Allow reselection for blast hole
You use this function to toggle the firing sequence to allow the reselection of the blast holes while generating a customised firing sequence. Ticking the option will allow you to reselect the blast holes while generating the customised firing sequence.
To run this function: Choose Design > Blast design > Firing sequence > Customised firing options > Allow reselection for blast hole, or...
While generating a customised firing sequence, you can select the blast holes only once for tying them in a row. In the case that you make a mistake and you want to correct it, then you need to tick the option Allow reselection for blast hole. This will allow you to reselect the blast holes for tying them in a row.
Show parameters for each row
You use this function to toggle the firing sequence between accepting the parameters for each row.
To run this function: Choose Design > Blast design > Firing sequence > Customised firing options > Show parameters for each row, or...
While generating a customised firing sequence using the Blast increment row number function, ticking the option Show parameters for each row will display a form for each row, so that you can change the input parameters for that row. Unticking the option will not display the form for each row, and the firing sequence is generated using the parameters entered earlier. When parameters are accepted for each row then the following Edit customised firing sequence parameters form is displayed for each row.
Edit customised firing sequence parameters form
Tie in line / row number
Enter the row number for the blast holes. All the selected blast holes will be tied in this row. A string corresponding to this row number will be created in a new layer. The row number is used to assign the string numbers for different strings representing different rows.
Inter row delay
Select the delay from the combo box. The delay names that are displayed in the combo box are from the blast defaults.
Snap to firing line tolerance
This is the influence on either side of the base line dragged by the user. All holes whose perpendicular offset from the digitised firing base line is less than this tolerance are considered to be on the same firing row.
Cumulative surface delay settings
This section of the form allows you to view / edit the cumulative surface delay time.
Reset cumulative delay time
Tick this box to reset the current cumulative delay time to a new value.
Input new cumulative delay time
The cumulative delay time is set to the value entered in this field.
For example : If the current cumulative delay time for the previous row is 300ms. and if you reset the current cumulative time to 0ms and assign a delay of 25ms to the current row, then the cumulative delay time assigned to the current row will be 25ms.
The current cumulative surface delay time is
This field displays the current cumulative delay time assigned to the previous row.