[Robotgroup] Cool water printer

[Blank James]

There was a lot of discussion about this tech last year on the Make blog:
http://blog.makezine.com/archive/2007/01/jeep_waterfall.html

According to one of commenter in the link; Stephen Pevnick developed and 
patented the technology in the 70s-80s.
http://www.pevnickdesign.com/

Lately I have been thinking about making a bubble display like one of these.

James D.


TomD wrote:
> The trick is, finding valves that don't distort the water flow when they 
> change state.
> you need something that has a very smooth flow when on, or you won't get 
> the nice water columns.
> Putting a long pipe after the valve is going make for ragged turn off 
> and drips.
> 
> They may have a large manifold just above the valves that is a room 
> pressure, so the flow is gravity
> feed only.
> 
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