If you quit smoking for better health, your mod choices just went down from 1000's to about 5

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dr g

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Fixed it.

Look, I have several very high end Thermometers - Surface, Air, fluid, Thermal to mention a few. All have some very sophisticated internal components. The Probe tip is the END Game, not the casing. The Coil is the working component in the dna Temperature Control, not the Atomizer.
To say otherwise is simply sales hype. Fire a coil directly off the dna +/- connections, even without an Atomizer and the dna should attempt to control Temperature of the coil. Agreed?

Pedantic and meaningless distinction. You are making bad claims and supporting them with irrelevance. Whether I said coil or atomizer is insubstantial. The point is that the device does in fact measure and control temperature.

What I think variable temperature would do would be to allow me to nudge coil temp up or down like I currently can nudge voltage or watts up or down. What the DNA chip does is REDUCE power IF the coil reaches the MAXIMUM temperature you've set (which it calculates by measuring the resistance and doing a conversion based on the properties of Nickle wire - not by directly measuring temperature).

Not sure what you think every thermometer in existence does, but "directly measuring temperature" consists of monitoring the change in something else, from resistance to the physical expansion of a liquid such as mercury.

There IS a difference.
Let's say I want to vape at 400 degrees.
On a DNA, I set the temp to 400 degrees. But I'm at 20 watts. And my 20 watts is only producing 350 degrees. The DNA chip is happy with that - I am SETTING the watts, and LIMITING the temperature.
Variable Temp would (hopefully) adjust power as necessary to quickly reach and then maintain my 400 degrees.

You can simulate this with a DNA chip I suppose, by always having your power setting too high - so that the temp limit always kicks in...I'm not sure if that's how people are using it, but I don't think so. I think people who like it are just happy when the temp kicks in and protects them from burning a wick.

That is a nice feature. It's just not the same as selecting a coil temp to run at.

There is not a meaningful difference. Within the desired operation of an ecigarette, this is how you want to control temperature, you don't want it to idle at vaping temperature. Every temperature controlled device in existence has the same characteristics, it won't hit temperature if there isn't enough power to hit temperature, but it will try. The DNA40 does just what you said, it adjusts power as necessary to quickly reach the set temperature, it even goes above set wattage.
 

Mtek

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all this talk of critical thinking - here is some critical thinking, you all know damn well in your heart that when you heat things up past a safe temperature, bad changes occur, and then you want to breath that? - and then wonder why you have health problems? - especially now that we finally have a CHOICE and can buy a much safer device? - that is critical thinking! - good grief!

Critical thinking with this logic would be for me to advise you to quit vaping and take out all variables and unknown risks. You have always had a choice too, don't use a device at all.
 

Angel Eyes

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My health has drastically improved since quitting combustibles and beginning vaping.
I appreciate your concern. At the same time, you list yourself as a NASA engineer. I'm a great fan of what NASA was and of space exploration. If you work for NASA as an engineer, I fear for the future of NASA. And science.
You present as an alarmist and one who accepts pop-science as gospel.
Honestly, even if all you say is true, your flawed and emotional diatribe has negated any credibility you may legitimately possess.
You rant as a mindless fanatic, not as a scientist.
Reframe and reorganize your argument, or just go away. If you do not, no one will take you seriously.
At this point, all I see of you is a frightened pawn spewing propaganda.
Peace and Health to you!
remember what I said about the amount someone throws insults is directly proportional to their insecurity level? - dude, your insecurity is off the chart!

what could possibly be so bad in your life to elicit such an ugly abusive reply?
 

Angel Eyes

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What actually totally negates the purchase of one of those things, for me, is the price -- $200? $300? Seriously??? I had a very hard time affording my first little eRoll at $39.95; my sigelei was also $39.95, and my iTaste vv3s were like $27 -- my Vamo was $17! When you're talking hundreds of dollars for something, you're in Provari territory, and I not only don't live there, I can't even afford to visit! :facepalm:

Andria
Andria you are entertaining! :) - however, let's just look at how much you spent chasing the ideal vape, all of those you mentioned add up to nearly the cost of a vaporshark!
 

Augmented Dog

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remember what I said about the amount someone throws insults is directly proportional to their insecurity level? - dude, your insecurity is off the chart!

what could possibly be so bad in your life to elicit such an ugly abusive reply?

J'accuse?
Accuser, recognize thyself.
I've "thrown" not a single insult at you. Actually, if you take care to look back, I've defended your intention. The fact that you could possibly take any of what I've said as such is rather telling.
I suppose, that sometimes, honesty hurts.
If you own a mirror, take a good, hard look at the person staring back at you through the glass.
I am now done with you.
Peace.
 
