Some homemade attys and genesis

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Quick1

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So in parallel, with two four ohm coils you would only get two ohms. Meaning it will be a longer cable that gets warmer?

No, I think it works this way. TOTAL heat (wattage) would be the same. Surface temp on the coil would be cooler.

One 2Ω coil => x watts
Two 4Ω coils in parallel => x watts

Longer coil producing the same amount of heat. Since it would be longer, any single point on the "coil" would be cooler.
 

RatInDaHat

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No, I think it works this way. TOTAL heat (wattage) would be the same. Surface temp on the coil would be cooler.

One 2Ω coil => x watts
Two 4Ω coils in parallel => x watts

Longer coil producing the same amount of heat. Since it would be longer, any single point on the "coil" would be cooler.

This is correct.

2 1-ohm coils would heat up to the same temperature as 1 2-ohm coil, but would require twice the power
 

Quick1

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not totally clear though as the internal temperature of the wire will be the same as well. the power dissipated and total heat load will be higher. :D

essentially the temperature per area will be the same but we are doubling the area.

hahaha, I thought it best to go with sweeping, sort of correct, generalities to get the concept across.
 

Quick1

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So basically the same heat, more distributed?

Same current =~= same heat

Also more power consumption.

Not if you're producing the same heat.

So this could mean you wont be able to dry out the wick?

Now you're talking about something completely different... The wick will wick at whatever rate it wicks at. You're going to vaporize juice at whatever rate you're going to vaporize juice at. If you vaporize at a rate greater than the wick wicks then you could dry it out.

The wick does have some reservoir properties depending on thickness and density and we don't vaporize continuously. Vaporize for 2 or 3 seconds and pause for 5 or 10 seconds. If you extend the length of wick you vaporize over then you increase the size of the (wick) reservoir. But it's not going to replenish at a rate greater than it did before. Let's assume the wick goes dry during a long drag. If you vaporize over more wick then you might be able to get an entire drag in without the wick going dry. Then think about multiple drags. If you vaporize more than is held in the wick (under the coil) then it needs to wick more to replenish it. It needs to be able to wick at a rate equal to or greater than the rate you're vaporizing it. The amount held in the wick doesn't matter.

All the above doesn't take into account how juice vaporizes. It vaporizes at a particular temperature. Spot temperature is different than total heat over a given area. Spreading the same amount of heat over a larger area means lower spot temperatures. If you keep the spot temperature the same and increase the area then you're going to be vaporizing a larger volume of juice. Now you are producing way more vapor than you need and you haven't solved your wicking problem (assuming one existed in the first place).

So to get back to my original question. Nobody is drying out their wick now. Why work on a solution to a problem that doesn't exist?
 
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asdaq

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It seems to me that a dual coil further complicates things with the extra wire and likely just sounds impressive.

If you want to alter wicking properties with a coil and surface area, you can make tight coils with loops very close together or spread them out over more wick for more surface area.

Dual wicks or maybe dual genisis, that might be something.
 

RatInDaHat

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agree with above. it could actually make the wick harder to keep wet as you will likely be vaporizing more juice over a greater area, requiring more time to replenish.

the only thing i could see for this to be an advantage is greater vapor production, if all elements remain equal. not sure that is an issue though.

why did we get into the topic?
 

UA72Riddle

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I finally got the bright idea to actually start trying out modding on my own...not just building something someone else has already made. My biggest problem with my genisis has always been getting a solid connection. I have gotten pretty good at wrapping, and using the wrapping tool from RadioShack to wrap the posts. But it always seems to get loose over time. So I was at RadioShack again, and found these 10mm standoffs. I just chipped all the plastic off, which gave me two connectors in each piece. Using my Dremmel and a 1.2mm bit, I drilled a hole in the center for the wire, then soldered it to the posts. They are a little too big, but work just the same. This is what I ended up with....
connectors.jpgconnectors2.jpg

I tested it out, and had a great connection! After all of that was done, I decided to clean it out. I rinsed it out with Alcohol...and thats when everything went wrong. I set the tank up to dry, came back about 30 minutes later to find this.....:confused:
GenFailure.jpg

Guess the tube doesnt get along well with alcohol. So, now I am waiting for more tube. :mad: While I am waiting for that, I am going to find a better connector, a little smaller. I like this, just too bulky. If I dont come up with anything else, I will just use these again.

Oh well, back to the drawing board....:facepalm:
 

bstedh

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It seems to me that a dual coil further complicates things with the extra wire and likely just sounds impressive.

If you want to alter wicking properties with a coil and surface area, you can make tight coils with loops very close together or spread them out over more wick for more surface area.

Dual wicks or maybe dual genisis, that might be something.

A dual coil might be fun to try just to see what happens =] You could do it easy enough with out modifying much. All you would need to do is make two coils wrapped at the same time so the wraps are offset from each other and not touching and the ends would be connected together.

Here is a drawing of a staged triple coil I was thinking of trying in the future to get both taste and volume with three different gauges of wire.
Variable%252520coil.png
 

Dalton63841

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Here is a drawing of a staged triple coil I was thinking of trying in the future to get both taste and volume with three different gauges of wire.
Variable%252520coil.png

That is pretty cool. One thing does come to mind, and I could be wrong about this...Don't different gauges of wire require different numbers of coils?
 

bstedh

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That is pretty cool. One thing does come to mind, and I could be wrong about this...Don't different gauges of wire require different numbers of coils?
Only if you want the same resistance. I am shooting for multiple resistances. 1 for heat 1 for volume and 1 for taste.... Not sure if it would work in practice and you may need to build a pizeo pump into your tank to supply the the wick with enough juice =]
 
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