thingiverse
3x engine spinning rocket.
Instructions
Print this flat side down, but fly it flat side up. Use at least 10% infill. Using 3x Estes B6 engines, the spinner flew to about 30 feet high and landed just feet from the launch pad.
Using 3x Estes C6 engines, the spinner flew to about 50 feet. I was able to determine the spinner was rotating at more than 14,000rpm. The cetrifugal force was so strong that the rocket engine combustion gases were forced to burn through the side of the rocket engines, causing melting of the spinner itself.
Direct link to the original creator's page
Click the "View on thingiverse" button above to visit the original model page on thingiverse. You can download the STL file directly from the creator's page for free.
This STL file is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
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Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer. Check the license on the original thingiverse page to see if modifications are permitted by the creator.