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fogging_katrider

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Andria you are entertaining! :) - however, let's just look at how much you spent chasing the ideal vape, all of those you mentioned add up to nearly the cost of a vaporshark!

in all fairness to Andria in regards to your remark...
Vaporsharks dont sell for thirty or forty dollars every once in a while whenever the buyer can afford to fork out another lump.
 
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AndriaD

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Andria you are entertaining! :) - however, let's just look at how much you spent chasing the ideal vape, all of those you mentioned add up to nearly the cost of a vaporshark!

But just one mod would never do -- I have the Sigelei and Vamo in continuous use, and use the vv3s here and there with other flavors I vape from time to time -- what I need is another couple of kayfuns, not a $200/$300 mod!

Once I found the Kayfun, I stopped chasing anything -- found the perfect vape in that $32.95 clone.

Andria
 

AndriaD

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in all fairness to Andria in regards to your remark...
Vaporsharks dont sell for thirty or forty dollars every once in a while whenever the buyer can afford to fork out another lump.

Exactly my point -- they're FAR beyond my means. I'd love a caddie or a BMW too, but I can't afford those either.

Andria
 

crxess

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Pedantic and meaningless distinction. You are making bad claims and supporting them with irrelevance. Whether I said coil or atomizer is insubstantial. The point is that the device does in fact measure and control temperature.



Not sure what you think every thermometer in existence does, but "directly measuring temperature" consists of monitoring the change in something else, from resistance to the physical expansion of a liquid such as mercury.



There is not a meaningful difference. Within the desired operation of an ecigarette, this is how you want to control temperature, you don't want it to idle at vaping temperature. Every temperature controlled device in existence has the same characteristics, it won't hit temperature if there isn't enough power to hit temperature, but it will try. The DNA40 does just what you said, it adjusts power as necessary to quickly reach the set temperature, it even goes above set wattage.

Wow, I guess specific wording only works if YOU are you and you use those words.

Gotcha

I'm out:facepalm:
 

sando7

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on the charred wick thing, just from my limited experience it seems to be caused by to much wicking material thru the coil that stops the wicking ability max potential, besides i know for myself i change out my wicks at least every other day on my main devices, hence no charring especially if you keep it wet like your suppose too.
 

Train2

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Not sure what you think every thermometer in existence does, but "directly measuring temperature" consists of monitoring the change in something else, from resistance to the physical expansion of a liquid such as mercury.
This is true, and a valid point. I'm not convinced from reading user experiences that the current process - of calculating temp based on known properties of nickel wire in the coil - is consistently getting an accurate temperature result.


The DNA40 does just what you said, it adjusts power as necessary to quickly reach the set temperature, it even goes above set wattage.
Are you certain of this? I haven't seen EVOLVE claim that the temperature setting over-rides the wattage setting. Quite the reverse - EVOLVE has said it is a Temperature LIMIT - and I would expect it NOT to "reach for the set temp" but ONLY to kick in IF or WHEN the temp is reached - if ever.


you don't want it to idle at vaping temperature
Why not?
 

caramel

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While the intention looks good, the approach is less than ideal. Evolv chose Ni200 for its high variation of conductivity with temperature (it will basically double its resistance when reaching 450F) probably with the idea that more variation = more precise measurement with the ADC they use. The side effect of this choice is that, due to the high conductivity of Ni, the coils will be subohm and put a lot of stress on the whole circuit, plus some serious reading errors due to the contribution of mechanical contacts. There's a reason why you want low resistance (thick wires) for your house wiring and high resistance (thin filaments) inside your light bulbs. You want only the filament to become incandescent, not the whole circuit (and ultimately the house too :evil:). Here Evolv traded the inherent safety of a high resistance coil for a novelty that would differentiate them from other vendors - but doesn't really work (garbled screens anyone?).
 

dr g

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While the intention looks good, the approach is less than ideal. Evolv chose Ni200 for its high variation of conductivity with temperature (it will basically double its resistance when reaching 450F) probably with the idea that more variation = more precise measurement with the ADC they use. The side effect of this choice is that, due to the high conductivity of Ni, the coils will be subohm and put a lot of stress on the whole circuit, plus some serious reading errors due to the contribution of mechanical contacts. There's a reason why you want low resistance (thick wires) for your house wiring and high resistance (thin filaments) inside your light bulbs. You want only the filament to become incandescent, not the whole circuit (and ultimately the house too :evil:). Here Evolv traded the inherent safety of a high resistance coil for a novelty that would differentiate them from other vendors - but doesn't really work (garbled screens anyone?).

off the mark on all points unfortunately
 

Dampmaskin

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this is because you set your temperature limit too high, thereby defeating its purpose, try 400 or below and you will NEVER char a wick! :)

Oh, interesting. Would you be willing to bet on that?

