I have 5 DNA40's and a SX350j to choose from and a DNA30 backup and 8 18650 spares
DNA 200 Watt
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I bought an extension for my KF v4 last month and just tried it out yesterday. Just over 6ml capacity.
Damn, that's smart. I really want a new computer for audio recording. Perhaps I should get a dna200 to further motivate me
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That's just what they need, they just don't hold enough stock.I bought an extension for my KF v4 last month and just tried it out yesterday. Just over 6ml capacity.
I seen FT listed some of those a couple of days ago.
I bought the one with the steel tube because they didn't have a glass option. I ordered a few glass sections but they're all too thick. I'm using the PMMA tank that came with the Tobeco.
Also a big problem with most TGT II clone glass tanks, too thick, they strangle the wick ends.
I'm sorry if this has been asked before, but how do you flip the screen on the DNA 200? They replaced the FIRE + UP command with atty lock. I don't think its an auto-rotating display like the 350j, so maybe it is done in the software?
It's an option in the software but I don't know the button press to change it. Maybe someone that has a DNA200 can tell us.
Yes, because having a device tell you what it thinks you'd probably enjoy vaping at is SO forward-thinking. Useful even! You should pick up a Jellyfish, according to your standards it is the most groundbreaking device in years.
Aww if I'd known you guys were going to miss me so much I'd not have left you! Then again, they do say that absence leads to the fondling of hearts, or something like that.
That's fine if you only ever plan to use Ni200. But you shouldn't only ever plan to use Ni200 because other TC wires are better. So you will need the PC at least to set up your profiles for the other wires. That remains the DNA 200's big weakness - for all the magic the PC stuff allows, on-mod it's not hugely changed from the 40 unless you have previously used a PC to set up profiles. The extra watts may or may not be a benefit to many, but likely won't ever be a vast benefit (I haven't fully tested the pre-heat yet, so I'll reserve judgement until I have.)
But the ability to TC vape other wires is a huge benefit - and with the programmable TCR curve, the 200's implementation is the most sophisticated available. Ditto, the ability to configure the Static Resistance of the mod to get a dead accurate resistance reading for the atty. So the TC on the DNA 200 should be by far the most accurate of any mod thus created.
But sadly all that great stuff is restricted only to PC only for now, at least to configure it. At least they did allow the ability to change profile on the mod which is a good step. But not the Static Resistance stuff, which isn't in a profile so will require re-setting on PC each time.
So for now, in my view the DNA 200 only shines with (at least occasional) PC access. Without it, it's a 40 with some extra watts and therefore a bit disappointing. With it, it's the most sophisticated chip currently available - though not necessarily the most usable.
I will be raising feature requests for all the stuff I think the 200 needs to be out and out the best without qualification, as soon as I get a chance (next couple of days.) But I doubt we'll see the PC tether disappear any time soon. For one thing, they're pretty limited in how many more controls/options they can add to the mod with the current control system.
PS. I knew you'd not last more than a few days before you got one
Did you re-mortgage the wife?
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I tried various button press combinations but couldn't find it and had to do it in the software. If the option is there, it's got a good hiding spot.
I think it's via PC only now, the screen flipping. It's not listed in the manual any more as an on-mod adjustable.
The prime candidates are Stainless Steel (SS304, 316 and 317) and Resistherm NiFe30 - also known, generically as Alloy 120.
Stainless Steel is right at the lower range of accurate TC, at least it assuming the DNA 200 has no better than 1-in-1000 ohms reading (as other premium TC mods do, and as the software suggests it does.) It will be accurate to nearest 30°C versus nearest 5°C of Ni200. But that can still be totally fine - although it's not super accurate, it can be very repeatable; ie you find a temp setting that gives a good vape, good taste, and no dry hits, and then you can repeat that every time thereafter with similar builds. And to be honest, for 90% of TC vapers, their Ni200 builds are no more accurate than that anyway.
Resistherm NiFe30 / Alloy 120 is excellent for TC. Resistherm is a wire that Dicodes are trying to popularise, to go with their 2380 and Dani Extreme v2 mods - which also have adjustable TCR / variable TC, though not quite as sophisticated as the DNA 200. So it's readily available to purchase in vape-sized spools. The downside is that it's quite expensive - about $13 for 10 meters, and that it's only available in 29 gauge. I get around the second issue by twisting it into a 2-strand. It vapes beautifully like that.
