March 14, 2026
Description
This novel emergency whistle is integrated with a clip. It easily clips on & off your backpack or keychain, without fiddling with the key ring or a separate clip.
There is a small (0.2 mm) gap in between the two sides that allow the clip whistle to slightly open for the clip action; the small gap doesn't affect the whistle sound or loudness.
It is loud, with two tones around 2.6 kHz for optimal range
With a rounded, comfortable mouthpiece
2.2 gram / 0.08 ounce
Specifically designed for 0.4 mm nozzle
Recommended 0.2 mm layer height
No supports required
PLA works great, many materials should work
About 6 minutes print time
It might require a light twist or the edge of a bed scraper to break the sides apart.
For a similar clip whistle in a key shape with a larger hole see:
License:
Creative Commons — Attribution — Noncommercial
11
Redlow
