Summary

THIS IS JUST A RE-UPLOAD

The original author is Jonas Daehnert, and I got the models from Printables, which is where they were originally uploaded. If you like it, please support the author.

El autor original es Jonas Daehnert, y los modelos los saqué de Printables, que es donde fueron subidos originalmente. Si te gusta, por favor, apoya al autor.

About the Whistle:

With a thickness of only 3 mm, the flat whistle fits in any wallet. Despite its flat design, it's really loud. It is also possible to wear the whistle as a chain or attach it to a keychain.

Sound:

It has a clear double tone. Due to the size, the sound is quite high. But it is enough to get attention. An audio sample is attached.

Dimensions:

43 x 22 x 3 mm

(additional variants 43 x 22 x 4 mm or 43 x 22 x 5 mm)

How to Print:

I recommend using a nozzle size of 0.4 mm and a layer height of 0.2 mm. Don't use supports. It's very important that the first layer is perfect, because the wall thickness at the top and bottom is only 0.6 mm. If your printer is well leveled, however, there should be no problems.

Troubleshooting:

If your whistle doesn't work properly or you have problems printing a smooth top surface, make sure the layer height is set to 0.2 mm. This ensures that the bottom and top surfaces are printed at the correct thickness. You can also experiment with the perimeter value if there are problems with bridging. Any value between 2 - 3 is recommended. And last but not least, the solid top/bottom layer should be set to at minimum 5 each.

Print time:

~ 10 - 20 min (depending on your settings)

Update:

(2023-07-05) - Uploaded an optional 5mm version of the whistle. The sound is a bit less brilliant, because the cavities have almost twice as much volume. But that's also why it's the loudest of all flat pocket whistles.
(2023-06-21) - After some feedback, I updated the 4 mm whistle. The bar for the keychain attachment has become slightly thicker. It looks more balanced and increases stability. The old version remains for those who prefer the thinner bar.
(2023-06-07) - Uploaded an optional 4 mm version of the whistle for those who like it thicker and even a bit louder. To maintain the comfort, I added a bevel.