You have a few options for making your flying saucer. Paper plates, pie tins, frisbees, hubcaps, and more can be excellent starting points.
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Now, you can test out your UFO! As you rotate and tilt it, you'll hear the different pitches, see the varying light colors, and the overall frequency of the cycle with change! |
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For the tractor beam that's used for farm animal abductions, you can use a clear plastic drinking cup. By scuffing up the inside of the cup with some sandpaper, you can create a nice diffusion that will showcase the great lighting effects! |
Land the UFO on your tractor beam to see the great lighting effect!
Or, you can 3D print the model linked below. You'll need some 2.5mm nylon screws and nuts to fasten the model halves together.
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You can also find some excellent plastic model kits at hobby shops and online. Then, you can use your imagination and creativity to modify the model kit to fit your Circuit Playground Express and battery pack.