Multi tone whistle

by jag, published

Multi tone whistle by jag Feb 16, 2012
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Multi tone whistle by jag is licensed under the Public Domain license.

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This is an openscad script that can generate a whistle with an arbitrary number of notes.
It isn't quite tuned right. There is a function in it to automatically calculate the length based on the note but it seems to be off by a bit.
It whistles though!


You can print the two note version in the STL that I have uploaded or you can generate a different whistle by editing the scad file.

There is an array called "notes" that contains a list of of notes. They are specified as the number of half steps from middle C.
Once that array is set up, you specify how many notes there are in the array in num_notes.

You can also adjust the parameters of the whistle shape by editing the constants at the top of the file.

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Printed one at 0.1mm last night and scaled it down to reduce printing time. Works great and very loud!

Works great! Thanks for the parametric design :D

Very nice. My daughter really like the "train" tone it produces. Thanks!

Glad she likes it!