Was wondering if any one else has come across this or can provide any thoughts.
I am trying to make a small desktop version of something like the video below.
Nothing as fancy but i would like to use 32 water streams to create a desktop clock. and the device will be about 30 x 30 cms.
The only difficulty is how to control the water streams
- using a jet / pump would not work, first it would need to be able to be switched on and off very quickly and all 32 jets would need to be highly accurate and repeatable.
- using standard solonide valves for small stream of water is not accurate due to the time taken to start stop flow and the influence of surface tension and acceleration
so my thought is to create a system were the streams are constantly falling / circulating and then using a system of solenoids to push a surface to divert the water away
thing like this,
that can be interlinked to give this
So as the solenoid pushes forward it divers the stream over the opposite lip where it drains back to the bottom vie the frame.
When the solenoid is pulled back the water drops though the middle slit.
My problem at the moment is getting the nozzles to produce a clean laminar flow.
Working out how to get the solenoids to operate at 160HZ. In theory it will take water about 0.2 seconds to fall 30 cm's and if i want a "display resolution" of 32 X 32 it will need to be able to turn the stream on and of 160 time per second It may be at this scale only patterns can be produced but i would like to see if i can get get it so i can make this into a digital clock display.