Official DNA 40 introduction

Status
Not open for further replies.

aldenf

Ultra Member
ECF Veteran
Verified Member
Jun 26, 2014
2,558
10,293
NYC, NJ, USA
I LOVE the concept of the dna 40/25's new technology. Who doesn't want to avoid burning anything and protect our well-being? Except for the "enthusiast vapers", however, I'm thinking it will be too expensive and busy for the rest of us to adopt. I'm withholding a final opinion until both dna 40 & 25 devices hit the shelves...

By the way, does anyone know how the Ni200 holds up in use? Does it need to be replaced more/less often than KA1? I assume, with the temperature control technology, that dry-burning/re-wicking is required MUCH less frequently if at all? I'm really trying to get a grasp of all the benefits of the new technology.

Thanks!
 

rurwin

Ultra Member
ECF Veteran
Verified Member
Jan 6, 2014
1,072
1,285
Leicester, UK
The reason for using nickel instead of Kanthal is the temperature coefficient of resistivity.

Between room temperature and 500C, Kanthal increases is resistance by about 2%
Over the same range, nickel's resistance increases by five times.

See: http://www.isabellenhuette.de/pdf/WIDER_LEG/SUPER-PURE-NICKEL-ISABELLENHUETTE-R.pdf

It makes it much, much easier to measure the resistance change. But it also makes it safer. That 0.07 ohm coil you just built turns into a 0.35 ohm coil at 500C, which makes it only 50W on a mech mod. That may still burn liquid and wicks, but if you go a bit higher, 0.28 ohms would take maybe 12W when the temperature went up too high. It might vape very well on a mech. It might even give you the something like same temperature control effect.

This is the DNA I have been waiting for. Time to get stuff together for my DIY box mod.
 
Last edited:

VBdev

Super Member
ECF Veteran
Verified Member
Jun 14, 2014
428
797
Virginia Beach, VA
Bold above, is my edit.

This is not true in the united states.

The only time the US has ever pulled nickel from coinage was in 1942, replacing the nickel content in the nickel with silver and manganese. That ended in 1946 and the composition went back to 75% copper and 25% nickel where it remains to this day.

The rest of our silver colored coins are 8.33% nickel and have been since 1965. Before 1965 they did not contain ANY nickel.

So, really, we've done more adding of nickel than removing.

US hasn't but some countries have specifically reduced or removed nickel use in their coinage because of health concerns. Canada's reducing, but for weight reasons. Sweden did so for health concerns. There's some drama over the relatively high content in 1euro 2euro coins, but no change for now. There are regulations for jewelry and other items in close contact with the skin. There are a lot of women out there having some womenly medical devices replaced because of nickel content as well.

Here's where I'm at, for me, personally,
Some people are sensitive to nickel, on the outer skin it can cause pretty bad rash. Not sure what it does to the innards but not good if you are sensitive. Sensitivity to nickel can develop, just because you are not sensitive today does not mean you won't become sensitive (so if some symptons develop down the road keep that in mind). There are other concerns but those may be compound specific and as Rosumm correctly enlightened me, do not appear to be vastly different kinds of concerns than I should also be evaluating with kanthal A1 (which is what I'm using today).

I've been handling nickel coins, eating food, drinking water, touching dirt, breathing...and a lot of other ways have come into contact with nickel, all my life and don't know of a specific concern for me. Since I've done some research I know to keep my eye out. If I get a rash, no biggie stop touching the nickel, I'll know what the issue is and the rash will go away. I'd like to see something that makes me more confident that nickel won't be in the vape I'm inhaling... Or if there is some, what are the levels. Hard to believe there won't be some.

The other side of the coin is the prevention of dry hits...that always worried me but still took that dripper pretty dry when I was about to switch up flavors. There's clearly a reduction of harm there.

I'm excited about the technology and will likely adopt. I'll keep my eye on nickel info, hope evolv shares what they have, hope more studies are done. If I have any reaction, or notice anything different throat / lungs, well then back to kanthal and I'll still love my sweet new mod. 10 bux more for 10 watts more, a couple other new bells, and a temp feature I ended up not using won't be too bad. If all goes well, then it's a great feature. Wonder if it can be accomplished in other ways as well and if those other ways could be as accurate or more so.
 

