Process of Rain Drops

Our initial thought was to simulate the rain drops by the movements of wood stick by solenoids by the movement and maximum distance of that pattern is not an ideal choice for us. 

Prof. Daragh suggested that we might need to use a servo or stepper so that we could enlarge the distance of the wood stick for that movement. But this also means that the movement is going to be rotating and tilting within a range of angles, which didn't seem like an effect that we would  love to work with.

Unfortunately we gave up on that idea, but I hope I could come up with a better solution that both generate a vertical movement. For instance, when writing up the documentation I'm thinking about using a hobby motor to control a little stick that is hung on a thin rope.