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The pyramid slingshot harnesses the potential energy of stretched rubber bands and the structural strength of combined triangles.
The construction steps are simple, yet the final result is a strong and high-performing projectile launcher!
Click to expand
Tools and Materials
The Engineering Creation Kit has everything you need for this project and many more from STEM Inventions, or get the supplies in bulk:
Tips and Troubleshooting
If the slingshot isn't firing far, then...
Make sure to grasp the back of the cup with your fingertips. Don't try to grab in your fist.
Pull back the cup so the rubber bands are stretched evenly.
If one of the dowels breaks, then...
Reinforce it by overlapping 2 or more new dowels like a splint.
If the rubber bands rip through the tape, then...
Reattach it with 2 or more layers of tape.
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