Titanium wire, vaping and safety

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awsum140

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That's what I like about this thread, and many others here...you learn something new every day. The skin effect for RF I have experience with was copper and/or silver conductors. Nickel is a conductor but with significantly different properties. Titanium seems to behave more like copper or silver in that regard. Glad I switched to titanium, no skin effects to worry about as well as no metallic taste for me.
 

vapealone

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That being said, if the skin depth was a substantial factor for tuning the temperature control algorithm for nickel, that same algorithm may not be optimal for titanium.

That sentence I understand:)

Luckily, dna apparently doesnt discriminate between materials:)

BTW, James @ eVolv advised that DNA200 uses a specific number of points, and segments in-between, to approximate TFR curve. (it wasn't said if it is linear approximation along the segment or not but I take it is)
E.g. for Ni they use 7 temp/TFR data pairs which means 6 segments. 3 of these are are more likely to used for from -100 to 70F, from 70 to 200F and from 600F to 800F or something similar.
Which means 3 segments for Ni in the effective range. Which is more than good enough for vaping purpose but definitely not the leauge where skin depht/density/specific heat etc play

Besides, and more importantly there is only a limited storage place for all the input data of all the profiles combined.
It means that you either use all the profiles with limited input data for each or only a very few with more detailed data.

Anyway, I think I will save up storage place on Ti and use two segments or even 1 if possible:
E.g: Steam-engine uses a constant TCR of ~0.003486442 and 7 points/ 6 segments (as eVolv for NI) to define a line which is a waste of the limited storage space.
Therefore,instead of this:
-100,0.6707249584947427
0,0.8644161593801882
70,1
200,1.2517985611510791
400,1.6391809629219702
600,2.026563364692861
800,2.413945766463752

that should give a same result (if I read James well)
-100,0.6707249584947427
800,2.413945766463752

or that if I want to play it safe:
-100,0.6707249584947427
70,1
800,2.413945766463752

Too bad that this limitation renders my beloved tables virtually useless. Tho it doesn't prevent me keep playing with them:)
 

Landman

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That sentence I understand:)

Luckily, DNA apparently doesnt discriminate between materials:)

BTW, James @ eVolv advised that DNA200 uses a specific number of points, and segments in-between, to approximate TFR curve. (it wasn't said if it is linear approximation along the segment or not but I take it is)
E.g. for Ni they use 7 temp/TFR data pairs which means 6 segments. 3 of these are are more likely to used for from -100 to 70F, from 70 to 200F and from 600F to 800F or something similar.
Which means 3 segments for Ni in the effective range. Which is more than good enough for vaping purpose but definitely not the leauge where skin depht/density/specific heat etc play

Besides, and more importantly there is only a limited storage place for all the input data of all the profiles combined.
It means that you either use all the profiles with limited input data for each or only a very few with more detailed data.

Anyway, I think I will save up storage place on Ti and use two segments or even 1 if possible:
E.g: Steam-engine uses a constant TCR of ~0.003486442 and 7 points/ 6 segments (as eVolv for NI) to define a line which is a waste of the limited storage space.
Therefore,instead of this:
-100,0.6707249584947427
0,0.8644161593801882
70,1
200,1.2517985611510791
400,1.6391809629219702
600,2.026563364692861
800,2.413945766463752

that should give a same result (if I read James well)
-100,0.6707249584947427
800,2.413945766463752

or that if I want to play it safe:
-100,0.6707249584947427
70,1
800,2.413945766463752

Too bad that this limitation renders my beloved tables virtually useless. Tho it doesn't prevent me keep playing with them:)

If you input the Ti TCR value of 0.0035 and not use a csv file, it only uses 2 segments/3 points like your 'play it safe' option.

Edit: I couldn't tell any difference between the full SteamEngine string and the 2 segment.
 
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vapealone

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If you input the Ti TCR value of 0.0035 and not use a csv file, it only uses 2 segments/3 points like your 'play it safe' option.

Edit: I couldn't tell any difference between the full SteamEngine string and the 2 segment.
Good to know. Thx

In terms of differences: there is none as Steam-engine uses constant TCR means constant dR/dTemp means they are just different points of the same line so u can omit most of them

Edit: and your 2 segments are actually 1 with a point sitting on it@ 70F

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tchavei

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Hi guys.

I just tested the stealthvape Ti (I have 26 and 24g)

Regarding cleaness, the wire is squeaky clean. I rubbed and rubbed the wire with isopropyl alcohol and not a single streak or discoloration of the paper napkin I used. They really licked it clean before spooling.

Regarding softness / hardness... It's softer than the zivipf wire and barely springy. After a 9 turn coil wrap, the leg moves back max 45 degrees while the zivipf would try to unspool itself at least one full turn if not more.

I would risk saying it has the consistency of hardened nickel or normal kanthal.

I spoke to Duane and he considers that the stealthvape wire is harder than the one from Rio Grande. Probably in pair with unkamen, half hard?

I built a dual coil on my mutation x - 9 wraps on 2.5mm mandrel and got 0.23 ohm on my evic VT.

