Bottom Feeder Question.

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vereybowring

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Mar 7, 2011
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A Cave In Stirling, Scotland.
I have been considering the different ideas people have had for bottom feed juice boxes and have a question relating to it.

For hygiene reasons a needle meant for syringes is a good choice for the attie end and people tend to squeeze their bottle or have a pump bottle.

I think my idea might work but want to throw it open to all.

If you got a fine enough needle say 27 Gauge, and fitted this to the atomizer end, and obviously a wider tube for the battery connection, would Bernoulli's principle capillary action come into effect when you inhale and heat the atomizer ?

If it did you would not need to pump at all as the fluid would naturally rise up the tube and feed the system.
Trees use this to pump sap up their height using the evaporation effect from their leaves after all.

I am just not sure of the needle size you would need for this to works.

I just hope there is some smart chemistry/physics/biology type person on these forums that could have a think about this as I propose this would make bottom feeding much easier and cleaner (should be no flood risk after all).

Answers not on a postcard, here will do just fine !:vapor:
 
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squirrel64

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Oct 27, 2010
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Va Skyline Drive Shenandoah River
I have tried so many top and bottom feed experiments it's crazy. I t basically comes down to how much juice is in the bottle. The less juice the more problems. Really the only thing that came close to auto feeding was an in line check valve set into the equation somewhere. You can place the check valve in different points in line but there is also a pressure differential to deal with. There has to be outside airflow coming in from somewhere. Which sometimes involves a 2nd check valve. This is the closest I have come to complete autofeed but way too bulky. I tried this on top and bottom. Checkvalve and airhole



Edit : I have not read on what you mentioned but might have to take a look.. Wish I was a little smarter in this area :blush:
 
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Para

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Aug 15, 2010
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I have tried so many top and bottom feed experiments it's crazy. I t basically comes down to how much juice is in the bottle. The less juice the more problems. Really the only thing that came close to auto feeding was an in line check valve set into the equation somewhere. You can place the check valve in different points in line but there is also a pressure differential to deal with. There has to be outside airflow coming in from somewhere. Which sometimes involves a 2nd check valve. This is the closest I have come to complete autofeed but way too bulky. I tried this on top and bottom. Checkvalve and airhole

You don't need a 2nd check valve; just provide a means for the air to "rebalance" itself between uses. Works fine with a single valve.

fonovv1.jpg
 

Para

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Aug 15, 2010
2,812
1,180
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I have been considering the different ideas people have had for bottom feed juice boxes and have a question relating to it.

For hygiene reasons a needle meant for syringes is a good choice for the attie end and people tend to squeeze their bottle or have a pump bottle.

I think my idea might work but want to throw it open to all.

If you got a fine enough needle say 27 Gauge, and fitted this to the atomizer end, and obviously a wider tube for the battery connection, would Bernoulli's principlecome into effect when you inhale and heat the atomizer ?

If it did you would not need to pump at all as the fluid would naturally rise up the tube and feed the system.
Trees use this to pump sap up their height using the evaporation effect from their leaves after all.

I am just not sure of the needle size you would need for this to works.

I just hope there is some smart chemistry/physics/biology type person on these forums that could have a think about this as I propose this would make bottom feeding much easier and cleaner (should be no flood risk after all).

Answers not on a postcard, here will do just fine !:vapor:

It's been a while since I used a Suck-n-Draw so I had to dig out the pics:

tube1.jpg
tube2.jpg


Top feeder using the same principle. How will you adjust your system to deal with different viscosity? I used three different air vent tubes for thin, medium, and thick ejuice which allowed me to use a single size feeder tube.

One problem with micro needles is how easily they will stop up with dried ejuice or foreign matter....it won't take much to block the needle; but work with it, you might be surprised what you learn as you develop the idea.

One thing leads to another and gives rise to new ideas. It's part of the fun of discovery.....

Like I posted in the check valve response and here; it's all about controlling air. Control it with a bottle mod via an adapter and you get an adjustable draw tank for the GGTS.

draw2.jpg
draw1.jpg
 
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