Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Ernst Dinkla 
<E.Dinkla@c...> wrote:
> Gallon bottles to make it a sensible modification ? 
> Ernst

I could build a gallon sized system that would give nearly a constant 
pressure. Atmospheric changes are bothering my smaller system at the 
moment. If you take a few moments to equalize the air pressure to the 
outside (the bottle) pressure, and the temperature in the room doesn't 
change too much, it works very well. It might even be easier to bulid 
in gallon plus sizes.

A micro pressure sensor and small liquid pump might be a better idea, 
also might be easier to make.