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Try this module if you need to toss a small object. It uses a rubber band to create a sudden movement.

The Popper

I used this module to make a cardboard cat jump (or ) out of a little box. I had to experiment with the programming to make the motor come on in the right direction and for just the right amount of time. - Margaret
stuff you need

Use these parts...   ...for these steps.

See all Motion Modules

What else
See how some 4th graders designed machines to tell stories.
Read about what inspired the cat in the popper..

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