If I can uplooad a video showing myself charring the cotton wick on my DNA 40 mod with the temperature set at 400 F, I win. If I cannot, you win.

I am, of course, free to choose whatever atomizer I'd ike. For example, an atomizer with a spring loaded center pin, with a flimsy spring that hasn't been cleaned in a while.

Alternatively, you can choose the atomizer (at least if you choose a Kayfun 4 and have it shipped to me) and I choose the build. For example a dual coil build. I can even juice up one of the wicks for you. ;)

So... are you up for it?
 
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Dampmaskin

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I'm not convinced from reading user experiences that the current process - of calculating temp based on known properties of nickel wire in the coil - is consistently getting an accurate temperature result.

It does not. Every resistance thermometer needs to be calibrated, and as far as I understand the auto-calibration feature of the DNA40 cannot possibly take into account the "internal" resistance of the atomizer itself.

This I believe is the reason why the DNA40 will, in my experience, measure too low on atomizers with poor conductivity.

Avoid atomizers with spring loaded center pins, especially if the current passes through the spring. Mods with spring loaded center pins seem to be more likely to have the center pin directly soldered to the wire from the DNA, which is totally OK conductivity-wise.

OTOH, as long as the conductivity of the atomizer is good, the DNA40 is (again, in my experience) pretty consistent. Also between different builds. And also between different atomizers, as long as all of the atomizers have good conductivity.

I haven't seen EVOLVE claim that the temperature setting over-rides the wattage setting. Quite the reverse - EVOLVE has said it is a Temperature LIMIT - and I would expect it NOT to "reach for the set temp" but ONLY to kick in IF or WHEN the temp is reached - if ever.

This is correct. However, if you
1) Want to vape at less than 40W
2) Adjust the wattage of the DNA to 40W
3) Adjust the temperature to taste (so that it limits the wattage to somewhere below 40W)

... then you are in effect vaping with temperature regulation instead of power regulation.
 
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Maiar

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I don't sell anything - and ignore temperature at your own peril!

People warning about the dangers of cigs in the 1950's were not real popular with their message either, so I am in good company!

Heck, Gandhi, Jesus, MLK, and many others devoted their whole life to helping others and got killed for it!

Anybody got a cross and some nails?
 

Dampmaskin

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Here Evolv traded the inherent safety of a high resistance coil for a novelty that would differentiate them from other vendors
Since atomizers don't tend to burn down, I have to disagree with you on that. 16A is quite a bit of current, but i don't see how it makes the DNA40 less safe than, say, the DNA30.

The high current (or rather, the low resistance) does make it more difficult to get accurate temperature readings, though. And it can influence battery life negatively, as well as putting "stray heat" into your atomizer. But I haven't seen anyone's house burn down from the use of DNA40s yet, and I don't expect to.

A high resistance coil is inherently safer ... on a mech, because it limits the battery current. With a regulated device, it gets more complicated, and the resistance of the coil is no longer among the most important factors.

but doesn't really work (garbled screens anyone?).
Yes, that issue is annoying as hell. They shouldn't have rushed it. But not all of the boards were bad, and as far as I know the issue has been fixed now. Don't confuse poor execution (at least initially) with a poor concept.

I have vaped on two bad DNA40s myself, and both actually sort of worked, most of the time. Now I have a good one, and this one definitely works all of the time, at least so far.
 
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Maiar

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Oh, interesting. Would you be willing to bet on that?

If I can uplooad a video showing myself charring the cotton wick on my DNA 40 mod with the temperature set at 400 F, I win. If I cannot, you win.

I am, of course, free to choose whatever atomizer I'd ike. For example, an atomizer with a spring loaded center pin, with a flimsy spring that hasn't been cleaned in a while.

Alternatively, you can choose the atomizer (at least if you choose a Kayfun 4 and have it shipped to me) and I choose the build. For example a dual coil build. I can even juice up one of the wicks for you. ;)

So... are you up for it?

That's coming dangerously close to him posting some actual proof. And come on... get real... lol.
 
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