Titanium wire, vaping and safety

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KenD

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I was wondering about getting the 28 as well but there is at leasy one review that says it is springy. A bit odd. Maybe there are mixed batches?!
Possible, I guess. Still, I don't trust ft reviews much. The discussions can be informative, once one gets past all the bickering and bs.

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TheotherSteveS

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Possible, I guess. Still, I don't trust ft reviews much. The discussions can be informative, once one gets past all the bickering and bs.

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agreed. It was very noobie-like also. The others seem to suggest its the same as the 26..I just added some to my order anyway! Might get it before xmas...
 
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jks89

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I was wondering about getting the 28 as well but there is at leasy one review that says it is springy. A bit odd. Maybe there are mixed batches?!

It probably also has to do with how subjective "springy" is as a qualifier. There might be a wire I find completely workable that you would think was too springy to deal with. I guess we'd have to figure out some way to measure the amount of force required to prevent X amount of "bend back" or whatever.
 

TheotherSteveS

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It probably also has to do with how subjective "springy" is as a qualifier. There might be a wire I find completely workable that you would think was too springy to deal with. I guess we'd have to figure out some way to measure the amount of force required to prevent X amount of "bend back" or whatever.

I agree but in this case, the poster was saying it was unusably springy compared to wire he/she has already used or something like that...If it is springy at all, then it isnt thesame as the 26g is my main point..

@TheBloke measures springiness by measuring the % expansion of coil diameter after wrapping. Not a bad way to do it!!
 

2legsshrt

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Yeah, that's still only about 300F using titanium in Ni200 mode, give or take.
I get tons of vapor. Maybe the SXM is different. The vape is very similar to using NI200 at 390F to me I'd do a video but I get a lot of vapor and flavor. When I started this I was told to go about 100F less then with nickel. If I put it in Ti mode I have to go to 480 to get the same vape. I use a 50/50 juice.
 
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TheBloke

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I get tons of vapor. Maybe the SXM is different. The vape is very similar to using NI200 at 390F to me I'd do a video but I get a lot of vapor and flavor. When I started this I was told to go about 100F less then with nickel. If I put it in Ti mode I have to go to 480 to get the same vape. I use a 50/50 juice.

Yeah the SXM is different, certainly to the DNA 40 but possibly also to some other Ni200 mods.

Yeah, that's still only about 300F using titanium in Ni200 mode, give or take.

That's what it would be on a DNA 40 with the full Ni200 curve implemented. On a Yihi and most/all other mods, it's higher. I expect 260°F is around 380°F, but could be as high as 400°F.

I vape Titanium at 140°C (284°F) on the Yihi chips when in Ni200 mode. That's a subjectively nice vape with never a dry hit, and I've measured it as being 230-240°C (446-464°F) when under airflow (I haven't tested a 'wet' coil yet. And interestingly, without airflow on a dry coil it's way higher - as high as 260°C. Which I think is something unique to the Yihi, or at least different to the DNAs and many others - I think it presumes there there will always be cooling factors against the coil and overheats without them.)

On that basis, 260°F / 125°C might be as high as 400°F. That's still lower than I would vape, but in the ballpark. Besides which, factoring in SR it will be higher, and maybe he has quite a bit of SR, taking him to 420 or above.

I do have some other Ni200-only mods higher, like my Rayn-board (Waidea VF, Kangxin Mini VFs) which I have at 300-320°F. Haven't empirically tested those yet, just set it by vape feel.

In general, from my experience, Titanium offsets for Ni200 are as follows:
  • The DNA 40 needs the lowest offsets, as it properly implements Ni200's curve
  • Other Ni200-only mods always seem to need greater offsets
    • I've yet to find/hear of a mod that has emulated the DNA 40 in implementing the full curve, but I suppose there could be some out there. I don't know about the chip in the Snow Wolf/Sigelei mods for example.
  • Then the Yihi chips seem to be different again, needing the greatest offsets
    • For example 140°C / 284°F I set on my SXM and IPV4, compared to 300-320°F on my Rayn chips.
    • Though of those I've only verified the actual achieved temp on the SXM @ 140°F/285°F, the Rayn setting has been subjective.
 
