Define Fixed Targets

Use this activity to define a simple collar target and toe target for a drill pattern. This activity is an alternative to Assign Surfaces to a Drill Pattern. For context, see Design a Drill Pattern.

Activity Steps

1. Select the Design module.
2. Right-click a drill pattern in the DataBlast Items Tree and select Edit Selected Drill Pattern in Designer from the menu.

   The drill pattern displays in design mode.

3. On the Drill Pattern Designer Ribbon Menu, in the Surfaces group, click Define Fixed Targets.

   The Fixed Targets screen displays.

4. Select the Collar Target from:
   • Surface—If selected, you need to assign a collar surface. See Assign Surfaces to a Drill Pattern.
   • Fixed RL—Enter a fixed relative level (RL).
5. Select the Toe Target from:
   • Surface—If selected, you need to assign a drill toe surface.
   • Fixed RL
   • Fixed Length—Enter a fixed length.

   Note: The toe target is also used as the excavation surface.

6. Select the Projection Style from:
   • Collar Down (default)—The collar target is used as the pattern anchor surface.
   • Toe Up—The toe target is used as the pattern anchor surface.
7. Select whether to Use Charge Surface. If checked, either assign a charge toe surface or DataBlast Ignite uses the bottom of the hole as the default charge toe position.
8. Click Accept.
9. To check each surface assignment:
   1. Deselect all objects except the drill pattern in the DataBlast Items Tree.
   2. Use the options on the Layers Toolbar (Drill Pattern Designer) to toggle the display of each of the assigned surfaces.
10. To review the settings:
    1. On the Drill Pattern Designer ribbon menu, in the Projection Summary group, click Projection Style Summary.

       The Projection Summary displays the selected settings for the targets and a summary of the assigned surfaces.

    2. Click Close.
11. Click Save Changes.