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STEMFIE Desktop Catapult

The STEMFIE Desktop Catapult is perfect for shooting ping-pong balls or crumpled paper.

paulo-kiefePaulo Kiefe
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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: https://youtu.be/8AIVcwuRmV4

SPS-000003 - Desktop Catapult - BUILDPLATE (white) - Beams, Target base - stemfie.org.3mf

3mf - 1.51 MB - 07/15/2022 at 13:56

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SPS-000003 - Desktop Catapult - BUILDPLATE (grey) - Springs, Trigger, Screws, Beam, Knob - stemfie.org.3mf

3mf - 1.41 MB - 07/15/2022 at 13:56

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SPS-000003 - Desktop Catapult - BUILDPLATE (gray) - Springs, Trigger, Screws, Beam, Knob - stemfie.org.3mf

3mf - 1.41 MB - 07/15/2022 at 13:56

Download

SPS-000003 - Desktop Catapult - BUILDPLATE (orange) - Nuts, Washers, Sign, Holder, Target, Shafts - stemfie.org.3mf

3mf - 1.49 MB - 07/15/2022 at 13:56

Download

SPS-000003 - Desktop Catapult - Instruction URL (stemfie.org).stl

Standard Tesselated Geometry - 230.45 kB - 07/15/2022 at 13:56

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