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2legsshrt

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Xuykst0mywNEPTzPIEaS4O4Z3b15OAB1AvEXJ1zjDYo=w78-h140-p
-q4M-dsD0EP_jvR3Q_fTspfdh2h6tE1qR9FcoTI14PU=w78-h140-p
Hope you can see this OK 260F 12J .26ohm Ni mode SXM
 

AlaskaVaper

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Thanks to the OP and everyone contributing to the thread I took the plunge and started my foray into the TC build world with titanium. Here's my first attempt at a titanium build. 26awg/30awg 9 wrap 7/64" diameter dual clapton build. Resistance is 0.21 ohms. The coils were dry fired in an argon purged container at 45 watts. Note the lack of color and still having shine to the wire on the wicked coils after getting an even glow out of them due to the inert atmosphere they were fired in.
View attachment 490110 View attachment 490111 View attachment 490112

So my questions are; Is higher or lower resistance than 0.21 ohms working better for people on a sx mini m class? And also is a lager diameter wire preferred over a smaller one using tight coils? I'm already thinking about the next build trying a twisted or parallel core in the clapton but would like some opinions on this from some people with some time behind the wheel of a few titanium builds as I find working with the brittle/springy nature of titanium to be slightly frustrating.
Beautiful coils!!!
 

AlaskaVaper

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Has anyone noticed that the TCR for the Ti setting on the Evic VCT LiPo not mini, has been changed and now seems to work much better with Ti wire. I just received a black one last week that rounds out my color collection, and where I was vaping with Ti in Ni mode with the older two, this black one (new batch w/o the firmware ver. display) has been working ok using the Ti setting rather Ni setting.I need to do more vaping on this to be certain
 

BigEgo

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I vape Titanium at 140°C (284°F) on the Yihi chips when in Ni200 mode. That's a subjectively nice vape with never a dry hit, and I've measured it as being 230-240°C (446-464°F) when under airflow (I haven't tested a 'wet' coil yet. And interestingly, without airflow on a dry coil it's way higher - as high as 260°C. Which I think is something unique to the Yihi, or at least different to the DNAs and many others - I think it presumes there there will always be cooling factors against the coil and overheats without them.)

Yikes, that seems like a major flaw. The mod should only worry about the resistance of the coil and should never "assume" anything about airflow or any other variable. Once the coil's resistance hits the value that correlates to your set temp, it should attempt to keep it there and no higher. If what you say is true, that would be a major "thumbs down" for me.
 

TheBloke

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Yikes, that seems like a major flaw. The mod should only worry about the resistance of the coil and should never "assume" anything about airflow or any other variable. Once the coil's resistance hits the value that correlates to your set temp, it should attempt to keep it there and no higher. If what you say is true, that would be a major "thumbs down" for me.

Yeah. It's only a quick result from my past rounds of testing so it needs proper verification.

But it does fit a pattern I've seen with other mods that appear to operate differently in the dry coil situation. In this case it might also have been, rather than assuming airflow, that it had a too aggressive pre-heat or something like that - perhaps influenced by the fact it expected a certain resistance rise from Ni200 which it wasn't getting when actually vaping Titanium.

Looking back at my earlier test data, I definitely didn't get massive overshoots using Ni200 wire on the Yihi in dry coil tests. In fact it peaked bang on the money - though this test was hampered by the fact the Yihi had a four second cutout when it detects a "dry coil". So I had to re-press fire every 3 seconds which seemed to influence it a bit (bouncing up and down between 210 and 220°C on a 220°C target with 0.12Ω Ni200 coil.)

Anyway I'll be re-testing all this stuff properly and will post soon.
 
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