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TheBloke

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24g Ti-G1 from unkamen. 7/6 wrap, 2.8mm id, .4mm spaced coil wound on a machine screw. It's the longest coil I can comfortably fit on a STmini rba deck, which btw has about .01 ohm SR.

I have some 30g. I'll twisted some up and build a .4 ohm coil. It has about the same heat flux as the 24g.

I think 2x30 is going to come out similar to 27G. When I do 2x29 it's fairly similar in size/resistance to 26G.

Do you have any problems with your existing vape? By all means experiment of course, I just wouldn't want you to think that you need to go to 0.4, or any given resistance, to get a good, accurate-enough vape.

The accuracy numbers are mostly for comparing wires to each other. And they have relevance for very low TCR material like SS, where one certainly wouldn't want to build low resistance and higher resistance would make a more noticeable difference.

With Titanium, I'm pretty sure it's all good. Higher resistance certainly can't hurt, but personally I wouldn't build higher at the expense of building the coil I otherwise wanted to build.

Then again, twisted wire can have advantages for flavour, so if you think you'll like the 2x30 coil just as much or even more than the 24, then of course the accuracy is an added bonus.
 
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cigatron

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Interesting - so 2x30 is actually almost exactly the same as 28, resistance wise.

Looks that way but something I've noticed with twisted on SE is that it really hasn't been accurate with twisted builds. At least it hasn't been for my kanthal builds. I'll pre-anneal and twist some 30g Ti tomorrow and see.
 
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Croak

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My rule of thumb for tight drill twisted dual strand (of the same gauge) is to simply subtract two from the AWG number, and it matches up fairly close once built, give or take a few hundredth of an ohm.

Not sure how to do a quick and dirty calc for those frou-frou metric sizes favored in the YouK/Yurp though. :)
 

BigEgo

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It's now been done. Well, not TC. But 'dry hit prevention' has been implemented in the new iJoy by Asolo, and we've confirmed it uses resistance to do it.

It is, as you would expect, highly sensitive to the slightest amount of varying SR in the atomizer or build. But as all they need to do is detect the difference between "normal vape" and "dry hit", it does sort of work. Quite impressive. But my current feeling is not reliable enough to be a game changer - but I'm still in the process of testing it thoroughly.

DJSLB said in his video review that it appears to work. He showed dry burn tests, etc. However, Busardo said in his preview "Does the Kanthal dry burn protection work on the Asolo? Not really. But, I still have more tests to do." I am curious what he has to say about it in his final review.
 
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cigatron

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My rule of thumb for tight drill twisted dual strand (of the same gauge) is to simply subtract two from the AWG number, and it matches up fairly close once built, give or take a few hundredth of an ohm.

Not sure how to do a quick and dirty calc for those frou-frou metric sizes favored in the YouK/Yurp though. :)

For kanthal I've always subtracted 1-1/2 gauges for my twisted, but I twist ultra tight. 27 twists/in for 30g, 25 twists/in for 28&29g, 23twists/in for 26g. That's nearing max twists for those gauges before breakage, even when twisting at low rpm with ideal tension.

BTW, ribbit......
 
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jazzvaper

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Well, I bought some 26 awg SS 316L on a lark figuring I'd get around to testing it once my DNA 200 arrived and I began to 'get' its feature set.

OMG!!

Just built an 11 wrap on a 2.5 mm Kuro Coiler, showing 0.78 on my ohm meter. (A breeze to build and install.) I ignored the ohm reading wanting to simply move on (seemingly way high).

Wicked the base in an already filled SquapeRs with a known eliquid.

DNA Profile 3 is set to 316L temp to 420, watts to 28 = PLEASURE. Can go higher Temp but want a benchmark.

Few months ago I chastised some of the DNA 40 crowd about Evolv's "research" when choosing wire type and default settings. Appears now I was not merely "right" but hit the Bullseye.

Like cigatron I am going to build everything I have (RTA) in SS 316L until we can get our hands on NiFe52, which happens to now be Profile 2. [emoji106]

ETA: I see my error. Steam Engine was set to dual coil. Ripping this build out and going to five (5) wraps, single. [emoji6] ohm reader is 0.31, DNA 200 is 0.34.
 
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druckle

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OK interesting. Specs I've tested on other mods were wrong, but sounds like that one is real.

So unfortunately they actually put a hard limit in. They probably thought that >1.0Ω had to be Kanthal, so they would help users out by auto switching on an ohm-plus coil because they must have made a mistake.

With Ni200 that's a fair assessment. With Titanium it's usually going to be correct, but shouldn't be assumed. With SS it's plain wrong, but the Evic doesn't do SS so that's OK.

