Using Drill Groups
When you select holes for a Holemaking NC sequence, the Rule: drill groups option in the Holes dialog box lets you select all holes included into an existing Drill Group.
You cannot modify Drill Groups at the time of creating an NC sequence. You can select more holes to be included in the Hole Set, but they will not be included in the Drill Group. You can also remove some of the holes from the Hole Set, either by adding more rules or by explicitly removing axes in the Axes tab.
If a hole in the selected Drill Group is not selectable for the current Holemaking NC sequence (for example, its axis is not parallel to the Z-axis of the NC Sequence coordinate system for 3-Axis Holemaking), this hole will be ignored. The rest of the group, however, will be included.
If a Drill Group is later modified, the Holemaking NC sequences that reference this group will be updated accordingly. The rules to remember are:
• If you remove a hole from a Drill Group, it will not be drilled.
• If you add a new hole to the Drill Group and the Customize functionality has not been utilized (that is, the holes are drilled according to the SCAN_TYPE), the NC sequence will be automatically updated to drill the new hole.
• If you add a new hole to the Drill Group and the Customize functionality has been utilized, the new hole will not be drilled until you adjust the Tool Motions.