The STEMFIE Desktop Catapult is perfect for shooting ping-pong balls or crumpled paper. The ball-holding beam moves using the energy stored by two rotor springs. To arm this catapult, you rotate the beam until it locks into place held by the trigger. You can shoot ping-pong balls into cups or hit and flip the STEMFIE shooting target, which is included in this project.
Assembly instructions: https://STEMFIE.org/SPS-000003
Assembly video:
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STEMFIE Desktop Catapult
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Creative Commons Attribution
You can distribute, remix, adapt, and build upon the material in any medium or format, as long as attribution is given to the creator.
Licensed under CC BY
Files Included
4 downloadable files:
SPS-000003_-_Desktop_Catapult_-_BUILDPLATE__gray__-_Springs__Trigger__Screws__Beam__Knob_-_stemfie.org.stl
STL Model
SPS-000003_-_Desktop_Catapult_-_BUILDPLATE__orange__-_Nuts__Washers__Sign__Holder__Target__Shafts_-_stemfie.org.stl
STL Model
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Downloaded: 45 times
Downloaded: 45 times
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