STEMFIE Desktop Catapult

by Stemfie3D · Construction Sets

389 Downloads

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308 Makes

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 this project includes. Assembly instructions: stemfie.org/sps-000003 Assembly video: youtu.be/8AIVcwuRmV4 STEMFIE news 👉 X.com/stemfie3d STEMFIE Projects STEMFIE Tools <img src="https://ma

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