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Need help to build a ChooChoo bike whistle (lemmy.world)
submitted 5 months ago by Burn1ngBull3t@lemmy.world to c/askelectronics@discuss.tchncs.de
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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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[-] m0darn@lemmy.ca 1 points 3 months ago

I work in industrial automation and have a background in pneumatics. I think you'll be surprised at how inefficient pressurizing/moving air is. I think the most practical solution (if you can call it that) is likely carrying an air reservoir that can be pumped up with a bike pump, and having a valve to trigger the whistle. There isn't really a safe way to carry compressed air on a bicycle because it's inherently dangerous to transport. There are lots of ways to make an unsafe air reservoir for example what Chris Notap on you tube does.

this post was submitted on 07 Jun 2024
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