I always build Titanium to around 0.40, 0.50 as a max. I can't imagine myself ever going much above 0.5, let alone up to 1.0Ω, because I don't like thin wire and I can't fit a dozen or more wraps in (not that I'd want them anyway, as I exclusively use RTAs now and they don't have wide enough air holes.)

As I said to Mad Scientist, 0.20Ω Titanium is plenty accurate :) One of the many benefits of not using Ni200 any more is we don't have to be a slave to our builds. Build the coil you want, for the atomizers/decks you have and the vape properties you want. With Titanium, any build you make is going to be more than accurate enough - and more accurate than you had with Ni200.

Out of interest, what gauge and coil size are you using that comes out to 0.2? 24G? I do have two 24G Titanium coils running right now, which come to 0.25Ω - 0.28Ω
I generally wrap 24 gauge Titanium on a 3mm mandrel with 6 wraps and the resistance is almost always 0.2 ohms +/- depending on coil leg length/atty. A Kanger Subtank Mini is typically 0.20 ohms and an Ubertoot with the same coil is 0.27 ohms.

It's working for me but I haven't done any testing to determine what the real temperature limit is. I set my temp limit at 450F on a DNA 200 and get the vapor I want and no problems with wicks.

Duane
 

vapealone

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Y(...)
But anyway, Titanium is more than fine :)
The differences of, say, NiFe52 compared to Titanium is perhaps the difference between a Mercedes and a Ford.
Whereas Titanium to Ni200 is a Ford to..(...)
I resent the Mercedes comparison. Ti is the Mercedes. Might not be the best, but it has a name and "titanium" is a name way older than NiFe [emoji14]
Regards
Tony
Sent from my keyboard through my phone or something like that.
All right then the Titanium is the Mercedes and NiFe52 is a Pagani Huayra :)

I really don't want to make a pissing contest out of this thread but I think the Mercedes/Ford etc metaphor is a bit misleading.
Regardless of my own issues with Ti builds, my opinion is that Ti is superior to any single materials I have tried on the business end i.e. the quality of the vapor you get. ATM I can't tell if it beats my hybrids or not, time will tell but as a single material/simple coil material unbeatable.
But it is a high maintenance thing and definitely not as user-friendly as NiFe which is a pretty good all-around material.
Obviously, it is personal what floats one's boat.
ATM use quite a lot of different materials for different purposes:) And can hardly wait for the NiFe52 to add to the collection.
Probably I should assign different materials to different days e.g.: Monday is a no-brainer NiFe52, Tuesday Ti, Wednesday sounds good for a Clapton.. etc:)


P.S.: I have to admit that there was no huge wow when I have first tried Ti. However, the difference was more prominent when I did the change backward. I had enough of the issues of one of my Ti build so I have thrown in a quick NiFe and there was a bit of a WTF:) No biggie but noticeable:) Ti won't be my all-rounder but good to have:)

BTW: My CrazyWire Ti is true to its name: a wrong move and it un-spools itself immediately. And the 24ga is the worse. But I was on the run and had no time for a foreplay so just used my drill to self-twist it until it was completely straight (and strong like a sword:) ). Quick wash and a slow and steady coiling on a Revolver with a third to half overturn for the kick back and a result was a super strong super tight micro-coil. With some effort I carefully pulled the coil as if it was an extension spring until it decided not to close up again. And this is it:) Beautifully spaced super strong coils w/o any diameter change :) Then install and vape:)
DSC_0278 (800x535).jpg
 
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TheBloke

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I really don't want to make a pissing contest out of this thread but I think the Mercedes/Ford etc metaphor is a bit misleading.
Regardless of my own issues with Ti builds, my opinion is that Ti is superior to any single materials I have tried on the business end i.e. the quality of the vapor you get. ATM I can't tell if it beats my hybrids or not, time will tell but as a single material/simple coil material unbeatable.
But it is a high maintenance thing and definitely not as user-friendly as NiFe which is a pretty good all-around material.
Obviously, it is personal what floats one's boat.
ATM use quite a lot of different materials for different purposes:) And can hardly wait for the NiFe52 to add to the collection.
Probably I should assign different materials to different days e.g.: Monday is a no-brainer NiFe52, Tuesday Ti, Wednesday sounds good for a Clapton.. etc:)

I regret the Mercedes/Ford/whatever comparison :) I certainly don't want a pissing contest either.

The main point of my comparison was the one to Ni200. I was going for the idea that Ni200 -> Titanium was an enormous leap, and then Titanium -> NiFe was a question of a few % points of improvement (if one can judge such things in % points!)

Another analogy (which I'll caveat as being my own personal experience only): When one needs to commute to work, the difference between a push-bike and a car is a huge difference. This is Ni200 to Titanium. Then the difference of a basic car to a luxury car is, relatively, a much smaller difference. I might prefer to drive to work in a luxurious BMW than a basic Ford (or Skoda or VW or whatever), but the extra difference this brings to the commute is tiny compared to the enormous difference from cycling to work on a push bike versus getting there in the comfort of any car!

