DO NOT use the Air Blaster to fire air or projectiles at people or pets, always aim it at a wall or other solid surface to create a loud sound, or at a haunt prop, such as Dracula's toupee to make it flap around menacingly, or to fire confetti up in the air.
Air Tank
A 5 gallon (or bigger!) air tank to store your compressed air. This needs to have a 1/2" threaded port on it -- the tank attached to your typical shop air compressor will likely not work due to having a smaller 1/4" outlet.
You'll also need thread seal tape.
1/4" Pipe Fittings
You'll build the air blaster from a set of pipe fittings (galvanized or black pipe is fine), adapters, couplers, regulators, and cut-off valves.
- 1/4" male brass industrial plug for connecting your compressor for filling the tank
- 1/4" FIP ball valve to shut off the air flow on the inlet side
- 1/4" x 1-1/2" threaded pipe nipple
- 1/4" x 4" threaded pipe nipple (optional)
- 1/4" tee fitting
- 125 PSI 1/4" NPT pressure relief valve
- 1/4" x 1-1/2" threaded pipe nipple
- 150 PSI air compressor regulator with dial gauge 1/4" female threaded to check the filling pressure
- 1/4" x 3" threaded pipe nipple
- 1/2" MIP x 1/4" FIP bushing this adapts us up to 1/2" for the rest of the parts
1/2" Pipe Fittings
This section takes us into the air tank and then out through the solenoid valve, all at 1/2".
- 1/2" tee fitting
- 1/2" x 3-1/2" pipe nipple this connects to the air tank
- 1/2" x 2" pipe nipple to connect the outlet of the tee fitting to the ball valve
- 1/2" FIP full port ball valve to shut off airflow on the outlet side
- 1/2" x 2" pipe nipple to connect the outlet of the ball valve to the solenoid valve (this is the second of two of this size needed)
- 1/2" x 12" pipe nipple to act as the barrel of the blaster
Tools
You'll need an adjustable wrench and a pipe wrench to fasten the fittings tightly enough to be pressurized without leaking. I happened to have a couple of sets of adjustable wrenches and pipe wrenches so I set one for 1/4" and the other for 1/2" to make life easier.
You'll also need a soldering iron to solder the header pins on the Feather, FeatherWing, and FeatherWing Doubler, as well as wire strippers and a small screwdriver.
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