Echo Whistle

For the loudest results, print the whistle on its side. This whistle is designed for those who want an easy, compact, and loud whistle for any situation, ranging from survival to refereeing.

I tested this print using three different filament types: Wood, PLA, and ABS, all working perfectly. ABS was the strongest, surviving rigorous tests including being thrown, run over, and exposed to water. The Wood filament was more brittle but still passed all tests except being run over. Finally, PLA survived all tests with only minor damage.

Included in the downloads are two different sizes for you to choose from—one with a lower tone and one with a higher tone. For the loudest effect, I suggest covering your ears and blowing as hard as you can, although the whistle will work with less force as well. I hope you enjoy this print as much as I did!