RebelGolfer72

Moved On
ECF Veteran
Apr 28, 2010
1,604
3,451
Pittsburgh, PA
US hasn't but some countries have specifically reduced or removed nickel use in their coinage because of health concerns. Canada's reducing, but for weight reasons. Sweden did so for health concerns. There's some drama over the relatively high content in 1euro 2euro coins, but no change for now. There are regulations for jewelry and other items in close contact with the skin. There are a lot of women out there having some womenly medical devices replaced because of nickel content as well.

Here's where I'm at, for me, personally,
Some people are sensitive to nickel, on the outer skin it can cause pretty bad rash. Not sure what it does to the innards but not good if you are sensitive. Sensitivity to nickel can develop, just because you are not sensitive today does not mean you won't become sensitive (so if some symptons develop down the road keep that in mind). There are other concerns but those may be compound specific and as Rosumm correctly enlightened me, do not appear to be vastly different kinds of concerns than I should also be evaluating with kanthal A1 (which is what I'm using today).

I've been handling nickel coins, eating food, drinking water, touching dirt, breathing...and a lot of other ways have come into contact with nickel, all my life and don't know of a specific concern for me. Since I've done some research I know to keep my eye out. If I get a rash, no biggie stop touching the nickel, I'll know what the issue is and the rash will go away. I'd like to see something that makes me more confident that nickel won't be in the vape I'm inhaling... Or if there is some, what are the levels. Hard to believe there won't be some.

The other side of the coin is the prevention of dry hits...that always worried me but still took that dripper pretty dry when I was about to switch up flavors. There's clearly a reduction of harm there.

I'm excited about the technology and will likely adopt. I'll keep my eye on nickel info, hope evolv shares what they have, hope more studies are done. If I have any reaction, or notice anything different throat / lungs, well then back to kanthal and I'll still love my sweet new mod. 10 bux more for 10 watts more, a couple other new bells, and a temp feature I ended up not using won't be too bad. If all goes well, then it's a great feature. Wonder if it can be accomplished in other ways as well and if those other ways could be as accurate or more so.


One thing most people don't think of when the fears about nickel sensitivity comes in to play with regards to the coils here
-- the majority of Vapers out there do NOT use rebuildable devices
-- most of the off the shelf clearos are primarily nickel plated brass or pot metal
-- almost all premade coils for cartos, clearos and tanks in general (ie vivi nova, aspire, Kanger etc) are coiled with NiCr wire and NOT Kanthal. most nichrome is 80% nickel, 20% chromium.
-- all of the pre-made coils are already using Nickel-200 legs to attach the NiCr coils

In other words, more people are already using a lot of nickel in their devices already. Since they are not touching the nickel physically, it's not a problem. Nickel does not leech out into the juice, nor will it into the vapor.

So looking at things logically, pure nickel wire is probably safest wire out of the current options (NiCr has chromium, which some isotopes are very dangerous. kanthal is iron,copper and aluminum. Kanthal also pits badly, and will expose the users to those elements. Likewise copper, aluminum and iron are much more reactive than pure nickel)
 

mikepetro

Vape Geek
ECF Veteran
Verified Member
Feb 22, 2013
10,224
81,686
67
Newport News, Virginia, United States
So if this is non-resistance wire....what happens when I take my nickel-coiled topper and mistakenly put it on my mech mod?

Dead short?

Anyone know?

I did it twice, the coil simply popped......
And I said "Oh SNAP"......
 

Dampmaskin

Ultra Member
ECF Veteran
Verified Member
Jan 28, 2014
1,042
1,157
Norway
www.steam-engine.org
Yes, I think he said something like $10 - $15 more than the DNA30.

