Mini Siege Engines

Ah catapults - a classic and exciting engineering project that introduces students to fundamental ideas in physics and engineering like energy transformation, trajectory, and structural strength.


Step 1: Simple Catapult

Mini Siege Engines
Mini Siege Engines
Mini Siege Engines
Mini Siege Engines
Mini Siege Engines
Mini Siege Engines
Mini Siege Engines
Mini Siege Engines
Mini Siege Engines
Mini Siege Engines
Mini Siege Engines
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To fire:

  • Load the projectile
  • Firmly hold down the front of the catapult
  • Pinch the cube under the basket and pull down, then release

    Step 2: Leverpult

    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
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    To fire:

  • Load the projectile
  • Hold down the base from inside the support structure
  • Firmly and quickly press on the lever. Do not strike the lever with a fist or other object or the hinge may break

    Step 3: Slingshot

    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines
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    To fire:

  • Load the projectile
  • Firmly hold the front of the slingshot, or grasp the front of the slingshot as shown in the video
  • Pull back on the sling and release

    Step 4: Advanced Ideas

    Mini Siege Engines
    Mini Siege Engines
    Mini Siege Engines

    A straightforward advancement of the Catapult project is to add two baskets instead of one.

    A wacky design, dubbed the Confused Catapult, incorporates two catapult arms onto one frame. Making catapult arms of different lengths allows the user to enjoy a wider range of trajectory options.

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