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Christmas Cannon

Step 6Connect all the pieces

More Teflon tape was wrapped around the threading on the 1" male adapter and it was then screwed into the modified sprinkler valve.

The barrel is then screwed in to the other end and you're ready to go.

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2 comments

Nov 27, 2011. 11:01 AMsalishsilver says:

I agree, how is the valve modified? I have used ball check valves from the hardware store on similar projects. They are pricey but effective. I make a rocket launcher but this might be good to launch smaller rockets indoors.

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Nov 28, 2011. 3:57 PM

fungus amungus (author) says:

Like this

Haven't looked at this in a while and the links to the store where I bought my supplies have gone dead. Now it's an even more DIY project.

Alternatively, you can use a battery, wires, and a switch like this