Air power research
My second prototype air powered is completely built, but until I can make a more precise rotary valve, I don't feel like it is ready to demonstrate.
Your contributions are greatly appreciated at this time, as otherwise I will have to continue to fund my own research. Since I can barely make ends meet as an instrument maker during the winter, it may be several months before I have the tools I need.
I do enjoy making wooden flutes and drums, but would rather be working on developing a low cost air motor.