Unbalanced dual coil build

[jersey_emt]

Has anyone experimented with unbalanced dual coil builds? By unbalanced I mean two coils of differing resistance and/or wire gauge.

What I am thinking of is using a 1.0 ohm microcoil with 26 gauge Kanthal and a 2.0 microcoil with 30 gauge Kanthal.

Doing this of course makes estimating the resistance before building and actually measuring its resistance more complicated, since the resistance is the inverse of the sum of the inverse resistance of each individual coil.

Resistance = 1 / (1/A + 1/B), where A = resistance of first coil and B = resistance of second coil.

So a 1.0 ohm coil and a 2.0 ohm coil connected in parallel will have a resistance of 0.67 ohms.

1 / (1/1 + 1/2)
= 1 / 1.5
= 0.67 ohms

Or you can make things a bit simpler if you use two 1.3 ohm microcoils, one built with 26 gauge and the other with 30 gauge wire. Connected in parallel, the resistance of the two coils will be one-half of the resistance of one of the coils, so 0.65 ohms.

The reason why I am thinking of trying this is the fact that thicker wire takes longer to heat up, while thinner wire heats up quicker. I am hoping that combining the two will give a vape with less ramp-up while still having the high density that thicker wire coils offer.

*Anyone attempting these builds must confirm whether their batteries can safely deliver required ~6.5 amps.*

 

[jersey_emt]

*bump* (Thread dropped off of the first page into oblivion)

Anyone who has tried this, or anyone who has some thoughts about doing something like this, I would greatly appreciate your input.

 

[jersey_emt]

Still no-one? If in a few more days I don't hear from anybody who may have already tried this, I will go ahead and build a ~1.0 ohm dual coil setup using 26 gauge wire for the first coil and 30 gauge for the second coil.

 

[Mitey F]

In theory, it could work, and I'm sure many (like myself) have thought of this before. However, it's much easier to find a happy medium with a single coil, some combination of ramp up and good vapor. Remember, if you have 2 different coils, looking to get the best of both worlds, it's very likely you'll also have the WORST of both worlds. It seems entirely possible that when you take a hit, at first the smaller coil will be working well, but by the time the larger coil kicks in with more vapor, the smaller one will already be burning.

I don't think it's terribly difficult to find a "regular" dual coil setup that will heat quickly AND produce the desired vapor.

With that said, give it a shot. If it works, that's awesome. If not, no harm no foul.

 

[RickCain]

The only problem I could see is the higher ohm coil will not heat up as fast causing the flavor to change. Would give the effect of a low battery hit on a normal configuration.

Same with equal resistance coils in different gage wire, the thicker wire requires more current than the thinner resulting in problems.

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[Stosh]

Interesting theory, not sure what would happen in practice.... Might have to try this with different gauges and / or different resistance with same gauge myself.

Experiments are what push vaping forward, finds new products and methods. Cotton wicking is accepted and normal now, but was a "hmmm, what if" experiment not so long ago.

 

[glasseye]

I have a dual coil build right now, one coil is 28 ga kanthal and one coil is ribbon wire, I forget the size right now. They heat up almost together and come out to 1.3. To me it's just OK. It was my first try with ribbon wire and I'm not quite sure I like it well enough yet to do a dual with it. It does work though.
here's a quick pic. It not as deeply slushy as it looks. lol

 

[jersey_emt]

The only problem I could see is the higher ohm coil will not heat up as fast causing the flavor to change. Would give the effect of a low battery hit on a normal configuration.

Same with equal resistance coils in different gage wire, the thicker wire requires more current than the thinner resulting in problems.

I agree that two coils of different resistance probably won't work well. But with equal resistance coils made with different wire thicknesses, while the thicker wire will take a bit longer to get to temperature, it doesn't require any more current. As long as the resistance is matched, each coil will get the same amount of current.

 

[heateris]

In theory, I like the idea of two coils with the same ohms made from different size wire. I can't help but wonder if you would really notice any difference in vape quality.


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[metamorpheus]

http://www.e-cigarette-forum.com/fo...stems/496390-inception-coil.html#post11387588

Did this build a while ago. It ripped really hard, but you definitely had to keep it soaked. Its a 28Ga nano inside of a 24 Ga mini with cotton inbetween the two. Pictures in the thread.

You don't have to make it pretty like I did, I just wanted it to look like a flower.

 

[pdib]

We were messin' around with some stuff a while back

http://www.e-cigarette-forum.com/fo...dgdc-dual-gauge-dual-coil.html?highlight=DGDC

 

[pdib]

And I was doing some stuff like this . . . .

Mundy's and René41. The René is set up to be higher in res. because the Mundy's is slower to heat. René has hemp, Mundy's cotton.

 

[Pur3Rush]

rip trippers on youtube. Why not do a twisted coil. Twist both wire guages together to create a singular wire, wrap a dual coil, you're all set. Rip trippers has tons of coil build tutorials to check out.