On Fri, 8 Oct 2004 16:45:26 +0100, "SkyCatcher"
wrote:
I would like to create a water jet feature in my pond. The sort of thing
that sqirts water in an arc over 10ftfor about 2 seconds and then one from
the other side does the same.
You can approach this with a dedicated computer and an I/O card hooked
to a couple of solenoids. Trivial, really. A program in BASIC and away
you go.
But I would think you want a simpler way. Without thinking too deeply
about it, two solenoids coupled to multicontact delay off relays would
do it. One solenoid turns on and opens a valve. It times out after [2]
seconds, turning off the flow and triggering the other delay relay
which turns on the other solenoid which turns on the other jet. And so
forth.
It can also be done with fluidic logic valves which would be self
activating. You build a simple flip-flop circuit as described with a
certain amount of delay due to lines and resevoirs.
Hillarity ensues.
--
Crashj