DGDC (dual gauge, dual coil)

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darkzero

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I can see the video now. To me it does look like the lower guage does heat up quicker. Makes sense, current will always favor the path of the least resistance. I wonder how much difference in resistance the coils are. Damn, you guys kind of make me want to try for myself to see if it makes a difference in overall vape.
 

darkzero

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To add, both coils heat up so quick with very little lag between each other that it's not going to really make a difference. What you did prove is that it's not cause of the two guages transfering heat that makes them work. Whether the two guages tightly coiled together actually makes a difference in vape I have no idea. Now if there was a bigger gap between wire sizes then there might be more noticeable differences. So who is going to try 30 or 32 & 26? :laugh:
 

Jerms

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Here's how I'm going to describe this.


If you had a sound mixing board (ok?), and there were ten pots on it (ok?), #1 being the volume for the bassiest tones and #10 being the trebliest (ok?), and they were all set to 5 (mid volume setting); take pots #2 and #9, and turn them up to 7.

There you go. :closedeyes:

Yeah, oddly enough, I think I'm following ya..

Or this. . . . .

You know how when you cross your fingers far enough and then use the crook between them to stroke the bridge of your nose, and it feels like you've got two noses?


There you go. :closedeyes:

.. and there ya lost me lol.

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Jerms

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Glad to see some people experimenting while I was off at work.

Thanks for trying that using same length wires with different gauge Stat! Interesting results and says a lot. What it says for sure, I don't know, but certaintly disproves a couple things. I've guessed before, and noone has agreed or disagreed, that the heating up at close to the same time is because, while the lower gauge wire is drawing more power, thicker wire needs more power to heat up as quick and hot as thinner wire. Since we're seeing about the same results using larger difference in gauges, I think that while using same lengths of wire, the difference in thickness and resistance stays close to equaling things out.

I hope that makes sense.. been a looong day and I need sleep, so while I know what I'm saying I have no idea if I'm explaining it right lol. Anyways, I have a couple ideas I want to try in a couple days when I have time. Keep the tests and results coming!

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hawkizefan

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What I find interesting about this, (in my mixed up brain) is it relates (i think) to this coil shape business. It seems the micro style already flouts convention re: leg length and vape intensity. Does it also laugh in the face of our rules about dual coils? Where will it end? If it is, indeed, inductance at play here, I'd love to learn more.

Hopefully "gotalotgoingon" will throw in his pics, variations. I know he was trying it concurrent w/ but separate from Jerms.

I had the distinct pleasure of meeting Gotalot yesterday and seeing his coil artistry up close and personal. That boy wraps a pretty coil. He was sporting a vertical micro on the Igo-l that was cool.
Got some pointers/tips from him that was much appreciated. The guys mind seems to always be turning with new ways to make it better.
Going to try to put some of his knowledge to good use later today.
 

grindle

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0.3mmx0.1mm Kanthal ribbon (2.4Ω) + 0.25mm/30AWG Kanthal (1.4Ω) = DGDC @ 1.1Ω

7AD9cFZ.jpg


The coils light up relatively evenly through heat transference but once wicked... pushing the voltage past 4.3v (predictably) ends up with the vape getting burnt because of the 1.4Ω coil (which is pushing 13watts, the 2.4Ω @ a shade under 8watts).
Needless to say a 1.1Ω dual-coil, dual wick setup wouldn't be burning until it got past 5v unless I was using a thinner guage of wire.

Using a cheesecloth wick, so speed of wicking isn't the issue.

Flavour's great but not worth the hassle and not worth the decrease in punch I get from a dual-coil, dual-wick setup made from the same diameter wire.
 

pdib

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Well, sheep dip! A fella' goes to bed for a few hours, and a whole lotta stuff happens while he sleeps. Thanks for doing the experiment, Stats! I appreciate how meticulous you were; given that it was not a build-to-vape job.

So, for your original idea, Jerms. That of creating a predictable lag with one of the coils (I'm over simplifying your thoughts). Obviously, one might do something (regardless of gauge, but more fun with thick 'n thin) where the dual micro is all same/same, but right at the end (one leg), there's a kink to lengthen one coil by a given amount.
 

gotalotgoingon

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Gee, thanks for the kind words Hawk! I didn't get any testing done yesterday as I was busy with a meet up with Hawk and Kent Brooks. It was a nice break from my usual tinkering, that's for sure.

As for the coil that pdib was refering to, it was a 28 gauge, 34 gauge wrap I believe. I was hoping that the 34 gauge would bring out the subtle flavors in a liquid. After testing it for awhile, I came to the conclusion that it did not achieve this. It did provide a very good vape, on par with the a standard micro but it did not heat up as fast as a standard. I have since ripped that coil out and replaced it with the vertical coil that Hawk mentioned seeing yesterday.

My next go at a dual gauge wire will be a vertical setup.

Here is the old dual wire setup:

IMG_0182.jpg
 
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gotalotgoingon

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Dual twisted wire vertical micro coil. 28 and 32 gauge Kanthal, 11 wraps 1.0ohms. Don't really understand why it came out at 1.0ohms. My other micros with 11 wraps of 28 gauge come in at around 1.4ohms. I guess I am not a scientist so I am not going to rack my brain trying to figure it out, but instead post the facts. I haven't wicked it yet. Was a PITA to attach and get it all the way to the edge of the deck. I will have to break out my mech to vape it.

IMG_0190.jpg
 

darkzero

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Dual twisted wire vertical micro coil. 28 and 32 gauge Kanthal, 11 wraps 1.0ohms. Don't really understand why it came out at 1.0ohms. My other micros with 11 wraps of 28 gauge come in at around 1.4ohms. I guess I am not a scientist so I am not going to rack my brain trying to figure it out, but instead post the facts. I haven't wicked it yet. Was a PITA to attach and get it all the way to the edge of the deck. I will have to break out my mech to vape it.

Pretty cool. The reason why resistance is lower cause when you twist wire it's basically simulating a lower guage wire & is different than what the others are doing here. They are not twisting here, they are wrapping with the two guages parallel to each other.
 

gotalotgoingon

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Pretty cool. The reason why resistance is lower cause when you twist wire it's basically simulating a lower guage wire & is different than what the others are doing here. They are not twisting here, they are wrapping with the two guages parallel to each other.

I can that being the reason why, thanks! I had this coil twisted from a few nights ago after I built my dual wire parallel.
The twisted coil vapes well. Vapes as well as a standard micro. Chain vapes great. I thought this would be a problem since the juice has to go straight up to reach the top of the coil. As of yet, I have not had a dry hit. Another testament to using cotton as a wick I guess. Takes a tad bit longer to heat up then a single wire coil. As of now, I see no advantages to this coil.
 

Statistic

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So.. yeah..

26g and 32g micros:


The vape is legit, lol. Not great but not bad at all. I am no connoisseur of flavors so I can't comment on subtleties but it's a good flavorful hit.

I measured them separate, 32 was 2.8ohm, 26 was .8ohm. Together they measured .4ohm, measuring the same grounding at either post and on the atty base.

 

Statistic

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Yeap, unexpected

The overall measurement is the only one I didn't get a pic of.. I don't know why I didn't use my alligator clips for it :facepalm:. The others are recent uploads (in my photobucket) if anyone is interested just click the photo and browse around

I wrapped them on the center strand from some ss rope I had. It measured exactly funkin tiny, somewhere between mini and nano, lol
 
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