But I see the whole car comparison thing is fraught with problems so let's forget those :) There's probably a much better analogy out there.

Anyway, I say this is my experience. I have not noticed improvements in vapour/flavour/etc from Titanium. Maybe I'm missing something? I don't know. I'd be interested for you to elaborate on that.

What I find is that the handling characteristics and the dry burnability of NiFe - and Stainless Steel - gives me those few % extra of usability than Titanium.

I'm someone who doesn't get a kick out of building coils, because I most suck at it. I get broken wires. I get wires that won't stay under screw heads. I get builds I make too big and short/have to be adjusted. I have all these little problems, and I can get them with all wires, but I feel I get slightly more of them with Titanium.

So the wire that gives me the least of those problems, and gives me the most tools to fix them, gets a strong vote for me, other things being equal. And for me, they are equal. I haven't noticed significant vapour differences between different wires, at least assuming the same build.

i have 12 builds on my desk right now. Most are Titanium, two are SS, two are twisted NiFe. if I pick them up and vape, I can't tell the difference. If you can, I'd love to learn more about why/in what way?

So the fact that Titanium is springy and expands, that I can't dry burn it to clean or check a build carefully, these are the small % differences that, while I can certainly live with them, i'd rather live without.

I have heard one person, I forget who, say he got better flavour from Titanium than Resistherm. I don't know if he was comparing like-for-like - Resistherm is only available in 29G, so did he compare 29G to 26G? Did he twist the Resistherm? I don't know. I do find it hard to see why a particular wire could give different flavour, assuming identical builds - that is assuming none of the wires can change the flavour, as people say Ni200 can.

P.S.: I have to admit that there was no huge wow when I have first tried Ti. However, the difference was more prominent when I did the change backward. I had enough of the issues of one of my Ti build so I have thrown in a quick NiFe and there was a bit of a ...:) No biggie but noticeable:) Ti won't be my all-rounder but good to have:)

That sounds like what I am saying. It's not a vast difference, but it's a sort of "great, that was a bit easier" feeling. Which incidentally sounds exactly what @yo han and @jazzvaper have just experienced going to SS for the first time.

But then you say that you think Titanium is giving better vapour in some way? Can you elaborate? And is that definitely a like-for-like comparison?


completely straight (and strong like a sword:) ). Quick wash and a slow and steady coiling on a Revolver with a third to half overturn for the kick back and a result was a super strong super tight micro-coil. With some effort I carefully pulled the coil as if it was an extension spring until it decided not to close up again. And this is it:) Beautifully spaced super strong coils w/o any diameter change :) Than install and vape:)

Looks good - but also looks like the sort of careful tweaking that I find hard :)

The main thing for me with Titanium is that, unless I carefully (and laboriously) pre-torch it, it will always expand about 10%. Coil it on my Kuro 3.0mm rod, and it will be 3.25 - 3.3mm in the end. I can't do anything to fix that, unless I'm able to attach it to the atomizer in a tensioned state. But that's hard and fiddly for me to do.

I'm quite used to this springiness of Titanium and I know that those builds fit in my atomizers. But I would rather it be that I coil around a 3mm rod and get 3mm, especially as this would fit fractionally better in my atomizers (in many cases on my decks, 3.3 just fits, 3.0 fits without worries)


Anyway, I certainly am not interested in wire pissing contents :) People should vape with whatever they are happy with. I won't give any more car analogies.

I do believe, based on my own experience and corroborating experience of others, that the NiFes - and SS as well to some extent, now we know it's not nearly as inaccurate as previously thought - have specific, quantifiable benefits over Titanium. Maybe Titanium has benefits back, it's just so far they've not been quantifiable, and you're the first person I've heard to state that Titanium might have benefits to resulting vapour.

NiFe will be out in a big way soon, and more and more people are trying SS. So in the next weeks we'll have a lot more data, people going from Titanium to NiFe or SS, and giving their opinions. We'll look at all that and maybe a picture will form.
 
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Croak

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I think NiFe and SS missed the mainstream window of opportunity for 2015. For it to catch on outside the realm of us wire geeks, it needs to be supported by a simple pre-set TCR, and it needs to be widely supported by the major Chinese mod makers and clearo makers. Q2 2016 is my prediction for widespread availability of mods with simple to use SS support, and NiFe will trail behind that.

Joyetech and the eVic VT opened the floodgates for titanium with their titanium pre-set and supplied coil head, other mod makers had to follow suit. Nothing in the pipeline is looking to do the same for stainless or NiFe soon.

