Need help to build a ChooChoo bike whistle (lemmy.world)

submitted 3 weeks ago by [email protected] to c/[email protected]

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Hello !

I recently 3dprinted a train whistle that usually works with a mouthpiece. It works by simply blowing air in it.

However, I would like to convert it to a whistle for my bike. For that I would need a system that could blow air in it, instead of myself, with the press of a button.

Any idea on what i could start with to build that ? It would be best if the circuitry was quite compact too.

Thanks !

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[-] [email protected] 5 points 3 weeks ago

My first thought for a compact, air-blower would be the inflater for air mattresses. They're already fairly small, have a high flow rate, and exist in forms which accept 12 VDC.

Another option is a small tank of compressed air, but that option is either heavy (steel tank) or stores air at inefficient, low pressures (plastic tank).

I suppose a third option is to rig a can of air-duster so that it blows through the whistle. That would be mechanically simple to implement a solenoid to press the valve, although there is a small environmental cost to using cans of air-duster regularly.

[-] [email protected] 4 points 3 weeks ago

You could base your design off my favorite bike accessory, the Airzound bike horn

[-] [email protected] 1 points 2 weeks ago

Install it with the mouthpiece facing the wind

[-] [email protected] -1 points 3 weeks ago

🙌

this post was submitted on 07 Jun 2024

9 points (90.9% liked)

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