Compact Survival Whistle
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A small but loud whistle for survival or rescue situations.
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Model information
- Source
- Printables
- Category
- Outdoor Sports
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
I wanted to model and print a compact, rugged, and loud whistle for emergency survival or rescue use. I was particularly interested in a whistle that could be taken SCUBA diving and then used for signaling a watercraft on the surface.
This whistle is:
- Compact – At only 50x25x6 cm (about 2x1x0.25 in), it may be easily carried in a pocket or pack or secured with a lanyard using the integrated loop.
- Rugged – Its thin profile and integrated internal supports make it fairly crush resistant, even when printed with PLA.
- Loud – I measured the output at 110+ dB.
It also can be printed quite quickly and inexpensively. I printed it with the largest (top) face down without supports. To increase strength and prevent cracking at the higher pressures associated with diving, I used 100% infill.
The design is inspired by a popular commercially-available survival whistle intended for marine use.