Todd's Blast Design Viewer

Data

⬆

Drop CSV here

or use Upload CSV

Columns: id, x, y, elevationn (values in feet)

Depth = collar elev − design floor (+ subdrill). All units in feet & inches.

Design floor elevation (RL) Subdrill Hole diameter (inches) Stemming height ANFO density (g/cm³) ANFO charge (lb/ft)

lb/ft = 0.3405 × ρ × d² (ρ density, d diameter in inches)
Charge length = hole depth − stem height
Total charge/hole = lb/ft × (depth − stem)

Elev/subdrill/stemming: 15' 6" or decimal ft. Optional CSV: diameter, stemming.

Set floor RL to compute depths

lb/ft and weight appear when design is set

Hole IDs Depth labels Grid Perimeter box Flip east–west Color by Scale collars by diameter Display size boost

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Elevation (RL)

Click a hole on the plan

Upload a CSV with columns id, x, y, elevationn (feet)

Or load the sample pattern · all lengths shown in feet & inches

X: — Y: — Zoom: 100%

ID	X	Y	Elev.	Depth	Stem	Chg len	lb/ft	Chg/hole	Toe RL	Dia.
No holes