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Make a Miniature Ballista - Part 2

 

In this part of the tutorial we glue the ballista together.

Part 1 of this tutorial is here

 

 

Glue together the first five pieces in order. 1,2,3, 4 and 5. You can't see 4 in this picture it is an upright just like 2.

 

 

 

 

 

 

 

 

Now lets put the runway on. These are pieces 6,7 and 8.

 

 

 

 

 

 

 

 

 

 

Now let's build the torsion support system. These are eight parts. The red lines show where they are and from left to right they are parts 9,10,11,12, 13, 14, 15 and 16.

Notice the V shaped notches are facing us. That orientation is important.

 

 

 

 

 

 

Now put parts 17 and 18 right on top of all those pieces.

 

 

 

 

 

 

 

 

 

 

 

Now let's install the trigger. Look to the template piece to see where the toothpick mark is on the trigger. Pre make that hole then pin it like this into the Ballista.

That toothpick is about a half inch up from the very end of the ballista.

 

 

 

 

 

 

NextOkay! It is built. Now let's wind and add the torsion springs for the power

 

 


 

Pitsco Laser-Cut Basswood Torsion Ballista Kit (Individual Pack)

  • Kit provides students in grades 6-12 a hands-on activity to build a model ballista that demonstrates the scientific concepts of force, tension, torque, simple machines, and Newton's laws of motion
  • Includes laser-cut basswood parts for assembling the model ballista using glue and screws
  • Styrofoam balls provided for launching in experiments in projectile motion and potential and kinetic energy
  • Reinforces technology, engineering, and math concepts as students build and experiment with model ballistas
  • Finished ballista measures approximately 3-1/8 x 7 x 6 inches (H x W x D)

 

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