whistling air engine drive with mouth piece
thingiverse
inspired from a dream. it's pretty easy to put together and you might need to play with the way you print these files, I had to use pipe cleaners from hobby lobby to clean out the inside where the free piece moves (inner track). Also no supports for the two big side pieces and piece where you blow. I used super glue and very carefully put the two sides together practicing spinning the inner piece freely threw. then filed the blowing mouth piece until fit. if you need help comment If I messed up let me know I'll fix it. thanks
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