Digital HoraGuy

I created a conch-shell horn that makes a loud booooh sound, using a 3D printer

It is an instrument similar to the traditional Japanese instrument "horagai" (conch shell)

Its name is “Digital Horaguy,” but the word digital doesn’t have any special meaning. It just felt right.
If I had to explain it, I’d say it’s “digital” simply because it isn’t a natural conch shell—an analog object from nature—but something generated from the digital world, designed in CAD on a computer.
There’s no reed like you’d find in a simple whistle. Just like a traditional conch horn, you produce sound by vibrating your lips against the mouthpiece.
In principle, it’s a brass instrument, the same mechanism as a trumpet.
It takes a bit of practice, but even an amateur like me was able to make it sound.
https://x.com/degochiyakuri/status/1844747409844486275
Give it a try—you might surprise yourself.
The filament I recommend is either PETG or PLA.
Using a Bambu Lab P1S 3D printer with PETG filament at a 0.28 mm layer height, the print takes 7 hours and 39 minutes.
With PLA filament, it finishes in 6 hours and 27 minutes

This model includes supports so no support setup is required - you just print it

When printing is complete, remove the thin round part and the three sharp support pieces at the bottom of the model.
Two types of mouthpieces are available. Attach the mouthpiece of your choice to the digital Horaguy.
 

Added on February 28th (Japanese only, sorry)

horaguy_type08_2_set_6_29.3mf includes the conch shell and mouthpiece as a set, and can be printed with support parts.

horaguy_type14_top.stl and horaguy_type14_bottom.stl are models where the conch shell is divided into upper and lower sections. After printing, they are designed to be easily glued together.

These models are convenient for creating larger conch shells.

horaguy_type08_2.stl, horaguy_type08_2_utakuchiL.stl, and horaguy_type08_2_utakuchiS.stl are models without support parts.

Please use these when printing independently to suit your specific environment.

If a user scales the conch shell model down to 70%, the part of the mouthpiece where the mouth is placed becomes too small, making it difficult to play.

utakuchi_L_0p7.stl and utakuchi_S_0p7.stl are models with an enlarged mouthpiece section. Even when the main model is scaled down to 70%, the diameter of the mouthpiece opening is designed to remain the same as that of the unscaled model's mouthpiece. Please use them as needed.