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Scubabatdan

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Ok, I believe I understand now. The principle is similar to an upside-down bottle water dispenser? I'll restate my way....The suction from the user drawing on the mouthpiece assists air in getting into the sealed outer chamber which in turn allows the outer chamber liquid into the wicking area?

Good explanation!
Exactly correct!
Dan
 

Scubabatdan

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Skeeterkck

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Is it like a map tank???? Or a map tank in a mod???? Hmmmmm looks nice & interesting :)

Okay, question please???? The CO-OP deal. If I sign up, and i get one of these for 20.00, does that mean after Iget it, I have to assemble the rest myself???? That is what I am understanding anyway. I don't know how to do electronical things :(
Skeeterkck
 
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mj64

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Good explanation!
Exactly correct!
Dan

That's a relief. This actually puts this in my favorite subject area\pet peeve on ecigs. Airflow. The 'conditions' in the liquid chamber will change as liquid is used affecting performance, just like sealed system bottom feeders. Have you given any thought to adjustable airflow?
 

Scubabatdan

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That's a relief. This actually puts this in my favorite subject area\pet peeve on ecigs. Airflow. The 'conditions' in the liquid chamber will change as liquid is used affecting performance, just like sealed system bottom feeders. Have you given any thought to adjustable airflow?

Not yet still working on the prototype, will adjust as neded.

Ok I am going to the river for some kayaking today, will be back later.
Dan
 

lorderos33

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Hey Dan, I have a suggestion for the DSUv4.

I was thinking about the bottom air flow design and can't help but think about the effect of gravity + capillary action on the juice causing it to flow into the connector and getting onto the battery connector of the mod it's attached to.

It might be a good idea for the DSU v4 to have air come in from the top cap and directing it to the coil utilizing a syringe needle or the outer tube of a gold, spring loaded test lead so that the juice won't be able to flow down through the battery connector. I'm not saying that this WILL happen, just that it is a distinct possibility given the tendencies of liquids to flow across surfaces that don't have breaks in them.
 

Teach

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Hey Dan, I have a suggestion for the DSUv4.

I was thinking about the bottom air flow design and can't help but think about the effect of gravity + capillary action on the juice causing it to flow into the connector and getting onto the battery connector of the mod it's attached to.

It might be a good idea for the DSU v4 to have air come in from the top cap and directing it to the coil utilizing a syringe needle or the outer tube of a gold, spring loaded test lead so that the juice won't be able to flow down through the battery connector. I'm not saying that this WILL happen, just that it is a distinct possibility given the tendencies of liquids to flow across surfaces that don't have breaks in them.

I think you're right if there's an open tube, but with the mesh, the viscosity of the fluid, and the vacuum's resistance to flow might be enough to slow it down. If the mesh is properly fitted to the sides of the juice feed tube, the liquid has a high enough viscosity to resist flowing, and the tank is sealed properly to maintain a vacuum, I can see how it would work.

But, then again, I can also envision it pushing through after a number of hours when inactive and the juice feed is not burned off. When you consider period of inactivity, couldn't it be stowed upside down with the juice away from mesh so a few draws (inverted) would essentially 'empty' the wick?
 

lorderos33

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I think you're right if there's an open tube, but with the mesh, the viscosity of the fluid, and the vacuum's resistance to flow might be enough to slow it down. If the mesh is properly fitted to the sides of the juice feed tube, the liquid has a high enough viscosity to resist flowing, and the tank is sealed properly to maintain a vacuum, I can see how it would work.

But, then again, I can also envision it pushing through after a number of hours when inactive and the juice feed is not burned off. When you consider period of inactivity, couldn't it be stowed upside down with the juice away from mesh so a few draws (inverted) would essentially 'empty' the wick?

Exactly. I was thinking more of the overnight sit than throughout the day.

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harmonic

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say it looks like the DSU v4 desgin is about the same as the g4 and vortex carts that have been floating around. I have tanked several of the vortex units and they worked great. no problems with the juice trying to equalize or anything like that. only time i had problems was going from my air conditioned 75 degree house to 95 outside the air inside the tank expands and makes it leak. but left on my desk and around the house no problems. I think the wick is one of the key factors it has to be able to restrict the juice flow enough that it wont trickle out but still let enough through to work correctly... I dont know if ss will fit the bill but since dan is using ss AND the ceramic sleeve it might work ok. i havent tried and it and dan is on v4 so I would bet he knows how to make it work...
:vapor:
great job scuba - some very impressive work sir!
 

Gummy Bear

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I tanked a Vortex within hours of there arrival and yes while vapping it worked great in a tank but tank or no tank they would leak down the threads on my dresser over night. I quickly gave up on them. But as I recall they didn't take advantage of a vacuum to keep the juice from wicking.
 

harmonic

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I think your right gummy but idk my tanks are air tight and I didn't get any real leaking on the 2 that I did use for about 2 weeks and I left them all sorts of different ways... the bigger one I made (~5ml) started leaking after I took it outside and I had to leave it sit a day or more. Once the juice was trickling out it didn't want to stop and it was a big headache. I stopped using it when the base came loose and twisted around and the inside didn't cuz i didn't glue it. Didnt feel like trying to rebuild the wick and coil again but if it had been all glued together it would have lasted a lot longer... went back to a diamond dual coil and a maximizer lol
I look forward to seeing the finished v4 :)

edit: I did try to make more but over 1/2 of the vortex that I tried leaked either right off or left a puddle later. Too many problems with the specific design. I would think it could work very well if done just right and I'll bet that Dans got it figured out...
 
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NatureBoy

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Hey we are not gonna sit on our fannies waiting like an ol woman pinning after a bo. Were gonna make crap! LOL
Naw seriously, the status is the same, 27 July for the Tops, and 4 Aug for the main body. Whish it were faster.
Dan
Thanks Dan.. I missed the post that had the dates.
 

Scubabatdan

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Ok DSUv4 (SCUVAGEN),
Well I have made a few changes as I went along.
I used two 16ga needles for the Pos and Neg posts, I also used the neg post for the air tube, I cut a hole in it so the 19ga nail stops before the hole. This directs the air right at the coil. I was tight on space so I went with the SS tubes and 19ga nails to hold the coil ends and supply the air flow. The benefit of the air hole being beside the coil does two things. Provides direct air flow and keeps the juice from flooding the battery connector even if the juice floods to much.
It holds 4ml as it sits and I have run 8ml through it so far. Here is what it looks like after 8ml:
IMG_0472.jpgIMG_0473.jpgIMG_0474.jpgIMG_0475.jpg
Well so far so good, I am also using a rubber fitting I found at lowes many months ago. Will make the mouth piece attach soon.
The neat thing is when I inhale and then look at the resivoir I can see a small air bubble go up. This has not flooded at all and I can lay this in any position with out flooding the mouth piece or battery connector.
Dan
 
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