The DNA200 will help speed things up, if sales are strong there will be a demand for SS or NiFe and supply channel will rise to meet that demand. Same to a lesser extent with the X Cube II, and SXK TC variants. The Dicodes products are just too costly, too difficult to source outside the EU, too complex to operate, and too tubular to really have an impact.
 

TheBloke

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And PS. Yes I often get unspooling with CW spools because they are the only ones with no attachment method on the spool. I had an entire spool of 26G unwrap once. That wasn't very fun.

I use a knife to cut notches in the spool, but it's not as good as having pre-cut notches or holes in the spool.
 

TheBloke

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I think NiFe and SS missed the mainstream window of opportunity for 2015. For it to catch on outside the realm of us wire geeks, it needs to be supported by a simple pre-set TCR, and it needs to be widely supported by the major Chinese mod makers and clearo makers. Q2 2016 is my prediction for widespread availability of mods with simple to use SS support, and NiFe will trail behind that.

Joyetech and the eVic VT opened the floodgates for titanium with their titanium pre-set and supplied coil head, other mod makers had to follow suit. Nothing in the pipeline is looking to do the same for stainless or NiFe soon.

The DNA200 will help speed things up, if sales are strong there will be a demand for SS or NiFe and supply channel will rise to meet that demand. Same to a lesser extent with the X Cube II, and SXK TC variants. The Dicodes products are just too costly, too difficult to source outside the EU, too complex to operate, and too tubular to really have an impact.

Yeah that sounds likely. SS will certainly be quite a way ahead of NiFe. I used to think SS was a wire with a major disadvantage of inaccuracy, but based on our recent number crunching it doesn't seem like that at all. It could well be that SS is just as good in practice as NiFe, at least on the good mods. Certainly it seems like it should be better than Ni200 was. I'm going to test it hard as soon as I've done some other testing I've promised.

Though don't forget we still have our mystery NiFe52 supplier launching at Vape Mania on September 15th. Apparently selling to multiple vendors. No idea who, no idea prices, and my fear is it's going to be "made for vaper" prices. But if it's not stupid prices this could kick start awareness and sales, in a way that, as you say, Dicodes never could outside of Germany.

And as soon as the Chinese see people buying it, they will add a mode for it. Actually, Wotofo already did - albeit accidentally labelling it 'Platinum' :D
 
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vapealone

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I think I wasn't clear enough.
I got better vape out of a Ti than any material flavor wise.
Smoothness, thickness etc looks Claptonish to me that I consider good for a standard coil.
On the other hand, building can be a pain in the back. I am actually quite surprised how well my last build went:)
And I got problems with Ti on some tanks and mods. Some burning here some changing resistance there.
Meanwhile, NiFe is bulletproof and easy. Just tastes a bit funny after Ti. That's what I was trying to say. Not a big difference to me, generally hardly noticeable but I just swapped the coils between two puffs and it was definitely there.

BTW: I don't know why, but I could hardly pull the coil off the coiler because it was so tight on and could hardly put the 3mm drillbits in and out when installed the coils above. Like I said, I am still surprised. But in a good way:)
 

TheBloke

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I think I wasn't clear enough.
I got better vape out of a Ti than any material flavor wise.
Smoothness, thickness etc looks Claptonish to me that I consider good for a standard coil.
On the other hand, building can be a pain in the back. I am actually quite surprised how well my last build went:)
And I got problems with Ti on some tanks and mods. Some burning here some changing resistance there.
Meanwhile, NiFe is bulletproof and easy. Just tastes a bit funny after Ti. That's what I was trying to say. Not a big difference to me, generally hardly noticeable but I just swapped the coils between two puffs and it was definitely there.

BTW: I don't know why, but I could hardly pull the coil off the coiler because it was so tight on and could hardly put the 3mm drillbits in and out when installed the coils above. Like I said, I am still surprised. But in a good way:)

You were clear, that's what I understood!

I was asking if you can elaborate on how the Ti is better? But I suppose you just did, it had better flavour and thickness of vapour. And that was comparing like-for-like? 26G Titanim to 26G NiFe, or whatever your preferred wire size is? Or same twisted build, whatever?

I must admit I don't understand how different wires can lead to better flavours - unless it's something to do with juice's adherence to their surface or something? @druckle was talking about wettability the other day. I suppose there could be any number of subtle interactions we don't understand; or at least I don't :)

When I get my NiFe in 26G I 'll do three identical builds on three identical atomizers - Titanium, SS304 and NiFe - and vape them with the same juice and see if I can tell any difference.

Anyway, OK good so we have one subjective data point - for you, Titanium has better flavour and thickness of vapour. We'll see if anyone else notices this too when more people go from Titanium to NiFe or SS or whatever.
 
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