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Step 4You are finished; firing
Let the cement cure for a couple hours.
Firing:
-Unscrew the end cap
-Force a potato into the barrel (this is easier if you sharpen the end of the barrel with a file)
-Pack it down with a broom, make sure its still inside the barrel, and not the combustion chamber
-Spray some hair spray into the 3" pipe for 2-3seconds
-Quickly screw the end cap back on
-Point it at a 45 degree angle to maximize range and push the ignitor
Firing:
-Unscrew the end cap
-Force a potato into the barrel (this is easier if you sharpen the end of the barrel with a file)
-Pack it down with a broom, make sure its still inside the barrel, and not the combustion chamber
-Spray some hair spray into the 3" pipe for 2-3seconds
-Quickly screw the end cap back on
-Point it at a 45 degree angle to maximize range and push the ignitor
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This works 100% of the time.
Make sure the lighter hole is tight so flamed don't shoot out along the sides.
i had the same problem when i made mine.
1. butane is harder to use than hairspray ( in my opinion because i count how many sprays i need for it to work )
2. to make the gas light you need to get the right ratio of air and gas in your gun.. you can only do this by trying and trying again.
3. remember to blow in your gun every time it fires to get some fresh air into the chamber and the Co2 out.
it will work just be patient, and remember to count how many sprays you need to spray for it to work, then it will work every time as long as you blow fresh air in every time.
my gun takes 3 short sprays and it works!.
give me some feedback.
i finialy settled for starting fluid and a lighter fro, a coleman lantern
Those piezo sparkers aren't pressure sealed. I did that with one of my cannons and when I fired it, it blew the button off the sparker.