Some homemade attys and genesis

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Scubabatdan

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Dan that looks awesome! Bout the size of a stormy tank is it?

Yes about the same size as a Stormy tank

Is there a return back into the juice container? The 2nd pin there would be a cool return line suction fed back into the container.

The tube the SS is slid into is the supply line from the juice res.
Dan
 

Scubabatdan

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The ss mesh is the supply line (from what i gather) but is there a return or does it just 'well' inside the bottom part?

There is no return line, since there will be a vacum because it is a sealed juice reservoir the only way for juice to continue to flow is for air to be sucked back into the reservoir. On a straight leg air can get back in to easily causing a pooling problem in the conbustion chamber. By making it harder for air to get back in to the resevoir I essentially slow down the juice delivery and hopfully the pooling problem. So juice will well in the nylon tube where the wick is inserted.
Hope this helps,
Dan
 

bmwzero

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Thats exactly the info i needed. How is the juice delivery going? Does the juice keep up at the moment? I'm also curious to see how much it does collect in the bottom nylon.
I was thinking a constant flow circuit of the drawn air to help suck juice down the wick into the nylon catch, then continue back up to the juice container, just a quick idea no real thought into it..
 

asdaq

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Dan, that looks really good, can't wait to hear how she performs especially with comparisons to other models in your fleet. This one is going to make a lot of house pets envious with that feed system :laugh:

I've got some "what if's", but I don't think you wanna hear.

Turbo, .9mm is a 20G, still useful for filling thicker VG juices too :)
 
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lorderos33

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Ok, so I got all the plumbing done, I had to resort to a clear 2 part epoxy to seal and stick the juice tube and pos wire for this prototype. Already fired it and produces ALOT of vapor. I have to re-cut the poly tube length before I can fill it and the cap will add pressure to the juice tank cap. Decided to separate these two so I could remove the mouth piece and push the entire assemble out for coil maintenance without disturbing the juice reservoir. Well here she is, still have to cut 5/16" off the tube to get the proper length.
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We will see tonight how she is gonna perform.
Dan

That is awesome Dan!!!
That looks like a winner for a co-op candidate if I ever saw one! I'm very curious to see how she performs.
 

Quick1

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There is no return line, since there will be a vacum because it is a sealed juice reservoir the only way for juice to continue to flow is for air to be sucked back into the reservoir. On a straight leg air can get back in to easily causing a pooling problem in the conbustion chamber. By making it harder for air to get back in to the resevoir I essentially slow down the juice delivery and hopfully the pooling problem. So juice will well in the nylon tube where the wick is inserted.
Hope this helps,
Dan

hmmm, Why would you expect a pooling problem? I think the capillary action might prevent that. Pooling from condensation maybe but maybe not excess due to the resevoir being inverted (above the chamber). Lot of factors there though.

"conventional" Genisis:
- Capillary action draws juice UP the wick. There seems to be plenty of margin there since it works well with a wide range of viscosity. Relatively thin PG and thick VG are both handled well. Furthermore people have used much longer mesh wicks (significantly longer than 40 mm) with success.
- Gravity. The force of the capillary action is greater than the effect of gravity or the wicks would not work or would dry out if left vertical too long. Capillary action is not directional. It is the attraction of the liquid to the surface and surface tension of the liquid itself.
- Considering only the wick, it doesn't matter if the resevoir is above or below. Capillary action will saturate the entire wick fairly evenly (in our application with the length of the wick well within it's limitations -- we could have a much longer wick that would still work well).

The difference would be the force/weight of the liquid in the resevoir above the wick. My guess is that this would be less than the surface tension of the liquid. My guess is that you wouldn't even see a droplet form at the bottom of the wick much less any dripping. Now if thewick was touching the surface of the chamber then I would expect it to flow but I don't think contact with the hole/tube where it enters the chamber would do that.

Interesting question. How long do we have to wait for the experiment? :D
 
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Scubabatdan

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hmmm, Why would you expect a pooling problem? I think the capillary action might prevent that. Pooling from condensation maybe but maybe not excess due to the resevoir being inverted (above the chamber). Lot of factors there though.

"conventional" Genisis:
- Capillary action draws juice UP the wick. There seems to be plenty of margin there since it works well with a wide range of viscosity. Relatively thin PG and thick VG are both handled well. Furthermore people have used much longer mesh wicks (significantly longer than 40 mm) with success.
- Gravity. The force of the capillary action is greater than the effect of gravity or the wicks would not work or would dry out if left vertical too long. Capillary action is not directional. It is the attraction of the liquid to the surface and surface tension of the liquid itself.
- Considering only the wick, it doesn't matter if the resevoir is above or below. Capillary action will saturate the entire wick fairly evenly (in our application with the length of the wick well within it's limitations -- we could have a much longer wick that would still work well).

The difference would be the force/weight of the liquid in the resevoir above the wick. My guess is that this would be less than the surface tension of the liquid. My guess is that you wouldn't even see a droplet form at the bottom of the wick much less any dripping. Now if thewick was touching the surface of the chamber then I would expect it to flow but I don't think contact with the hole/tube where it enters the chamber would do that.

Interesting question. How long do we have to wait for the experiment? :D

Because in the current version based on the germans design, no matter how tight the wick is to the bottle in an unside down position air get in and lets juice out. The current version I am on has the bottle inverted with the wick (SS) in the opening and in a small cup on the bottom. What happens is when it is in a perfectly vertical position no pooling occurs, when it is used and tilted, more air gets into the bottle no matter how tight the bottle is to the wick. With SS you can only go so tight before kinking occurs. So by forcing the air to move in a U shaped channel I hope to minimized the air delivery which will minimized or eliminated the overfolw/pooling problem. Even with a dual wick in the in the conventional genesis, once the juice gets below a certain point say 1/3 remaining the capillary action is not fast enough and you must tilt the PV to saturate the wick. I am betting on gravity and cappillary action to work in my favor along with a vacum created by a closed resevoir. This way I can use it down to the lat dop or near enough with out having to tilt to saturate the wick. Every puff should be identical and not oooohhh goood then WTF.... tilt ooooohhh good... it should be ooohhh good every puff!
Well that is what I am after.
When I get home I will re-cut the tube and turn a new cap and she should be ready for testing. So... hopefully tonight!

Side note, my 400lb mill suffered a broken main bolt that holds the collers for the mill tips so I have to order, so no milling for awhile! Dang it!
Dan
 

Quick1

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In that case I would expect it to be very sensitive to juice viscosity. If you get it adjusted for thinner juice it won't work for thicker juice and vice-versa. I'm surprised you have wicking problems with the conventional Genisis when the tank gets down to 1/3 or less. Again, I expect that has to do with juice viscosity. I use very thick, 100% VG (cut with no or little water) and mine wicks very well until the tank is (literally) completely dry (tank is roughly 18 mm ID and about 22 mm deep holding ~3 ml). Wick is ~40 mm tall.
 

RatInDaHat

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Side note, my 400lb mill suffered a broken main bolt that holds the collers for the mill tips so I have to order, so no milling for awhile! Dang it!
Dan

You talking about the draw bar? Should be easy enough to either make a new one or source one quickly. Maybe it is time to install a power draw bar. ;-) You running an x3 or similar type mini mill? at that weight i would assume so.

Oh and don't take any of that as condescending. I remember when i called my mill an "end mill" only to later find out that is what the actual tool with the sharp flutes is called. Learning the correct terminology is a good thing when you are interfacing with other machinists(which will happen even when you don't expect it.)
 
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ooSTURMoo

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