I developed a painful rash on the bridge of my nose when I used cheap nickel coated glasses a couple decades ago, but I didn't notice anything when I got into vaping using cheap clearos a year ago. I guess it's time I took some of that Nichrome I've got lying around, and tried it in a dripper. Hoping for the best...
 

dr g

Moved On
ECF Veteran
Mar 12, 2012
3,554
2,406
Paradise
Bottom line it would probably be best to have RBAs dedicated to this unit--identifiable in some fashion---if going the nickel//T control route?
At the least it's going to perform much differently or unexpectedly on a different setup
at worst there a possible safety issue or the wire will just fail? (if I read DrG correctly)

Thanks, I was going to pick up a VS rDNA but am now going to wait a bit until the 40. I still think part of this new feature is to preempt and trump another FDA "issue" that will come up (i.e overheating of juices) while giving us a better experience as well.

I don't really think there is much of a safety issue if you are using 20-30A batteries. IMO there is far more of a safety issue with the mech mod itself.
 

Limpar

Senior Member
ECF Veteran
Jan 23, 2011
80
60
UK
One thing most people don't think of when the fears about nickel sensitivity comes in to play with regards to the coils here
-- the majority of Vapers out there do NOT use rebuildable devices
-- most of the off the shelf clearos are primarily nickel plated brass or pot metal
-- almost all premade coils for cartos, clearos and tanks in general (ie vivi nova, aspire, Kanger etc) are coiled with NiCr wire and NOT Kanthal. most nichrome is 80% nickel, 20% chromium.
-- all of the pre-made coils are already using Nickel-200 legs to attach the NiCr coils

In other words, more people are already using a lot of nickel in their devices already. Since they are not touching the nickel physically, it's not a problem. Nickel does not leech out into the juice, nor will it into the vapor.

So looking at things logically, pure nickel wire is probably safest wire out of the current options (NiCr has chromium, which some isotopes are very dangerous. kanthal is iron,copper and aluminum. Kanthal also pits badly, and will expose the users to those elements. Likewise copper, aluminum and iron are much more reactive than pure nickel)

Kanthal is Iron Chromium and Aluminium. No copper in it at all.

Also what if someone rebuilds instead of using cartos with premade coils, in order to avoid nickel!
 

Dampmaskin

Ultra Member
ECF Veteran
Verified Member
Jan 28, 2014
1,042
1,157
Norway
www.steam-engine.org
Also what if someone rebuilds instead of using cartos with premade coils, in order to avoid nickel!

Then they should avoid Ni200 too, I guess. There are many different wires to choose from, and many different mods and boards as well.

From what I've read it's even possible to get a certain degree of temperature regulation with titanium wire, if avoiding nickel is a priority. And if titanium is not your thing, you can even use kanthal, even though you won't be able to benefit from temperaure regulation when you use a coil material with as low a temperature coefficient of resistivity as kanthal has.
 
Last edited:

KGie

Super Member
ECF Veteran
Mar 13, 2014
328
282
Tampa, FL USA
One thing most people don't think of when the fears about nickel sensitivity comes in to play with regards to the coils here
-- the majority of Vapers out there do NOT use rebuildable devices
-- most of the off the shelf clearos are primarily nickel plated brass or pot metal
-- almost all premade coils for cartos, clearos and tanks in general (ie vivi nova, aspire, Kanger etc) are coiled with NiCr wire and NOT Kanthal. most nichrome is 80% nickel, 20% chromium.
.
.
.

Interesting post. Can I ask where you got the info that most commercially available coils are made with nichrome and not Kanthal? Thanks!
 

Limpar

Senior Member
ECF Veteran
Jan 23, 2011
80
60
UK
Then they should avoid Ni200 too, I guess. There are many different wires to choose from, and many different mods and boards as well.

From what I've read it's even possible to get a certain degree of temperature regulation with titanium wire, if avoiding nickel is a priority. And if titanium is not your thing, you can even use kanthal, even though you won't be able to benefit from temperaure regulation when you use a coil material with as low a temperature coefficient of resistivity as kanthal has.

The upcoming VIR is a temperature controlled device using titanium. But to be honest, I'm not that keen on titanium either.
 
Status
Not open for further replies.

Users who are viewing this thread