- THIS INSTRUCTABLE INVOLVES HAZARDOUS MATERIALS.
- OXIDATION HAZARD.
- EXPLOSION HAZARD.
- YOU CAN HURT YOURSELF.
- NOT FOR CHILDREN.
- FOLLOW DIRECTIONS CAREFULLY, AND USE COMMON SENSE.
Step 1: Gather materials
- nichrome wire (for igniter). Failing this, you can use some thin (30 AWG) copper wire
- medium gauge (16 AWG or so) insulated wire (stranded), for trigger wires
- normal bond paper
- cellophane tape
- aluminum power
- potassium perchlorate
- wire strippers
- a small scale (capable of weighing small numbers of grams accurately)
- a metal cylindrical roller
- an anti-static computer bag
Step 2: Make fuse
First, cut two pieces of your fuse wire, 1 to 2 feet long. Strip both ends.
Next, cut a small piece of your igniter wire, about 1.5" long.
Twist one fuse wire to each end of the igniter wire.
Double the ends of the igniter wire over, to add mechanical integrity
Straighten the whole thing out.
Step 3: Make flash powder
Make about 1 to 1.5 grams of flash powder for each squib.
Step 4: Cut paper
Step 5: Measure flash powder into wrapper
Pour 1 to 1.5 grams (about 1/2 tsp) of flash powder onto the igniter.
Make first fold about 40% of the way up the wrapper.
Step 8: Final fold
Turn the wrapper over, and place flat on the table.
Fold the open end across, on the opposite side as the first end you folded. Include the fuse wire in the fold.
Tape in place.
Wrap another piece of tape around the entire squib for good measure, to keep it from spontaneously untaping.
Step 9: Storage
Keep away from children, pets, other chemicals, and sources of ignition.
Step 10: Use
- Step WAY back (at least twenty feet),
- get hearing protection (it's about as loud as a good-size gunshot),
- clear the area of bystanders, and post spotters so no one goes near the charge
- plug it in -- BOOM!!
- be sure to unplug before picking up the pieces!