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  1. #1
    Senior Member scotti158's Avatar
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    Trebuchet?

    My almost 5yr. old grandson is showing interest in gadgets that throw thing great distances. We've already built a ping pong ball catapult for indoors use that is great for nailing someone by surprise as they walk out the bathroom door. Anybody build an outdoor use catapult or trebuchet? Probably a tennis ball projectile would be the best....for now.
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    Senior Member phelonius's Avatar
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    Many years ago we had a stainless steel pipe with one end capped. We stood it in the street at a steep angle, it was about 4 feet long.
    We would light an M-80, the old good ones, and drop it down the pipe. Then hastily follow it with a tennis ball.
    Way down the street in the next block a bunch of kids would try to catch the ball on re-entry.
    Phelonius

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    Senior Member Fred's Avatar
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    M-80s might be a bit much for a five year old.
    Normally I would suggest a water ballon catapult made from surgical tubing as it is safer on the neighbor's windows. However with winter approaching in New York maybe ice balloons aren't a good idea either.
    Perhaps stay with something small and safe, lots of designs on internet. images-2.jpeg
    Later can work up to bigger outdoor designs, let the little guy help you build something like this catapult/slingshot idea.images-3.jpeg
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    Senior Member Darth's Avatar
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    The best scene from the best TV series...ever.
    From Northern Exposure.

    "It's not what you fling...it's the fling itself."
    jtomelliott49 and grewen like this.
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    Senior Member scotti158's Avatar
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    Quote Originally Posted by Darth View Post
    The best scene from the best TV series...ever.
    From Northern Exposure.

    "It's not what you fling...it's the fling itself."
    Now, THAT was cool!!
    Darth and jtomelliott49 like this.
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    Senior Member kj7687's Avatar
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    No trebuchets, but the shop guys at my middle school built a fully functioning ballista that would chuck spears all the way down the football field lol.
    KJ, just KJ, ok.


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    Senior Member kj7687's Avatar
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    Ice balloons - haha, I like the sound of that
    KJ, just KJ, ok.


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    Senior Member phelonius's Avatar
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    I have launched water balloons with a giant slingshot that flew more than 100 yards. But an easier and quicker way to do water balloons is a giant david sling.
    Sewn up out of an old pair of levis, It could launch a softball sized water balloon well over 50 yards, sometimes as much as 75 yards.
    JUst like David did to goliath, swing it around your head and let go one end. Accuracy takes practice but is achievable. The best part is that you can bomb one onto someone
    and unless they actually saw you do it they won't think you are guilty because you are too far away to be the one who threw it.
    Phelonius

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    Senior Member Tweaker's Avatar
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    Ok it doesn't throw things far but it does shoot them and is easy to build. How about a potato canon? You get a piezo barbeque igniter, some 1 1/2" abs sewer pipe and a can of hairnet hairspray , wd40, or propane and some costco giant potatoes. Woamp! 100 yard potatoe chunks.
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    Senior Member kj7687's Avatar
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    Quote Originally Posted by phelonius View Post
    Many years ago we had a stainless steel pipe with one end capped. We stood it in the street at a steep angle, it was about 4 feet long.
    We would light an M-80, the old good ones, and drop it down the pipe. Then hastily follow it with a tennis ball.
    Way down the street in the next block a bunch of kids would try to catch the ball on re-entry.
    We did firecrackers in pipes like that when I was a kid (I was too little to really understand the "engineering"/mechanics, but IIRC they had a little hole drilled into the pipe just past the cap, for the cracker's fuse); but we'd set the pipes horizontally and shoot marbles at things (like Lego men or barbies stolen for mutilation). Pretty amazing that none of us ever burned the house down or lost a finger. Adult supervision was unheard of
    Last edited by kj7687; 10-23-2016 at 11:56 PM.
    KJ, just KJ, ok.


    Current rides:
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    Past rides: 2015 Yamaha XT 250, 1997 Suzuki DR 200, 2007 Honda Ruckus, 2007 Yamaha TW 200, 2007 Kawasaki Ninja 500, 2009 Kawasaki KLX331S; 1994 GMC Sierra 1500, 1987 Nissan Pathfinder, 1992 Acura Integra, 1986 Honda CRX, 1989 Jeep Cherokee, 1994 Chevrolet Astro Van, 1979 Volkswagen Rabbit, 1984 Jeep Cherokee

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