WHISTLING FLOATING ROLL

Hover & Whistle RollHave you ever thought that an empty filament spool could become a scientific toy? With this project, we turn a used spool into a fun device that combines sound and movement using the physics of air! How does it work?We 3D print three components: • A small whistle • An expansion cone to direct airflow • A base with holes to create a “hover” effect Simply attach a balloon to the top. When inflated and released, the air creates two effects: 1. The whistle makes a sound as the air flows through it. 2. The air escaping from the holes underneath reduces friction with the ground, making the spool glide smoothly like a mini hovercraft! This project is a great example of how air pressure differences and airflow can be used in a fun and creative way. Perfect for teaching kids (and adults!) scientific concepts through play.Give new life to filament spools and discover the fun side of science! Boost MeIf you enjoyed this project and found it inspiring, your support ❤ will help