Post pictures of your working wick and coil setup

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juggalofisher88

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OK, so it basically let's you control where the heat starts, got it.

Welded together with a special welder, right?

Yeah i was wondering how to use that to i got a roll on nr-r-nr tried wrapping it around leg but it got red hot

sig-153231.jpg
 

AMDTrucking

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OK, so it basically let's you control where the heat starts, got it.

Welded together with a special welder, right?


Yeah i was wondering how to use that to i got a roll on nr-r-nr tried wrapping it around leg but it got red hot

sig-153231.jpg

Nothing special. It is a cheap (about 20.00) , homemade spark welder that I put together using RadioShack parts:

e7Pebki.jpg




Here is what's inside:

B7RbJFU.jpg



Or, you can get a Zapper from UK for £44.99 Zapper v2 or TSAF from Greece for €112.27 Supplies :: Welding Machines :: The Tsaf VRD Wire welding machine - Esmokeguru

Makes pretty good joints:

7lR1Chh.jpg



 
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etherealink

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AMDTrucking

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OK, so it basically let's you control where the heat starts, got it.

Welded together with a special welder, right?

In the knot shell, yes.

But in reality:
In less resistive conductors like gold, silver, copper, brass, aluminum e.t.c. (in that order) Electrical current is a stream of electrons through your wire (actually around the surface of the wire, but just disregard that for now)
The thicker your wire - more electrons can pass through without bumping into each-other. That means: Less Resistance.

If the wire is too thin, the electrons will be forced to try to get to where they are going "Elbowing each-other", rubbing against each-other creating friction, which equals heat and burn/melt your wire.

In high resistive wires like Nichrome and Kanthal which are engineered to be higher resistance conductors, yet to be able to withstand higher temperatures.
Why? Because the higher the resistance the more electrons trying to squeeze through "elbowing each-other" creating friction which equals HEAT. The Heat is what we want from it but without melting and burning.
That is how the basic heating element works.

In the NR-R-NR scenario, we get the best of both Worlds:
Our heating Kenthal wire is wrapped around our wick in it's entirety. That means that all of our Kenthal is doing the juice vaporizing instead of just heating the air like when it is used to make long leads (legs) to connect to the posts. That job is for NON resistive wires that don't heat up, don't slow down our electrons, instead they just let them through to the heating element. Basically, this method makes your coil work more efficiently. With an added benefit of the fact that non resistive wires make much better electrical connection with the posts of your atomizer.
One more benefit: When preparing your NR-R-NR wire, you measure your resistive wire length based on Ohms per Foot provided and cut two pieces of a same length. That means your coils are going to come out of exactly same resistance, no matter what, and you don't have to count your wraps. Also, knowing what your coil resistance is going to be before you wrap your coil is also useful as well as you will no longer have leftovers of your Kanthal because you will cut exactly as much as you need every time.
I'm not selling anything here, just sharing my own experience. IMO
 

Alexander Mundy

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Good recap, but 2 things.
(Yep I'm OCD)

Aluminum has higher conductivity than brass.

The electrons take a long time to get through the wire if at all. They play dominoes to transfer the energy. Poorer conductors have atoms that hold tighter onto their electrons so they don't like to play dominoes.
 

AMDTrucking

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Good recap, but 2 things.
(Yep I'm OCD)

Aluminum has higher conductivity than brass.

The electrons take a long time to get through the wire if at all. They play dominoes to transfer the energy. Poorer conductors have atoms that hold tighter onto their electrons so they don't like to play dominoes.

I know. I just tried to simplify this explanation as much as I possibly could.
And yes, you are right. The chemically pure aluminum is more conductive then copper. Unfortunately, it is very soft and cannot be used in real life without adding other components to it to make it more useful. Industrially used aluminum is just a bit less conductive then industrially used copper. But, I could be wrong.

Oops, You mean brass. I thought you meant copper.
I stand corrected.
 

etherealink

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In the knot shell, yes.

But in reality:
In less resistive conductors like gold, silver, copper, brass, aluminum e.t.c. (in that order) Electrical current is a stream of electrons through your wire (actually around the surface of the wire, but just disregard that for now)
The thicker your wire - more electrons can pass through without bumping into each-other. That means: Less Resistance.

If the wire is too thin, the electrons will be forced to try to get to where they are going "Elbowing each-other", rubbing against each-other creating friction, which equals heat and burn/melt your wire.

In high resistive wires like Nichrome and Kanthal which are engineered to be higher resistance conductors, yet to be able to withstand higher temperatures.
Why? Because the higher the resistance the more electrons trying to squeeze through "elbowing each-other" creating friction which equals HEAT. The Heat is what we want from it but without melting and burning.
That is how the basic heating element works.

In the NR-R-NR scenario, we get the best of both Worlds:
Our heating Kenthal wire is wrapped around our wick in it's entirety. That means that all of our Kenthal is doing the juice vaporizing instead of just heating the air like when it is used to make long leads (legs) to connect to the posts. That job is for NON resistive wires that don't heat up, don't slow down our electrons, instead they just let them through to the heating element. Basically, this method makes your coil work more efficiently. With an added benefit of the fact that non resistive wires make much better electrical connection with the posts of your atomizer.
One more benefit: When preparing your NR-R-NR wire, you measure your resistive wire length based on Ohms per Foot provided and cut two pieces of a same length. That means your coils are going to come out of exactly same resistance, no matter what, and you don't have to count your wraps. Also, knowing what your coil resistance is going to be before you wrap your coil is also useful as well as you will no longer have leftovers of your Kanthal because you will cut exactly as much as you need every time.
I'm not selling anything here, just sharing my own experience. IMO
I follow the logic and get where you're going but after 60 hrs in the truck I need a bit to wrap my head around it... thanks for the in depth break down.
 

FLExJuice

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I don't know what I was thinking. dual 22g on 3/32". Takes forever to heat up, then gets the atty so hot it's frightening.FAIL
I've been experimenting on having single, duals, and triple coils, especially with my recent triple build on a Cerberus atty at .4ohms with 28g. It heats up slow, the vape is too hot that it makes me cough, and yes the atty gets frackin hot.
 

juggalofisher88

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I've been experimenting on having single, duals, and triple coils, especially with my recent triple build on a Cerberus atty at .4ohms with 28g. It heats up slow, the vape is too hot that it makes me cough, and yes the atty gets frackin hot.

Hmm i had dual triple parallels 28g .2-.3ish ohm (posted in this thread a few pages back)
On a modded TOBH the coils would stay warm longer than i like but the atty only got hot if i was chain vaping.
But then again i had alot of airflow
sig-153231.jpg
 
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