PocketRiot - Small, Loud Whistle for Keychain

I was at a protest and realised that I'd like to show my support by making myself heard, but was a bit shy when it came to using my voice. Looking around I noticed that other people seemed to have the same problem. So I decided to bring a whistle the next time. And I also wanted to bring plenty to go around for other people, so I designed a somewhat minimalistic whistle that still is loud enough.

I settled on the 2.2kHz design as the standard. I also added different variations (1.5kHz - 3.5kHz) and different diameters as a separate print profile.

Before printing you should check the alignment of the bridges. They should run perpendicular as shown in the picture below:

If it's not aligned like that, you need to adjust the “Bridge direction” in the Settings:

You can also carry it on your keyring, backpack or a necklace for emergencies.