Crazy slingshot guy at it again with a 220 lb steel ball cannon


Good old [Jörg Sprave].

That guy just doesn’t quit building insane slingshots. If he’s not honing his machete slinging skills in preparation for the zombie apocalypse, he’s blowing out car windows with giant steel balls.

The huge cannon you see above is modeled off a small slingshot he made a while back, which fired 8mm steel bearings. In its larger form, the slingshot is said to be ten times the size of it’s smaller brother, firing 80mm steel balls with incredible force. In the video below, [Jörg] and his friends cart the slingshot out to a huge empty field where they run it through its paces on several different objects. Their first shot flies about 220 yards into a high tension tower, after which the boys aim their sights on an old car.

The power with which the slingshot fires is definitely impressive. With a few well-placed shots, the car is pretty much done for.

Now that we’ve seen [Jörg] fire off saw blades, machetes, and giant ball bearings, we can’t wait to see what comes next!


  1. Abbadon says:

    I only have one word for this… Awesome!

  2. liebesiech says:

    His next slingshot will replace the first stage of the Sojuz rocket.

  3. third says:

    Siege Engine hacks? Keeping with the theme I see. ;)

  4. Mike says:

    Watched video THEN RTFA…I thought this guy looked familiar…one crazy SOB

  5. bad_alloc says:

    As Einstein said: “WW3 will be fought with sticks and stones.” — did he have this guy in mind?

    • Kevin says:

      It was actually the 4:th world war that he was saying we’ll use sticks and stones, we’ll probably destroy the world in the 3:rd one.

      This guy is crazy, it’s hard to believe you can fire such a heavy ball at that kind of speed with a slingshot.

  6. Andrew says:

    Awesome!This is what happens when you give men the resources and time to kill.

  7. MyL177l3Pwny says:

    When ww3 comes I want to be on his side lol

  8. K!P says:

    nooo not the beer!

  9. Timo says:

    This is a pretty awesome piece of German home engineering…I like!

    (Come to the dark side, we have slingshots! mwahaha…)

  10. says:

    I think this is what the Romans called a scorpion.

  11. Mad Myche says:

    Ummm, for some reason I think this title is wrong… there is no way that an 80mm sphere of steel weighs anywhere near 100kg (220#)
    80mm sphere has a 4cm radius, and a volume of 268cc. Steel has a density around 8g/cc which gives me 2200 grams or just under 5 pounds

  12. Hunter says:

    And his name goes into my Rolodex of people to find in the Zombie Apocalypse, or the Robot Wars, which ever comes first.

  13. peet says:

    Rothaus on Hackaday, ich glaubs ja nicht :D

  14. Frank Frank says:

    “Their first shot flies about 220 yards into a high tension tower”


  15. Bryce says:

    You guys are having way to much fun with rubber.
    Love it.

  16. kuhltwo says:

    This beats potato guns. I wonder where he gets the rubber bands?

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s


Get every new post delivered to your Inbox.

Join 96,732 other followers