Vapor Flask V3 DNA40 Clone thread
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I'm still not sure what is going on with preheat either way, so put your fork down. Whatever is going on, I prefer the Kangxin to the DNA40 during the first second of firing. It seems to be smoother to me. That could be due to any number of things: no preheat, better preheat, a more accurate resistance measurement.....or my imagination.
Me too, I seem to prefer it but thinking it's just in my mind, didn't want to say it but now I guess I just did.
I think it said somewhere on the thread its the KX board but with a different 'Welcome' message. Or maybe that was the Flask clone board...
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Other than the "tiger" web page I found no mention of that version anywhere except VaporAlley
Just photoshopped to keep the heat off, it'll probably have the VF engraving on it.
The German reviewer Dirk Oberhaus tested a Zero Clone with an authentic Evolv DNA 40 too. When you compare the scope measurements, you`ll see these are almost identical. Dirk said, that Kangxin did a very good job.
I don`t have a VF, but I could imagine that you`ll get a preheat effect when you choose a higher wattage with a lower temperature.
Have a look at the VF measurements from Dirk:
at 20:43 ( 300F, 35W, 0,19Ohm, very wet cotton ) the voltage starts with 2,5V ( 33W) and after 0,4sec the voltage is about 3V ( 47W) and stays there for another second, before the voltage goes down to regulate the temperature. In the first 1,4 seconds the wattage is higher than 33W. I would call this a boost or preheat phase.
The voltage starts always at the value for the corresponding wattage and goes up till the set temperature was reached - on all measurements I have seen so far.
I would say, the KX40D has a preheat, but I would like to know whats up with the Sunlay version. Is it the same chip with a different start up screen, or a different board without or less preheat like @bky16 reported.
Busardos measurement are not so different. But he uses different scales and he didn`t tell what he measured. Wattage, temperature and resistance were not mentioned, so it`s for explanation of the DNA only. His dry coil measurement at 39min has a heat up phase of about 0,2sec and then it starts to regulate the temperature. Dirks measurement has a heat up phase of 0,2 sec too (20:50). The height of the peaks look different, but I don´t know what Busardo measured and I`m too dump to read his scope ( why does he have a negative voltage????)
I´ll add the review of the Kangxin VF in the next post.
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DrJim,
I read an article that claimed there are 20, 000,000 vapers in the USA so for a four month period they would only be able to cover 0.4% of those people over a four month period (typical life span of a vaping product IMO) and they sell world wide.
So while me like you am surprised by there production numbers when you think how many folks this little tiny world holds - not so surprising
That explains why there are so many vape related businesses opening up. And explains why the technology is evolving so fast. New products and versions every week. Is it safe to say, this is the "golden age" vaping?
I was hoping he was going to pull the cover so we could see the board and wiring. I have two DNA Zero clones I bought that were "broken". One only needed to have a single wire that attaches the switch board to the main board rerouted so it wasn't shorting on a pad to make it 100% (and despite what I had read, the board in it is not too bad at all). But the other one has so far resisted my attempts to fix it. It fires w/o pressing the fire button but isn't anything obvious. So it's a great candidate for a DNA board, possibly a 25 if the interest thread in the Co-Op forum pans out.
Well a 4 volt spike at firing (preheat)a nickel coil on a scope isn't hard to spot, I saw nothing close to that on any of the clone chips vids.
Build a 0.4 Ohm coil and set it to 40W and you`ll have a 4V spike without delay, which will increase to .....
Any idea what settings Busardo used?
Why is it not possible to find highly diagnostic measurements of DNA40s? Any idea?
Believe what ever you want, I´ll take the Kangxin.
Btw. I haven`t seen a 4V spike on any of the DNA40 reviews too
Any idea what settings Busardo used?
Why is it not possible to find highly diagnostic measurements of DNA40s? Any idea?
Believe what ever you want, I´ll take the Kangxin.
Btw. I haven`t seen a 4V spike on any of the DNA40 reviews too
I'm having trouble trying to image a 0.4Ω ni200 coil.
I want to see a 4 volt spike when firing a 0.1Ω ni200 coil
I suppose I should say battery voltage rather than 4 volts as it is going to be probably 3.3 - 3.7 volts at most.
I do have this idea in my head that it must have preheat going on or it wouldn't work as well as it does, and it works well.
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Well, after 3 nights of putting a flask in my online cart and then taking it back out, I finally clicked the submit button on the black 1660 model. 3f vape listed at no longer in stock so I went with focalecig. First order from them, so I hope it goes smoothly. Used the 5% off coupon and a $15.00 credit on PayPal that I won in a contest. Brought my out of pocket price to $51.00 and change. Now the wait begins.
HD
HD
What took so long? You won't be disappointed. It's a great device and you got a great deal.
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