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NI200 Coil Builds with a DNA 40 Device

Giraut

Gold Contributor
Member For 4 Years
For what it's worth, I've just tried the heat-dunk-anneal cleaning method on a really gunky Ni200 coil: it works dandy. One dunk and it's squeaky clean. But there are three caveats:

- It seems to be rather hard on the coil: mine deformed a bit after dunking. This doesn't seem to happen with kanthal. I simply straightened the coil after annealing with a screwdriver, and it seems fine though. The resistance also increased by .02 ohm, but then it does so when I do the first dry-burn on a new coil anyway, so it may or may not be related to the thermal shock.

- Don't dunk the coil with TC enabled: the DNA40 seems to lose its marbles completely for a while afterward :) I suppose the sudden drop in resistance confuses the hell out of the base resistance measurement fine-tuning algorithm.

- Dry the atomizer, coil and posts thoroughly before re-wicking, else the temperature regulation won't quite work properly until all the water is gone.

I'll keep doing this method on this coil as it gets gunky again, to see if it lasts any longer than when I dry-burn it clean. Stay tuned...

EDIT: I made this video, to show how it works with Ni200 coils:


Replying to myself here, but...

I'm on my 5th heat-dunk-anneal cycle on the same nickel coil, and I find it's working tons better than a regular dry-burn: the coil only deforms and changes resistance slightly the first time. After that, it doesn't move anymore, and the resistance stays exactly the same to within .01 ohms - meaning the wire isn't thinning out or wasting away.

Also, it's a lot easier on the atomizer's insulator, because it doesn't heat it up remotely as hard. And you don't have to wait forever for the atomizer and coil to cool down for TC to recover its bearing, so to speak.

So, this method seems to be a winner with Ni200 as well. I think this coil is going to last a very long time!
 

tchavei

Member For 4 Years
Has anyone else tried using Ti grade 1 ? if so please let me know your method and how it's working for you.
Hi.

I'm using certified titanium grade 1 28g (or maybe 0.34mm) for a week now in my dna 40. 6 spaced wraps on a 2.5mm mandrel come out at 0.32 Ohms. Flavor is good and I rewicked for the first time today. Didn't need to dry burn. Just hot tap water and a tissue to remove any small gunk I've found.

I think it's a very durable coil. With hardened nickel, although easier to build, I always had trouble rewicking as the coil would tend to distort. What's worse is that ni 200 tends to become brittle over time with the constant heating/cooling and will snap easily.

Titanium grade 1 28g:

36a228c15e9d132df0d6fd980d33e8ed.jpg


Ni 200 30g:

c6b32e5f0647777389e8cd68f26e143d.jpg


Ni 200 28g:

3d9f36626a517586b181fd593f5aaba4.jpg


Regards
Tony

Sent from my keyboard through my phone or something like that.
 

livelongandvape

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Well we need to start a Titanium coils on the Temp control mods thread... Nice pics, Tony. How do you allow for the offset in temp we see from Ti vs Ni200? I just shave off 100 degrees. Curious what you do. I also have been using Native Wicks, goood stuff.
 

tchavei

Member For 4 Years
Well we need to start a Titanium coils on the Temp control mods thread... Nice pics, Tony. How do you allow for the offset in temp we see from Ti vs Ni200? I just shave off 100 degrees. Curious what you do. I also have been using Native Wicks, goood stuff.
Thx.

About the offset... At first, I believed I could easily calculate it based on the temperature coefficient of both nickel (0.006) and titanium (0.0038)

As it happens, it doesn't work so well because I did the water test and both coils sit happily at 212F

After a bit experimentation I found that 350F on titanium would give me a similar vape to nickel at 440F (90F offset) and it has been working great so far.

Regards
Tony

Sent from my keyboard through my phone or something like that.
 

Giraut

Gold Contributor
Member For 4 Years
Replying to myself here, but...

I'm on my 5th heat-dunk-anneal cycle on the same nickel coil, and I find it's working tons better than a regular dry-burn: the coil only deforms and changes resistance slightly the first time. After that, it doesn't move anymore, and the resistance stays exactly the same to within .01 ohms - meaning the wire isn't thinning out or wasting away.

Also, it's a lot easier on the atomizer's insulator, because it doesn't heat it up remotely as hard. And you don't have to wait forever for the atomizer and coil to cool down for TC to recover its bearing, so to speak.

So, this method seems to be a winner with Ni200 as well. I think this coil is going to last a very long time!

I've just done my 7th cleaning cycle using this method. The coil shows no sign of quitting. I love it :)
 

omghax

Member For 4 Years
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I thought that we were trying to avoid dry burning the nickel? Also running the device with such a low ohm isn't that bad for the battery?

Thanks
 

Giraut

Gold Contributor
Member For 4 Years
I thought that we were trying to avoid dry burning the nickel? Also running the device with such a low ohm isn't that bad for the battery?

It's perfectly okay to dry-burn a nickel coil clean, but it doesn't last as long as with the dunking method. As for the battery, it doesn't "see" the coil's resistance directly - the mod takes care of the voltage conversion, to maintain reasonable power levels that won't overload the battery.
 

livelongandvape

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After a couple years of dry-burning coils I no longer do it with kanthal and certainly not Ni200 or my preferred titanium. I have read enough to come to my own conclusion that torching these metals red is not as "healthy." But to each his own.
 

dingo1799

Bronze Contributor
Member For 4 Years
I thought that we were trying to avoid dry burning the nickel? Also running the device with such a low ohm isn't that bad for the battery?

Thanks

in general terminology....
most regulated mods, and dna mods don't count, theyre designed to run om such low resistance coils.;)
 

dingo1799

Bronze Contributor
Member For 4 Years
in other news, got my ti gr 1 wire, about to start building a ti coil setup. i pulled the trigger without thinking and got .5mm wire o_O
 

livelongandvape

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in other news, got my ti gr 1 wire, about to start building a ti coil setup. i pulled the trigger without thinking and got .5mm wire o_O
That .5mm is the same size as the 24 AWG I have been using. My surgical grade 1 from Etsy has a greyish finish not shiny off the spool. Very clean though. Same with yours? Where'd you get it?
 

dingo1799

Bronze Contributor
Member For 4 Years
Amazon, $12 for 50ft G1 I'll mess with it n try it, n when I remember, look for some smallerish ga
 

Giraut

Gold Contributor
Member For 4 Years
I've just done my 7th cleaning cycle using this method. The coil shows no sign of quitting. I love it :)

Again, replying to myself...

I've just done my 10th cleaning cycle on the same coil. It still works fine, looks like new, and the resistance hasn't moved even .01 ohm. Amazing! At this rate, I'll die of old age before this coil does :)
 

Dave Sak

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[olQUOTE="Giraut, post: 442618, member: 5029"]Again, replying to myself...

I've just done my 10th cleaning cycle on the same coil. It still works fine, looks like new, and the resistance hasn't moved even .01 ohm. Amazing! At this rate, I'll die of old age before this coil does :)[/QUOTE]
L
 

tchavei

Member For 4 Years
I'm on the same coil since April, 16th. :)

I love the smell of Ti in the morning... If Ti had any smell that is :D

Regards
Tony

Sent from my keyboard through my phone or something like that.
 

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