Unfortunately my train horn piano project is now over and done. The train horn piano was destroyed in a shed fire last Autumn, it’s beyond any kind of recovery and I have no intention of building another one mainly due…
Continue ReadingPneumatic day
I’ve now got all the parts for the Train Horn Piano and am finalising the build. The horn rack is assembled, all my compression chambers are assembled with the diaphragms cut and inserted, all that’s left to do now is…
Continue ReadingOverblowing
Further progress is being made with the train horn piano. I’ve cut a pipe for the low E2 and for the E3 an octave above that and tested these out with the new battery and rig. Unfortunately, my E2 is…
Continue ReadingBuilding the frame
My train horn piano needs a frame on which the horns and other components can sit. I’ve grabbed some lengths of slotted angle iron and given them a lick of yellow Hammerite. I have a 12v 110Ah lead acid deep…
Continue ReadingFirst successful air horn test!
I’m very pleased to have successfully sound tested my prototype air horn / train horn for the first time! Using a (poor quality) test battery, we were able to get the air tank up to 40PSI, the hardware is rated…
Continue ReadingAir Horn Piano control module
I’ve mostly completed the “brain” for my air horn piano! The hardware consists of a 12v fuse box, 12v USB sockets, Raspberry Pi, adjustable 12v to 5v step-down regulator, and 16-channel 5v relay board. If you are reading and considering…
Continue ReadingAir Horn Piano
My project, working title “Air Horn Piano” is something I’ve pondered on and vaguely planned for many, many years now. I’ve recently come across a 3D printable train horn design which can be easily tuned by adjusting the length of…
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