Didn't have time to wick it though.

The wire is shiny and smooth btw.

Regards
Tony

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Madnapali

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I'm ...... that YiHi hasn't put something out about the Ti situation. Not a peep. Going to try my first coil today. Will use Vape Mesh. Seems just like Kanthal to me.
I'm still putting off building a Ti coil until the update is official.

I've come to the conclusion they won't release it until a few minutes after I break down and install the public beta.
 

tchavei

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Why are you guys waiting for official support to jump on the bandwagon? Most Ti supporting mods are far off anyway so the temperature numbers will be wrong too.

Once I tried ti, I just couldn't go back.

Regards
Tony

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jks89

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Why are you guys waiting for official support to jump on the bandwagon? Most Ti supporting mods are far off anyway so the temperature numbers will be wrong too.

Once I tried ti, I just couldn't go back.

Regards
Tony

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This thread is my official support! I'm liking this bandwagon. I'm (kind of) looking forward to when I get low on Spider Silk wire so I can try some other gauge(s).
 

2legsshrt

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Well I did my first coil. 3mm probably a little more 5 wraps 26awg Vape Mesh Ti. Came out .29. Using it at 15J 390. It is vaping well at the moment, temp is staying at between 390 and 400. Not sure if I did something wrong but it is doing pretty well. The taste is a little different. Using it in Ti mode. Has a little bit of a metalic taste. I pulsed the coil at 5w and let the little puff of smoke stop.
 
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SotosB

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I've been trying various setups the last few days with Ti and ss. I've tried twisted, clapton and fused clapton coils. For ss only twisted works on tc. Any other setup is no good for temperature control. I had decent performance with clapton coil using Ti but my favorite (and the one I ended using) is twisted coil using three 28g Ti wire, five wraps with 2.5 id. Came out about 0.1 ohm. Really nice performance. I think I'm gonna stick on this one. At least until capital control ends and be able to buy some more gauges off Ti wire to try an alien coil. It looks promising on Ti I think...
 
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tchavei

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Well I did my first coil. 3mm probably a little more 5 wraps 26awg Vape Mesh Ti. Came out .29. Using it at 15J 390. It is vaping well at the moment, temp is staying at between 390 and 400. Not sure if I did something wrong but it is doing pretty well. The taste is a little different. Using it in Ti mode. Has a little bit of a metalic taste. I pulsed the coil at 5w and let the little puff of smoke stop.
Metalic taste? Really? That's odd. Ti is known for not leaching anything.

Did you scrub and clean the wire prior to build the coil? A mild dry burn might remove biological material but not most inorganic stuff like lubs and other contaminants.

Regards
Tony

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Madnapali

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Why are you guys waiting for official support to jump on the bandwagon? Most Ti supporting mods are far off anyway so the temperature numbers will be wrong too.

Once I tried ti, I just couldn't go back.

Regards
Tony

Sent from my keyboard through my phone or something like that.
I don't want to learn how to do it two different ways within a couple days. Also, I'm still waiting for all the nickel coils I have built to need replaced haha. I've got a tank that gunked all to hell and back and could use a new coil, but I'm also trying to drain the bottle of juice I've been running through it.
 

TheotherSteveS

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Why are you guys waiting for official support to jump on the bandwagon? Most Ti supporting mods are far off anyway so the temperature numbers will be wrong too.

Once I tried ti, I just couldn't go back.

Regards
Tony

Sent from my keyboard through my phone or something like that.
I so agree with you mate. I am using all and sundry toppers armed with Ti on the SX at lower temp and it works just fine. I haven't even tried to update the damn thing. All of the supposed Ti friendly mods with the exception of the dicodes are not doing well for reasons that escape me really. Anyway, we know the joys of Ti. As they say you can lead a horse to water but making it drink is a different matter!! Lol!
 
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Madnapali

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I so agree with you mate. I am using all and sundry toppers armed with Ti on the SX at lower temp and it works just fine. I haven't even tried to update the damn thing. All of the supposed Ti friendly mods with the exception of the dicodes are not doing well for reasons that escape me really. Anyway, we know the joys of Ti. As they say you can lead a horse to water but making it drink is a different matter!! Lol!
I know people out there have DNA200s already but I haven't seen anyone chime in on changing the settings for Ti. Funny though that the 'nickel purity' function seems to unintentionally still be at the top, even though stuff has come out specifically for Ti.

This is another reason why I'm holding out for the Ares OS. If it sucks out of the box, I just write my own code. Which I'll do regardless of how it functions out of the box haha.
 

tchavei

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I know people out there have DNA200s already but I haven't seen anyone chime in on changing the settings for Ti. Funny though that the 'nickel purity' function seems to unintentionally still be at the top, even though stuff has come out specifically for Ti.

This is another reason why I'm holding out for the Ares OS. If it sucks out of the box, I just write my own code. Which I'll do regardless of how it functions out of the box haha.
I have a dna 200. Although I haven't fired it yet, I already programmed it and loaded a linear 0.0035 TCR curve.

Some dear friends have tried it in Ti mode and report back positively.

Regards
Tony

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