Greetings all, My project has a "time machine" (H.G.Wells) for the robot(Steam Punk) to use and I would like it to engage levers to activate it. These will turn on plasma lights and a revolving day month, and year. Its a mechanical(an old copper gasoline gallon indicator). Now here's the question:
How can I create a mechanical sound to simulate speed, much like a jet engine? I know I will use a high rpm dc motor and attach the shaft to a..................
I could use a speaker but the mechanical device would be a more realistic sound. Suggestions would be greatly appeciated. The maximum height for it to fit into the "time machine" is 2.5 inches.
I know everyone is concentrating on their own projects and any suggestions however weird would be awesome.!