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Backyard Slingshot



Slingshots have been making us smile for decades. Well, a couple summers ago I had the chance to use a water ballon launcher and it was pretty impressive. The issue was that you needed three strong (and willing) people to operate it. I decided to build a base for this launcher so that it could be operated by only one person. Plus this can be used for launching a variety of things. We decided to make a pyramid of Homer buckets and try to knock them over with a small soccer ball!

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  1. Project Steps

    1. Step: 1

      Start by downloading the plans for this project and cutting down the boards as shown in the cut list.

    2. Step: 2

      The base is constructed out of pressure treated 2x4s and gets assembled with 2-1/2" exterior wood screws.

    3. Step: 3

      The deck is made up of 5/4 x 6 pressure treated deck boards and secured with 2-1/2" exterior wood screws.

    4. Step: 4

      The arms get a notch to accept the launcher and then get clamped in place before a 3/8" hole get drilled through the side and out the arm.

    5. Step: 5

      Insert the 3/8" x 3-1/2" carriage bolt and secure the arms with washer and wing nut on the inside.

    6. Step: 6

      Install a hook at the appropriate height for your launcher on each arm. Then route the launcher through the notches and start launching things. #launchallthethings

Comments (3)


  • What water balloon launcher did you use for this?
    By biglosman, on May 22, 2017


  • What strength water balloon launcher do you recommend?
    By xrcise02, on January 17, 2019

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Backyard Slingshot

by Rogue Engineer
Apr 17, 2017

Slingshots have been making us smile for decades. Well, a couple summers ago I had the chance to use a water ballon launcher and it was pretty impressive. The issue was that you needed three strong (and willing) people to operate it. I decided to build a base for this launcher so that it could be operated by only one person. Plus this can be used for launching a variety of things. We decided to make a pyramid of Homer buckets and try to knock them over with a small soccer ball!

Project Steps

  1. Step: 1

    Start by downloading the plans for this project and cutting down the boards as shown in the cut list.

  2. Step: 2

    The base is constructed out of pressure treated 2x4s and gets assembled with 2-1/2" exterior wood screws.

  3. Step: 3

    The deck is made up of 5/4 x 6 pressure treated deck boards and secured with 2-1/2" exterior wood screws.

  4. Step: 4

    The arms get a notch to accept the launcher and then get clamped in place before a 3/8" hole get drilled through the side and out the arm.

  5. Step: 5

    Insert the 3/8" x 3-1/2" carriage bolt and secure the arms with washer and wing nut on the inside.

  6. Step: 6

    Install a hook at the appropriate height for your launcher on each arm. Then route the launcher through the notches and start launching things. #launchallthethings