Ignore Z - means that 
				 the Z-axis location of the geometry is ignored so that 
				 you can manually set the Top of Feature and the Feature 
				 Depth in the wizard. This option is helpful when the selected 
				 geometry is not the top or bottom of the hole.   
- Use as Top - means that 
				 the geometry is the Top of Feature (the top of the hole). 
				 The software calculates the toolpath using the Z-axis 
				 location of the geometry as the top.   
- Use as Bottom - means 
				 that the geometry is the bottom of the feature (bottom 
				 of the hole). The software calculates the toolpath using 
				 the Z-axis location of the geometry as the bottom.   
                                                     Options
 Options
                                                The Options group allows you to set particular parameters to decide what will be created for a hole feature and what will be ignored.
- 
                                                        Minimum Hole Diameter - is the smallest hole diameter that is used for the current drilling feature. Any smaller holes will be ignored. 
- 
                                                        Maximum Hole Diameter - is the largest hole diameter that is used for the current drilling feature. Any larger holes will be ignored. 
- 
                                                        Minimum Sweep Angle - allows you to define an acceptable range for open, or partial holes. Any holes whose start and end ranges are below the specified angle will be ignored. 
- 
                                                        Allow group 
  With this check box selected, holes with the same diameter, but different depths or heights, will be divided into separate groups inside of the same feature. With this check box selected, holes with the same diameter, but different depths or heights, will be divided into separate groups inside of the same feature. With this check box cleared, holes with the same diameter, but different depths or heights, will be kept as separate features. With this check box cleared, holes with the same diameter, but different depths or heights, will be kept as separate features.
Quick Steps
In the Hole Recognition dialog:
- Select the Knowledge Base template to apply. 
- Select the desired geometry. 
- Adjust the Parameters as needed. 
- Adjust any necessary Options. 
- Click OK.
 The Recognized Hole Features dialog appears.






