I have seen the future, and it's this 3D-printed air raid siren honking its baleful tones over my neighbourhood as the waters rise
It's a cool project, anyway, and I'm all down for that. A combination of cheerfully-coloured 3D-printed components and RC ...
Hackaday6y
2018’s Hottest Accessory Is A 3D Printed Air Raid Siren
The rotor and frame for the parts are 3D printed, and held together with a ... We’ve seen air raid siren builds before, too – like this sturdy wooden unit.