Super Loud Portable Siren

Build Tutorial Here

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PC Gamer:
“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”

Why Build a Siren?

I made a VERY loud portable motor-driven siren because:

  1. I had some spare RC parts, I’m a big fan of repurposing functional bits rather than throwing them out.
  2. I just got my first new 3D printer, a Prusa
  3. I wanted to make something cool.
  4. And finally I saw a picture of an air raid siren, I thought, “I can make that “

The result? A ridiculously loud and fun build with surprising practical applications. While this is far from a “refined” design, it’s proof of concept—and with a little know-how in electronics, some soldering skills, access to a basic 3D printer, and a few RC components, you can make one too.

The overall shape of my design was influenced by a picture of a massive Cold War-era siren, which I later discovered to be an ACA (Alerting Communications of America) Allertor 125. Its bold, retro aesthetic and functional design inspired me to create this scaled-down, portable version for the project.