Giant Slingshot





Introduction: Giant Slingshot

About: I'm a big geek who enjoys reading, programing iOS apps, HTML, and arduino robot. I am a huge sci-fi geek and my favorite shows are Doctor Who (& I'm American!), Eureka, & Warehouse 13. I participate in a gre...

This Instructable will show you how to make a giant slingshot.
Disclaimer: I am not responsible for anything you do with knowledge.
PS I am entering this in the Alchemy Goods Inner Tube Reuse Contest!

Step 1: Materials

You will need a inner tube (any as long as it is still holding together, it's ok if it is punctured)
a frame (giant Y log, two trees ect.)
a bucket or plastic bowl

Step 2: Step 1

Using scissors cut the out the air input valve.then cut the long way down on both sides so you get 2 long strips.

Step 3: Step 2

Tie the end of each strip on either side of the buket

Step 4: Step 3

Now tie the other ends to each side of the frame

Step 5: Your Done!

Now pull back and FIRE! Remember to always stay safe and launch anything other than water balloons at other people.

Alchemy Goods Inner Tube Reuse Contest

Finalist in the
Alchemy Goods Inner Tube Reuse Contest



    • Clocks Contest

      Clocks Contest
    • Water Contest

      Water Contest
    • Backpack Challenge

      Backpack Challenge

    21 Discussions

    on step 1 I created the second one and step 2. The first picture (in the intro) was of my cousins slingshot.

    The following text has been censored. My cousin emailed me saying that he and his friends built that! He lives so far away so I rarely see him. When i do see him he is dead (figuratively)!

    I am not sure if he will want me to say this so I'll pm you after you reply to this comment.

    i think it's important that you mention safety hazards in building this. with so much tension in the tube, the frame is pretty likely to be uprooted and fly backward. even one of the connections of the tube to the frame can pop off and hit you. and, as with any siege, engine, you have to make sure that no one is anywhere NEAR where you're launching.
    i think you should mention these in the actual instructable and not just in the comments, especially about making a very strong, very secure frame. include instructions on how to do it safely, not just saying to get one.
    other than that, very good idea and seriously, it needs a video. it's cruel to post something like this on the internet and not include a video.

    4 replies

    About the safety hazards ill do that, but that is what the disclaimer is for. But seriously I'll talk about the safety hazards. I did say to never aim at any living thing. But about the video i am currently trying to find time to do that.

    If its your 'cousins' catapult, how are you trying to find time to make a video when you rarely see him.

    The original was given to me from my cousin and he said it was his but it was not. However I did build my own but since my camera stinks and I have to take pictures from my computer using a webcam which I cannot move because it is one of those old computers that take up a lot of space and are really heavy. I might build a pinhole camera to take he picture.

    Watch out for backfires:!!_Amazing_Race_Video&rct=j&q=amazing%20race%20watermelon%20hoax&ei=MaHCTMKFEoGssAOe-pztCw&usg=AFQjCNE6NSHwK-wW7eCqrqzwxXM9IDyFsQ&cad=rja
    3 replies

    to late...
    my brother was hit in the face launching water balloons. He did not get hurt (or did he).

    My early-teen daughter got hit in the face with a water balloon. After a couple months of eyedrops and a bunch of opthalmologist visits, you couldn't see the little pool of blood at the bottom of her iris anymore. (mind you, this was paranoid and precautionary; there were never any noticeable vision problems. But that "you'll poke your eye out" cliche is only amusing when it hasn't come close to happening.)

    there are rumors that the amazing-race clip is a fake (waterballoon instead of a watermellon, etc) I think that even so, she was pretty lucky not to have been more seriously hurt...

    I think it was fake. A watermelon at that speed would at least cause a bloody nose not just a headache.