Water Rocket Launcher
Making water rocketry universally accessible through 3D printing
Snap-fit assembly. No adhesives. Portable. Worldwide compatibility. Free forever.
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Link to Instructables.com
Full written and video instructions to build and set up the launcher. Updated to current Version 1.4. Featured Instructable August 2023.
Water rockets, also known as water bottle rockets or soda bottle rockets, use compressed air to force water out of a bottle to launch homemade rockets high in the air. In contrast to chemical model rocketry, water rocketry is cheap, without fire hazards, and typically allowed in urban areas. They are great for summer fun, STEM learning, class projects and science fairs.
This is a water rocket launcher system built from 3D-printed parts and readily-available off-the shelf components. No glue or adhesives are required and PVC pipes are entirely optional. If you have access to a 3D printer and a bike pump, you can make your own water rocket launcher.