Official DNA 40 introduction

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Coldpunk

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Since we can't fire coils orange to help shape them, we could set it to 600 and see how malleable nickel is once heated to that range. If it's still a no go to get an ugly coil reshaped, we may want to invest in wire jigs. I use one called a qvapes coiler and have never built cleaner coils. Fully intend on using it with all my future builds. Has a 2.5mm bit being the largest (and my favorite) and gets smaller from there. I may try a dual in series coil with 28 gauge on my kayfun. That should keep the ohms above 0.1 wrapped around a 2mm bit

I've been using a Qvapes cooler since the spring and I love it. I was tension wrapping micros before it was a thing, I realized pretty quickly that I didn't need to torch and squeeze if I used the coil jig properly. It's also nice to be able to leave the coil on the mandrel when installing it in an atty, there's no way for the action of tightening down the screws to torque the coil. The mandrel acts as a counter torque and keeps the coil neat.
 

dr g

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I think that in principle your not supposed to allow nickel to glow orange due to contaminants

oxidation mainly. this is also a concern with other wire types as well, along with pitting and metal fatigue, so who knows what the best practice is. I'm still trying to decide myself how much of a stickler i want to be about this.

I recently rewicked a kayfun coil I was using a somewhat dirty juice in (5pawns castle long reserve). it had some carbon and gunk buildup on it. i tried just water and alcohol, and a damp paper towel. a bunch came off and a bunch didn't. you might be able to "pop" the carbon off at regulated temperatures with water or some other liquid. you also have to be careful when handling the coil because it's soft. rewicked with cotton and it vapes great again. but i definitely didnt get it as clean as i have gotten coils by dry burning.
 

Bassnorma

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Anyone try heating they coil up to regulated temps, then dipping it in water while continuing to fire it?

Not unless I want tea...Lol

Oh wait, I am being a smart ......something a surly curmudgeon might surely understand...were you serious or did I rightly detect a massive dose of Rossum brand sarcasm there?

(sent from Mars, it's not as red as I imagined.)
 
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folkphys

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So you're saying that when I used to char up a couple of taco sleds (tortillas) in my dorm room, many years ago on an unsafe for other reasons single plug in old-style resistance coil element pot boiler type deal, when I was blissfully chomping away in Tacotown I might have been consuming - in addition to the carcinogenic carbonized glutens - some bits of nasty metal flakes?

Yay. I miss college.
 

KGie

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YES! :)

For others which is the conversation you and moi recently had. It's a given that we are all concerned about the appearance of any "taste" when we use Nickel 200 (Ni200). Next we desperately need an unbiased scientific study which tells us what (if any) nasty chemicals are emitted and the levels of same into the juice/vapor when we vape using Nickel 200 (Ni200) and Kanthal.

The crowd funding has already started for this study conducted by Dr. Farsalinos (see my sig) /lol and IMHO it's critical that we encourage VENDORS to contribute since they are the target funding source. Nudge, push, convince, etc. Whatever it takes. Of course, this doesn't prohibit any of us "consumers" from contributing.

:)

/end commercial

Thank you

On Dr. Farsalino's Indiegogo campaign page, in the campaign notes (which are in an Update toward the bottom of the page), Dr. F. takes note of the new generation of temperature regulated mods:

"... We are going to test these devices, not only to see that temperature control is indeed a reality, but also (and most importantly) to see the levels of vapor production (which is a measure of satifaction for the vaper) and the effect of temperature control on aldehyde emissions to the vapor. The latter will show the true impact of temperature control on safety..."

You can leave a comment when you contribute (which can be any amount you want, by the way, it's not limited to the $600 default). In my comment, I suggested that he also test whether the nickel coils are giving off nickel fumes that are getting into the vapor. There aren't that many comments -- mine was three day ago, and it's still the most recent comment -- so I'm guessing he's reading them all. If he hasn't already decided to test for nickel, I expect just a few more comments asking him to do so would probably do the trick.
 
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KGie

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So you're saying that when I used to char up a couple of taco sleds (tortillas) in my dorm room, many years ago on an unsafe for other reasons single plug in old-style resistance coil element pot boiler type deal, when I was blissfully chomping away in Tacotown I might have been consuming - in addition to the carcinogenic carbonized glutens - some bits of nasty metal flakes?

Yay. I miss college.

Well, maybe, but the amount would depend: did you stick your nose right over the heating element and inhale deeply? If not, I doubt you got enough to be significant.
 

KTMRider

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My VF 40 is OFD but wire won't get here till next week. [emoji24] [emoji35]

I'm waiting for VS to start shipping. I'll probably pick one up from their store in a couple of weeks but I already ordered some Ni200 30g wire. If the reviews on the VS doesn't look good, I'll find another DNA 40 device.
 

spewny

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My VF 40 is OFD but wire won't get here till next week. [emoji24] [emoji35]

Wire was supposed to be tomorrow or even next week, but the stars aligned :) Just finished a build in the magma at .16 and it is friggin NICE! Only a single coil and set at 410F, I'm laughing that it steps down to 15-17w after the temp protection kicks in. Lots of vapor still, and cool as can be. Time to start playing with the kayfuns I think :)
 
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