Turbo Whistle - seriously loud!

Turbo Whistle Keyring A compact, functional keyring whistle designed to look like a turbocharger (or one half of a turbocharger). The whistle produces a loud, sharp sound while keeping a small and portable form factor.  It works on the same principle as a air raid/tornado siren, with spinning blades and small air openings.   The sound created by the whistle increases in pitch as the inner impeller spins up making it sound like a real turbo! The distinctive 'STUTUTU' sound can be made by blowing into the whistle to spin it up, them sucking air back through it in short bursts by blocking the opening with your tongue. This can take some practice.   The sound level may vary with different factors such as filament quality, support removal, blow strength etc.   Printing: Supports are required The print profile has 0mm top support interface spacing to insure a smooth surface in the turbo housing.  Do not change the laver height or quality settings as this may affect functionality Assembly: The whistle is assembled by placing the impeller on the base, then clicking this into the main housing making sure to align it properly.   Boost MeThere is a lot of work involved in designing and prototyping something like this, if you like it please consider giving me a boost. thank you MembershipIf you would like to sell any of my models, please sign up to my license membership.