Exploring DNA20d step-down activity (re: subohm coils)

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retird

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yep, as an "enthusiast" I settled on carto tanks as I like a great vape that is simple and as fiddle free as possible. I went thru the dual coil stage a year ago and have been reading and seeing video's on rba's for a while now. I'm not bashing rba's with this comment but I'm not seeing a consistant vape quality with rba's as there are so many variables. The bottom line, I think, is what "floats your boat" is what matters. I may have to grab a rba just to try that experience with a 1 ohm coil, or 1.5 ohm coil, so I can have better regulation with the 20d or my darwin....
 

dr g

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Of course there are different levels of "enthusiast," just as, to use another imperfect analogy, there are "guys who are into cars" and "racers" which are both technically enthusiasts.

Subohm RBAs are one of those things that you may just have to try firsthand to understand. I too was in the camp of, this sounds like a bunch of hype and BS, and while there is indeed a lot of hype, some BS, and a lot of lack of understanding, RBAs and subohm are in fact a "real thing," significantly different and interesting thing on their own. A caveat though, the Darwin won't be suitable for it, and 1 ohm is kind of on the shallow end of it. I'm not actually sure yet that the DNA 20 can provide the full subohm experience either.

Right now personally I'm working with rebuilding kanger heads to get some of the large-wire advantages coupled with a reliable feed device, so I get the reliability thing too.
 
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dr g

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he-he-he.....all things vaping have some BS, Hype, etc.......but seriously.....on your .7 ohm rba......what voltage and/or wattage, and amperage gives you the best vape experience? And what device is used to supply the power? Thinking it must be a mechanical mod????

I'd guess so, it's not so bad on the DNA20 but it will only go up to ~18.5w. Which is productive, but the .9 coil that can get the full 20w seems to be more the direction I need to go. TBH I was a little dismayed by that result. I have not tried that coil on a mech yet. I don't own a mech but I do use friends' ones occasionally. They are pretty darn effective.
 

dr g

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Actually I'm giving all the info I've got! haha

Mechs generally have no limitations so presumably they will be able to feed the most power into my coil. The only question when is whether my atomizer can keep up with the wicking demands. I'm not super up on mechs but I believe you are lucky to hit a .4v drop under a subohm load. I don't think any hit 4.0 under load, which is why bapgood's experience was interesting. Unfortunately I can't replicate it with my setup, and it's also out of the regulation range of the DNA20.

FWIW I believe my DNA20 stops recognizing coils at 0.5 ohm ("check atomizer").

EDIT: Hm. Today my coil is reading 0.6 ohm on the DNA, which leads me to believe it may be a .65ish ohm coil. I may need higher precision instruments!
 
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retird

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Yep, mechanicals seem to be what most rba users seem to use....at least most of my pals here that use rba's use mechanicals....bapgood seems to have some success with rba's at 1 to 1.5 ohm on the 20d.....that would put it within the range of specified resistances that the 20d was designed for....thinking I'll grab a rba and follow bap's lead and see where it takes me.....and a dual dna12 is also a posibility.....

I've seen alot of new vape stuff since 2010 and I guess it's time to play a bit with a rba......will let ya know how it goes.....now gotta see which rba to latch onto.....have a great evening....
 

bapgood

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From what I have noticed the majority of advanced rba users are typically either mech users or provari users (and other vv or vw but it seems like they are all provari :D). Most advanced mech users seem to go sub ohm, which makes sense since they can't boost. While electronic users have to stay higher ohms because most electronic boosted mods simply won't fire with lower ohm coils. The DNA breaks out from the two groups and is able to do both.

Retird it makes perfect sense to start out at a higher ohm on a elec mod, there are plenty of other elec rba users to base a starting setup on. Then tailor to suit you. The nice thing about elec mods is that you have some adjustability, where with a mech you have to re-coil. If you get an rba I suggest the rsst, it's relatively cheap and pretty versatile. The wick is insulated if you use a conductive wick like ss mesh or cable, or you can knock out the insulator and have a big wick hole for the ever increasing options of wicks.
 

dr g

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If you want to go really cheap and easy, the Octopus (Smok RDA) is a good one. It's an extremely versatile platform.

I will say this though -- depending on how you are achieving "superohm" resistance it could give the wrong impression. For example the Octopus comes with a 1.7 ohm coil wrapped with relatively high gauge wire. It vapes nicely but not a whole lot better than say a standard size dripping atomizer. So you will want to use a fairly large wire and wick bundle to rebuild with (i'd hazard 28-30 gauge, and 2-3mm silica, bapgood can maybe chime in).

bap: are your buddies provar-holes too? :p
 
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bapgood

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Retird also check out mamu's setup over at her other stomping ground (maybe its documented here idk???) she has a hybrid wick she has been using for quite some time and I believe she runs dual wick/coil in a bliss. I tried it and it worked pretty well, but I wasn't sold on the taste, I think the taste ceramic provides has jaded me.

There is a still a lot of fuss with rba's, it is getting better but not enough for some.
 

bapgood

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bap: are your buddies provar-holes too? :p

lol.....99% of my vape friends are here in the digital arena. The few people that vape that I interact with out in the real world don't have a clue to what I'm using or trying to explain to them. They just take my mod and vape and say how much they like it, then ask me how much it will cost to get the same thing. They don't seem to like it when I try to explain that it's not as easy as buying something off the shelf and using it. So I'm usually a lone wolf vaper in the real world, but there are some functions that I have started taking two mods so I have something to use when one goes MIA. :D
 

bapgood

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Dr g I have been thinking about your results in unregulated mode. I'm wondering if the DNA is actually regulating as much as it can based on the it's capability vs the wattage setting. Because when I was messing around I had the wattage set at 20 so it would start regulating when the battery voltage came down and it seems like I remember that it didn't stay in unregulated mode very long, plus I can't remember what ohm coil I was using, but I'm thinking it might have been close to the regulated/unregulated threshold for the coil and 20w setting.

