To Edit Classic Hole Sets
1. Right-click the Classic Holemaking sequence in the model tree and click 
.
.2. On the NC SEQUENCE menu that appears, click Seq Setup. The SEQ SETUP menu appears.
3. Click Holes in the Seq Setup menu.
The HOLES and the SEL MENU appear.
4. On the HOLES menu click Hole Set and select the required hole set from the SEL MENU. The HoleSet dialog box appears.
5. The upper portion of the dialog box contains six tabulated pages that provide means of hole selection:
◦ Axes—Specify holes by selecting individual hole axes.
◦ Groups—Select predefined drill groups.
◦ Points—Specify drill locations by selecting datum points or reading in a file with datum point coordinates.
◦ Diameters—Specify holes by entering diameter value(s). The system automatically includes all Hole or round Slot features of specified diameter(s).
◦ Surfaces—Specify holes by selecting surfaces of the reference part or workpiece. The system automatically includes all Hole or round Slot features located on selected surfaces.
◦ Parameters—Select holes with a certain parameter value.
6. Specify the holes to be drilled using any combination of methods listed above. See the topic Combining Selection Methods for information on how to use more than one selection method for defining a Hole Set.
 | Selection by Points cannot be used in combination with any of the other selection methods. |
7. Click Depth to select the desired depth option and specify references as appropriate to the depth type.
You can also use the following options, located in the lower portion of the HoleSet dialog box:
◦ Use Prev—Select a Hole Set used in a previous NC sequence. You can then modify this Hole Set for the current NC sequence.
◦ Auto Chamfer—If you select this option, the system automatically includes all holes with chamfers that can be machined with the current tool, and automatically determines depth and direction for Countersink drilling.
◦ Start hole for scan—If the SCAN_TYPE parameter is set to SHORTEST or TYPE_SPIRAL, lets you select the first hole to be machined.
| | If you set the CUT_DIRECTION parameter to REVERSE, this hole is machined last. |
◦ Direction for 5-axis drilling—Allows you to flip the direction of drilling for a selected axis (except axes selected with Auto Chamfer).
◦ Show rules used in selection—Displays the INFORMATION WINDOW that lists all the axes, surfaces, diameters, and so on, selected or explicitly unselected in the current Hole Set.
The Preview button at the bottom of the HoleSet dialog box highlights the axes or points selected so far, as well as the start and end surfaces, if appropriate. The drilling depth is listed in the message window.
8. Click OK at the bottom of the HoleSet dialog box when finished selecting the holes.
Hole Sets can be deleted using the Delete command on the HOLES menu. The Show command on the HOLES menu highlights the axes included in a selected Hole Set, as well as start and end surfaces, if appropriate. The drilling depth is listed in the message window.