Control Geometry refers to the part geometry that controls the current operation. 2 Axis operations can use 2D and even 3D curves and surface edges as Control Geometry. For 2 Axis operations, Control Geometry is divided into three possible categories depending on the operation type: Part Regions, Avoid Regions and Start Points. The Control Geometry tab has sub-tabs for selecting each of these categories of geometry from your part.
 Regions must be selected before they can be used in an operation. It should be noted that regions can be created and be present in a part file but if they are not selected in a machining operation then they will be ignored during toolpath computation. So creating a region does not make it active; you must use the Select Pre-Defined button before you Generate the toolpath.
For 2 Axis Facing operations, if no Control Geometry is selected when the operation is Generated, the Facing toolpath is automatically contained to the perimeter boundaries of the defined stock.
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Region Type
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Configuration
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Xpress
(XPR)
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Standard
(STD)
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Expert
(EXP)
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Professional
(PRO)
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Premium
(PRE)
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Curve
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Surface Edge
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Flat Area
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Features
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Pre-Defined
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Avoid Regions
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Start Point Regions
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Note: Some region types are not supported by all operation types.
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 Dialog Box: Control Geometry tab, Roughing, 2 Axis
The Part Regions tab displays in all 2½ Axis and some 3 Axis operations. It is used to drive the tool during the operation. Use one of the Select... buttons in this dialog to add Part Regions to the Selected Machining Region(s) list.
See Select Part/Containment Regions for more information.
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The Start Points tab allows you to specify a start point for the tool entry motion for pocketing and roughing operations. Selecting a start point applies the entry motion to the specified location.
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This button moves the selected item up (i.e., higher) in the list. Items are machined in the order listed.
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This button moves the selected item down (i.e., lower) in the list. Items are machined in the order listed.
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Pick this button to Remove All Regions from the list. The geometry itself is not deleted from the part model.
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Pick this button to Remove the selected Active region from the list. You can select multiple Regions from the list using the Ctrl key and then pick this button to remove them all. The geometry itself is not deleted from the part model.
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Pick this button and the dialog will minimize, prompting you to make a selection from your part. You can select curves or face edges. After completing the selection, the dialog will re-appear with your Region selections listed.
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Pick this button and the dialog will minimize, prompting you Select surface for boundary. You can select one or more part surfaces. After completing the selection, the dialog will re-appear with each surface edge boundary listed in the Selected Machining Region(s) list.
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Pick this button and you are prompted to make a selection from your part. You can select flat planar face geometry. After completing the selection, the dialog will re-appear with your region selections listed.
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Pick this button to select Start Points for the operation. The dialog will minimize, prompting you to make a selection from your part. You can select either a point or a curve/edge. If you select a curve/edge, the Start Point of the curve/edge is used. After completing the selection, the dialog will re-appear with your Region selections listed.
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If you pick this button, the Select Pre-defined Machining Regions dialog will display, allowing you to select one or more Regions. This operation dialog will then re-appear with your region selections listed. Pre-Defined Regions can be created using the options on the Regions tab of the Machining Objects Browser.
See Predefined Machining Regions for more information.
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This will minimize the dialog and prompt you to Select Features for the operation. From your part model, select one or more features you want to machine. (Note: Features will highlight on the part as you move the mouse cursor over them.) After confirming your selection the dialog will re-appear with your features listed. Machining Features can be created using the options on the Features tab of the Machining Objects Browser.
See Features Tab, Machining Objects (Mobs) Browser for more information on creating toolpath operations from 3D Features.
Note: This feature is not available in Xpress configuration.
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