Alloy 120 is the generic version of Resistherm. Available very cheaply, but only in bulk at the moment. Eg in the US you can get just under 1000 feet of it (not a typo) for $50 + shipping. It's slightly different than Resistherm in terms of coefficient (setting you need on the mod for TC), but vapes just as well I am told. I hope to get some soon. If Resistherm catches on in popularity, hopefully Alloy 120 will become available in more reasonable sized spools.
The huge advantage of Resistherm / Alloy 120 is that it's the only TC wire that can readily be used with or without TC. You can do a normal power/VW vape on Resistherm and it works just fine, the max temperature is about 700°C I think (1300°F). The big advantage of that is that you can then dry burn coils to clean them, something I am doing regularly with my twisted Resistherm coils. Plus you could also use your TC builds on any VW mod if you wanted!
That may also be possible with Stainless Steel, I need to test that. It does not apply to Ni200 or to Titanium, both of which will degrade or burn out completely if you overheat them. And they can become dangerous to inhale if taken about their max temps.
There may be other wires as well - Tungsten is a possibility, although its resistance seems really low, lower even than Ni200, which is a pain. So I've not tried it yet. Niobium has also been discussed. And no doubt there are other alloys we are yet to think of.
For a lot more info on TC vaping with wires other than Ni200, check my thread: TC beyond Ni200: Nickel Purity, Dicodes; Ti, SS, Resistherm NiFe30; Coefficient of Resistance
I haven't yet updated that thread with discussion of the new possibilities of the DNA 200, but will be doing fairly soon.
You set the screen orientation in the software (as currently configured). If it is important to have the ability to set it with device pushes then you might offer a suggestion in the Evolv Early Adopters forum as things are still fluid to a point. In my use I only need to set the orientation one time but others may desire multiple changes in use....
Hey Bloke, this Resistherm you speak of, does it change resistance as drastically as Ni200 when heated, or just reliably and predictably? I'm wondering because if it did change resistance like Ni200 does and you were to try using it on a mech or cheaper Chinese DC-DC mod, it would give off a very unusual vape. The DNA's and maybe the SX350's are the only boards I know of that track resistance in real time and adjust output voltage accordingly.
I'm pretty sure all temp protection mods track real time resistance. No other way I'm aware of to achive TP.
Good point; I should have added that although one can use it on a VW mod, the changing resistance would give a varying-strength vape.
It's not as bad as Ni200. Ni200's overall TCR is around 0.006 (it's a curve so it varies across the range, but 0.006 is a reasonable approximation.) Resistherm's is 0.0032. So a little over half the rate of increase. Though because Resistherm's starting resistance is usually much higher (which is another of its benefits, along with Titanium and Stainless Steel: higher starting resistance = less power required), the actual increase in terms of number of ohms can be the same or greater.
To give some approximate numbers:
- A 0.10Ω Ni200 coil heated from 20°C to 232°C (450°F) increases in resistance to 0.2272Ω (an increase of 0.1272Ω; 2.27 times base resistance.)
- A 0.30Ω Resistherm coil heated the same increases in resistance to 0.50352Ω (an increase of 0.20352Ω; 1.67 times base resistance.)
So yeah, I'm not necessarily recommending that a Resistherm coil is VW vaped long term. But I have done it for an hour or two, just to see what it was like, and it seemed to vape OK to me. But more testing would be needed before someone tried it long term; all I can confirm is that it appears safe to do so. it's the dry coil burning that I find particularly useful; I remove my wick and dry burn my Resi coils clean in a few seconds, in-situ, just like I would with Kanthal, and very unlike I could do with Ni200 or Titanium.
I should add though that I learnt recently that some mech users vape on Titanium (whose TCR is very similar to Resistherm - 0.0035 vs 32). Both because it's a nice coil material, and because they like the gentle rise in resistance which causes the power to taper off over the course of the vape. Sort of like a bare-bones type of TC
So there does seem to be precedent for using mid-TCR wires for VW/mech vapes.But of course they have to be very careful to keep their coil wet, else those Titanium coils would go up in smoke.
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They do in TC mode. But the assumption is, like windx was saying, that they don't in VW mode. That might be wrong though, they might have simplified the design so it always tracks resistance and live updates the volts, rather than having a separate static resistance mode for VW.
I might test that some time.
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