In this episode of weekend projects, you will learn how to bring a rain of apples and pumpkins upon the earth.

For the Johnny, an apple shooter, I used a bbq igniter to ignite the fuel. After doing some research, I’ve found that my muzzles are too short. The volume of the muzzles should be 1.5x the volume of the ignition chamber. The next vegetable projectile that I make will have a longer muzzle. Of course then they won’t fit into the spud gun rack in the back window of my car! I used 2′ of 4″ diameter abs for the ignition chamber and 2′ of 3″ abs for the muzzle. If I were to do it again, i would use 4′ for the muzzle.

For the pumkin canon, aka the “Pumpk-zooka,” I used a five foot piece of 4″ abs. In truth, I could have used the entire 10′ section and gotten A LOT more power out of it, but I’m limited by what I can fit in my car. True pumpk-zooka fiends will buy a trailer or set up a hydrolic rig in the bed of their pick-up truck! Because I was a scared of the pumpk-zooka’s raw power, I set up a remote switch. The stun-gun’s switch popped right out and I soldered a long set of wires to it so that I could hide behind a log just in case the plastic ruptured. Today is the Pumkin Chunkin, a worldwide pumpkin tossing championship for vegetable projectile enthusiasts. Here’s a previous blog post about it.


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