So I might need to test that further so as that I'm not spitting poo out my rear :D

Sidetrack - What will really make all this rba nonsense even more crazy is when we have a DNA with adjustable preliminary vape boost. So a certain amount of extra power for a certain amount of time when the button is pushed :D.....that or attys with temp sensors talking to the eclectic mod :D.....ok day dream over
 

Visus

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"Custom Nova"? recoiled and wicked, I presume.

Not sure, I do know he uses a usb hub @5v each nova, so entirely possible. the sad part, its on other side of town and my ex used to live one block away from there, I would be able to see it from her front window..boooo lol

Really good restaurants on that block.. 5 in top 50 best restaurants in all of USA close, so when I do go Im making it an event
 

Visus

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Sorry my post was meant to be sarcastic

I disagree 100% that sub ohm coils equate to over nic. There may be some association between the two, but not independently. It's blind vague statements like that, that mislead people. (more in a later post)


As far as vape meets go...yes I know what they are, however not very prominent in my neck of the woods....the sarcastic point I was trying to make is that myself and likely dr g aren't trying to impress anyone. Just experimenting with vape options and capabilities of the equipment.

IMHO your first post in this thread was a baseless opinion followed with remarks intended to belittle and demean. Next time try something like - It has been my experience that sub-ohm coils overnic. Then leave the rest of the stuff in your head.
Retird asks whats the benefit of sub ohm
Reality 100%:locomotive overnic'n machines lol...
Even without nic they make your belly feel strange as e juice pg/vg both are commonly used as a laxative
 

Visus

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From what I have noticed the majority of advanced rba users are typically either mech users or provari users (and other vv or vw but it seems like they are all provari :D). Most advanced mech users seem to go sub ohm, which makes sense since they can't boost. While electronic users have to stay higher ohms because most electronic boosted mods simply won't fire with lower ohm coils. The DNA breaks out from the two groups and is able to do both.

Retird it makes perfect sense to start out at a higher ohm on a elec mod, there are plenty of other elec rba users to base a starting setup on. Then tailor to suit you. The nice thing about elec mods is that you have some adjustability, where with a mech you have to re-coil. If you get an rba I suggest the rsst, it's relatively cheap and pretty versatile. The wick is insulated if you use a conductive wick like ss mesh or cable, or you can knock out the insulator and have a big wick hole for the ever increasing options of wicks.

You are helpful ... lol
 

bapgood

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Yep, mechanicals seem to be what most rba users seem to use....at least most of my pals here that use rba's use mechanicals....bapgood seems to have some success with rba's at 1 to 1.5 ohm on the 20d.....that would put it within the range of specified resistances that the 20d was designed for....thinking I'll grab a rba and follow bap's lead and see where it takes me.....and a dual dna12 is also a posibility.....

I've seen alot of new vape stuff since 2010 and I guess it's time to play a bit with a rba......will let ya know how it goes.....now gotta see which rba to latch onto.....have a great evening....

After further thought an RDA might be a good way to go to start experimenting with rebuilables and different wicks and eliminates the variable of vertical wicking.

There are a ton of RDA's out there, the IGO's seem to be pretty popular right now and fairly inexpensive. Something like IGO-L or IGO-W are kind of nice because they are a little bit bigger and give you a little bit room to work with. I have the L, but like the looks of the W better plus it has a third post so you could run dual coils.

Some really like bottom feeders, you basically get an RDA with a manual feed system.

As far as wicks go silica is probably the most universally used. Hemp seems to be growing in popularity, especially with tobacco flavored juice users. You also have bamboo, cotton, ekowool as "soft" options. Then stainless steel mesh and cable as metal options. Then you have ceramic. I think the only off the shelf ceramic currently available is the FC2000 stuff, I have been playing around with some white ceramic wick "BD13" that should be available soon. I love the flavor of the BD13, but all ceramic wicks do absorb a fair amount of heat along with some lag due to initially heating the wick. That may not so much be the case in an RDA with short wick, I haven't tried it but there are some I believe.

As far as wire goes ribbon seems to be the rage, I like using ribbon. I believe 0.5mm x 0.1mm ribbon is about equivalent to 30g and 0.8mm x 0.1mm ribbon is about equivalent to 28g. I have 28g,30g,32g round as well as both sizez of ribbon, all kanthal A1. I think 30g round 0.5mm ribbon would be a good place to start.

There are a ton of places to get supplies from, but Kidney Puncher is pretty much a one stop shop for rebuildable supplies and their prices seem to be fair (plus they are fairly close to me so I get my stuff with in a couple days :D).

If I had to give you a recipe to start with I would say something like below then tailor to suit:

RDA
- IGO-W
- 0.5mm ribbon or 30g round
- 2.5mm silica wick
- ~1.8 ohm coil

RBA
- RSST
- 0.5mm ribbon or 30g round
- Mamu Chimi wick or SS Cable or possibly Mamu Chimi wick using ss cable instead of mesh...but keep an eye on the ceramic
- ~1.8 ohm coil
 
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