Home Dancing Water Project
Home Dancing Water Project
(OP)
I have been thinking about making a jumping water device in my yard. Example:
https://www.youtube.com/watch?v=VhLl9-njCqA
Any ideas on what it would take to do this?
https://www.youtube.com/watch?v=VhLl9-njCqA
Any ideas on what it would take to do this?





RE: Home Dancing Water Project
A cheap PLC, my favorite is a CLICK!.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Home Dancing Water Project
One thing to note with the EPCOT video that they don't show... how it's actually done. While the nozzles are required for a solid arc, what you don't see are how they stop the flow. Most would think they turn off the water, but if you do that you get "drooling". They actually use a water knife to cut the flow, essentially diverting the flow internally with another blast of water until another arc is desired.
Dan - Owner
http://www.Hi-TecDesigns.com
RE: Home Dancing Water Project
The laminar flow nozzles are pretty much just a bundle of drinking straws in the flow path, no?
Agree that the big challenge is the clean shut-off. Otherwise you won't get those nice "chunks" of water.
RE: Home Dancing Water Project
Also, the nozzles eventually wear out. When the display was first installed, the squirts were nice and tight. Years later, the ends were very loose/blobby, and there was quite a bit of splash outside of the main squirt. Notice in the video how the squirt barely makes it over the kid's head before turning into individual blobs... those nozzles badly need replacement. A new nozzle will make the squirts look like a solid rod from launch to landing.
Dan - Owner
http://www.Hi-TecDesigns.com
RE: Home Dancing Water Project
https://www.youtube.com/watch?v=X14fPK6kE8s
They claim that using stainless steel makes the nozzles less prone to corrosion and wear.
TTFN
I can do absolutely anything. I'm an expert!
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers
RE: Home Dancing Water Project
He put 7 tubes into a piece of 1" tube and then they cold drew the whole bundle to compact it to about 0.75" OD. The feedback was that they worked great.
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P.E. Metallurgy, Plymouth Tube
RE: Home Dancing Water Project
Standard DIY construction seems to be a couple layers of Scotch Brite scouring pad material pad as a flow distributor, followed by a bundle of drinking straws completely filling a section of PVC pipe, retained by a piece of fine net or mesh. Seem to work pretty well, although the Scotch Brite pad would of course be a filter for any and all crap in the water stream- you'd need a filter upstream to have a hope of having it last in a recirculated fountain.