Amusingly enough, that's my pic. Just for perspective, that's an original (tiny) Vaporshark dna on the right, not the rDNA.
Yeah, found the pic, posted and then went to the site and saw it was you so I edited the post to give you credit
Amusingly enough, that's my pic. Just for perspective, that's an original (tiny) Vaporshark dna on the right, not the rDNA.
I think I've decided to wait (ouch!) until someplace that was out of them gets them back in stock. That way I can be (more or less) assured it's new stock of revised boards. (Plus I'll ask them before placing the order.) I am leaning toward getting it from Protovapor, if they get new stock about the same time as others -- based on the feedback on this board, they seem to be doing some real quality control.
Actually, I am sorely tempted to get an XPV 40 too. Problem is, I'm afraid I'd find it pretty clunky to hold (5'6", medium small hands). Once a setup gets above a certain size, I seem to much prefer both the look and feel of a box mod style, plus I think they fit in my pocket better -- ergo why I was initially leaning toward the rDNA. (Feedback on others' experience with the kinesthetics of the XPV welcomed. Please include glove size.)
Maybe I should print out an XPV-sized box, tape some weight in it, and see how it feels and fits in my pocket.
Oh wait, I don't have a 3d printer yet. Rats. Too many projects, too little time.![]()
@KGie
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I would argue that real world QC, a long history with Evolv, and transparency. . .
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It sticks out some. I tried taking it out farther and putting it in deeper and no luck.How far does up your positive pin stick out the 510? I had the same problem with my Eleaf and i unscrewed the 510 postive pin out to make a harder connection with the mod... Only other thing I can think of is the Russian has an internal resistance natively as 0.15 due to the threading or what not
It sticks out some. I tried taking it out farther and putting it in deeper and no luck.
I don't have a multimeter right now. I think something happened to it. Now after building a kanthal coil it's resistance is bouncing from 2.3-1.3 while firing on the DNA40. Starting high and rapidly dropping to 1.3. My DNA30 won't even fire it. Everything looks good on it too.Do u have a multimeter? Measure the attys internal resistance without wire
A link to the review would be helpful. I've never heard of "Regulated Reviews". If he/she says their 510 pin is spring loaded he is either mistaken or Hana made a major improvement and decided to keep it a secret. Highly doubtful.I just watched a review on YT for the Hana Modz DNA 40 (by Regulated Reviews) and he said his has the 510 spring connector, is that true?
He didn't demonstrate it but I thought it still came with the standard 510 that didn't self adjust or did they update this recently?
Thanks
A link to the review would be helpful. I've never heard of "Regulated Reviews". If he/she says their 510 pin is spring loaded he is either mistaken or Hana made a major improvement and decided to keep it a secret. Highly doubtful.
Welp. Just picked up my rdna40 and it works a mile better than my flask. Now I'm convinced my flask's chip is messed up.
With the rDNA, it asks if I have a new coil ever single time I put on a new atty!!! Yay.
Recognizes all my kanthal builds too!!!
Burping out loud using Tapatalk
good to hear you got one that works
Welp. Just picked up my rdna40 and it works a mile better than my flask. Now I'm convinced my flask's chip is messed up.
With the rDNA, it asks if I have a new coil ever single time I put on a new atty!!! Yay.
Recognizes all my kanthal builds too!!!
Burping out loud using Tapatalk
Not that it couldn't cause the issues in some, but many of the issues I've seen, like not detecting coils right, resetting base resistance all the time, etc... are all issues I experienced with my first board that also experienced the screen glitch. I'm an ee and build electronics all the time. Definitely wasn't a grounding issue in my case unless it was integral to the board itself. I suspect even if it doesn't manifest in an extreme way, I think it's all the same defect. My second board has been flawless since I got it.Maybe.
I've been following this thread since the beginning, and I think I'm starting to notice a couple of patterns.
First off, it seems like some people are leading a charmed life, at least when it comes to building nickel coils and very successfully and happily using them on their DNA 40 devices in Temperature Protection mode.
And it seems like another group are doomed to a life of frustration and disappointment in Temperature Protection Purgatory.
From this distance, it looks possible that – to quote the first word of this post – maybe the folks leading charmed lives are using XPV's, and only the ones (or maybe more accurately some of the ones) using Flasks and more recently rDNA's are running into issues. Could this be, and if so, how?
Here's one possible mechanism. Not saying this is what's going on, just offering it up as a possibility; it should be easy enough to check.
In working with digital circuits, particularly newly designed ones, occasionally I would come up against one that exhibited an odd variety of apparently unrelated glitches. The circuit looked great and worked swimmingly on paper, but in real life misbehaved in an odd variety of ways that made it totally exasperating to debug. The glitches were often intermittent, which made debugging them that much more difficult and frustrating.
At first I would try to debug each glitch independently. This usually got me absolutely nowhere, other than to the end of the day (and too often the night). I finally decided to check everything, including the basics that didn't seem like they could possibly be causing the problems, such as the integrity of the power supply and its connections, which included checking the grounding.
The first couple of times that I found a bad ground and fixed it, much to my surprise I discovered that hadn't fixed just one of the glitches, it had fixed them all! I quickly learned when a circuit was exhibiting an odd assortment of apparently unrelated and quite baffling glitches not to even waste my time checking it any out any further until I’d thoroughly vetted the grounding.
You most likely know where I'm headed with this by now: I'm wondering if there's a problem with the grounding on the Flask (and possibly rDNA's), but not the XPV's (nor likely the beta units, but as I wasn't part of the beta program I know pretty much nothing about the design of the mods that were used for it).
There are both obvious and unexpected ways grounding can go awry, some of which are pretty subtle. In the obvious camp are such things as bad solder joints, missing ground wires or PCB traces, etc. I expect these are unlikely in the current DNA 40 products that are already on the market.
I would think much more likely to be causing a problem in this… ah, case – would be if the circuit is wired using the case as a ground connection, rather than having all ground points hard-wired together. This might be a good way to set up what are known as ground loops, a situation in which all points in the circuit that are supposed to be at the same potential – ground, exactly zero (I assume) volts in this case – aren't. Some ground points will end up at slightly different voltages than others, or have no connection at all (floating), creating what is known as a ground loop (and the title of this thread).
Bad grounds and ground loops can – almost certainly will – wreck havoc on logic circuits especially, cause hum in audio equipment and a diverse host of other ailments, often apparently unrelated, and often intermittent.
Sound familiar? Having a high integrity ground system is almost surely even more critical when you start measuring resistance down to two decimal places, and it should be easy enough to determine if I'm on the right track here: we just need to answer the question of how each mod physically handles ground connections, and the integrity of the entire grounding system. I don't have any of the mods under discussion here (yet) and haven't even seen them in person, let alone looked into their innards, but if it turns out that the XPV is hard-wired, whereas the Flask uses the case as common ground, we may know where to look for the problem. And/or there might be other reasons for inadequate grounding. (Not quite enough feedback on the rDNA's yet, but early indications are that it's in the XPV camp – i.e., performing reliably.)
So, anyone with any of these mods able to answer the questions about how the grounding is done, and its quality? Am I onto something here, or is this another blind alley?