{"data":{"make":{"id":"696882","created":"2023-03-02T10:38:40.922543+00:00","edited":null,"deleted":null,"isMake":true,"printer":{"id":"20","name":"Creality Ender 3","__typename":"PrinterTypeType"},"parent":null,"author":{"id":"409817","handle":"GabrielMurill_409817","verified":false,"dateVerified":null,"publicUsername":"Gabriel Murillo","avatarFilePath":"media/auth/avatars/4e/4e7f28d3-8944-4077-a51d-782df7b77bca.jpeg","badgesProfileLevel":{"profileLevel":11,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"images":[{"id":"565750","filePath":"media/comment_images/57/edd277-139a-4b87-82b1-5faaf52da2bb/20230302_023451.jpg","rotation":0,"__typename":"CommentImageType"}],"mentions":[],"text":"Imprim\u00ed los 3 modelos siguiendo las indicaciones para el Z Seam y salieron perfectos.\nEstoy impresionado por lo fuerte que suenan, de verdad son muy \u00fatiles!","rating":5,"likesCount":1,"liked":null,"membershipAgeMonths":null,"modelData":{"model":{"id":"394669","ratingAvg":"4.9411764706","ratingCount":221,"__typename":"PrintType"},"__typename":"ModelDataType"},"membershipTier":null,"__typename":"PrintCommentType","model":{"eligibleForNomination":false,"id":"394669","slug":"loud-and-compact-whistle-for-your-keychain","name":"Loud and compact Whistle for your Keychain","authorship":"author","club":false,"excludeCommercialUsage":false,"price":null,"eduProject":null,"ratingAvg":"4.9411764706","myRating":null,"ratingCount":221,"description":"

Update 2023-02-15:

I have also designed a gift and storage box for these 3 whistles, which you can find here.

Summary

I needed a load and compact whistle to fit my keychain and couldn't find any design which fits my requirements. What I found was either too bulky, too fragile, or too quiet.

So I made my own design, and this are the key advantages:

extremely loud for it's size,
very compact, only 5 mm thick, 14.3 mm wide and 48.9 mm long,
double tone, sounds similar to a referee's whistle,
easy to blow,
sturdy and hard to destroy,
lean design,
easy to print,
fast printing (< 20 min), little filament required (approx. 2.5 grams).

And I added 2 more variants of this whistle:

an even slimmer version with 4 mm thickness that fits in your wallet,
a variant with a lower pitch.

How to print:

Use a line width of 0.4 mm and a layer height of 0.2 mm, 4 top layers and 4 bottom layers.

The whistle requires correct positioning of the Z-seam - it shouldn't be placed in the narrow air passages inside the whistle. The Z-seam should be positioned as shown in the image above (the white dots represent the Z-seam). Use the \u201cZ Seam Alignment: User specified\u201d option in Cura or the \"Seam Painting\" option in PrusaSlicer to achieve this.
If you are using Cura I recommend V4.13.1 for this design as Cura 5.x still has problems placing the Z-seam.

Print slowly to achieve sharp edges.

If you want a multicolor print as in the picture above, change filament at the desired height.

Do you like it?

If you have printed this design and you like it, I would be happy if your make is uploaded.

Please also check out my Steam Train Whistle and my Valentine Whistle:

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Loud and compact Whistle for your Keychain

Loud and compact Whistle for your Keychain

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