Official DNA 40 introduction

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DejayRezme

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    Look, I don't want to be argumentative, but

    Woahh someone did not take that post very graciously lol. I don't think the post meant to imply all of that? There is no denying that a lot of people in this thread got the screen glitch and had to get it replaced. I think his main point was that practical people should not let themselves get too sidetracked by all the speculation and theorizing, which I'm enjoying very much.

    In any case, lets not quarrel between ourselves, we have a common enemy: Cigarettes!
     

    rusirius

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    Woahh someone did not take that post very graciously lol. I don't think the post meant to imply all of that? There is no denying that a lot of people in this thread got the screen glitch and had to get it replaced. I think his main point was that practical people should not let themselves get too sidetracked by all the speculation and theorizing, which I'm enjoying very much.

    In any case, lets not quarrel between ourselves, we have a common enemy: Cigarettes!
    It's entirely possible I interpreted it wrong. And I absolutely agree that if you have a working device just enjoy it, I am myself. I just took there to be an underlying jab there implying that those who have problems should be dismissed and probably more due to us trying to do things with it it's not intended to do, which isn't the case at all. I just felt like it was a jab at those of us in t this thread and others trying to determine the nature of our issues by running various scenarios and tests. As if we are off our rocker and there's probably only 1 or 2 bad boards out there and we are only for what ever reason trying to make it seem like a much worse problem than it really is. Again if I misinterpreted it then I apologize.
     

    tchavei

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    It's entirely possible I interpreted it wrong. And I absolutely agree that if you have a working device just enjoy it, I am myself. I just took there to be an underlying jab there implying that those who have problems should be dismissed and probably more due to us trying to do things with it it's not intended to do, which isn't the case at all. I just felt like it was a jab at those of us in t this thread and others trying to determine the nature of our issues by running various scenarios and tests. As if we are off our rocker and there's probably only 1 or 2 bad boards out there and we are only for what ever reason trying to make it seem like a much worse problem than it really is. Again if I misinterpreted it then I apologize.

    I read it the same way.
     

    dougward1960

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    Look, I don't want to be argumentative, but unless I'm reading your post wrong, and that's entirely possible, I'm afraid I have to disagree with the overall sentiment.

    I get it. You got a perfectly working good dna40, or several of them. Congrats, please accept my official pat on the back.

    But not everyone did, do we have exact numbers? Of course not. But let's be honest about it. Evolv had a manufacturing defect. And that defect is causing a very real and very serious problem for those who are unfortunate enough to receive boards with it. How many people? Who knows, but just the number of people in this post with not just one but in some cases multiple bad dna40s combined with all the info you can find on reddit and other vape boards seems to indicate that it's a pretty high figure. I was one of those numbers.

    You have to understand that it may seem entirely different for you perched up there on your post with your working dna40s, but for someone like me, who ordered it, took the time to install it, then had nothing but trouble with it, it's a little hard to be happy about that. Not only was my time wasted, but I now have paid $10 extra for something (because evolv doesn't pay for you to rma something back to them) and have now waited over 2 weeks since sending it back to them with no replacement nor word from them. And in the mean time they've been completely silent about the issue. To get a functioning dna40 and not have to wait 2+ weeks to get it, I had to purchase a second board. My emails to evolv asking for an update on the status of my rma have went unanswered. My original email to them asking about an advanced replacement option went unanswered. As bad as cloupor is, when they had mods burning up wiring because they had people trying to run builds drawing 15 or 20A on a device clearly specd for 10A and they didn't include software limiting, they were paypal'ing complete refunds to people immediately upon receipt on a simple email with their receipt attached. They screwed up and they did the best they could to fix it. That's a Chinese company with a marginal reputation at best. This is evolv. Someone I would expect to have a slightly higher caliber of dealing with something.

    I don't think it's too much to ask that a product I buy works as described. And when I'm constantly getting dry burnt hits, more than I ever did with any other device out of one that supposedly eliminates that, I don't think it's out of line to expect me to be a little upset about it.

    The intent of these posts isn't to create fear mongering and get people not to purchase the product. My second board works, perfectly, and I'm thankful for that, I could have been someone like thekiwi who got 4 out of 5 bad. I would have given up long before that, and so would the average person.

    And if someone is struggling with getting harsh dry hits our other anomalies, how can you fault them for trying to isolate what is causing the problem and see if others with good or bad boards can reproduce it? Especially when the behavior they are describing exactly described the symptoms produced by a bad board sans the screen glitch?

    I'm not sitting here calling you a fanboy, but you seem to automatically prescribe user error to any issues anyone has despite the fact that on several occasions the screen glitch has showed itself as well. Do you know how frustrating that must be for someone who is being meticulous about the way they are building to ensure everything is perfect, getting a behavior that clearly is not normal, then being told that it's their fault? Can user error be the cause in some cases? Sure, but let's try to help them determine that fact, ask questions and try to determine the real cause rather than just sitting back with multiple working dna40s pointing the finger and telling them it's all their fault because obviously if yours works there isn't a problem with any of them.

    It reminds me of the old ring of death issue with the xbox. People with working units were so quick to jump on the Microsoft bandwagon and defend them to the death denying that there could be so many bad units when theirs worked fine.

    You're right, nobody can tell us how many good versus bad units have been released, but that works both ways. For all we know, it's not is with the bad luck, but you with the good luck. It's no more right for you to speculate that there are very few bad units out there than it would be for us to speculate that there are very working units out there.

    Thank You Rusirius i couldnt have said it better. as i feel i have a bad board without the screen glitch. but im sure they will not go outside to test my board if i send it back cause inside it works flawlessly. :unsure:
     

    KTMRider

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    9086677502_532451a30b_z.jpg
     

    350ZMO

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    I must have killed puppies in my past life because out of 5 dna 40 chips/mods I have bought only the second xpv (I got as a replacement for a faulty one) is working correctly


    Sent from my iPhone using Tapatalk

    I'm glad you finally have one that works :toast:. Glad you hung in there and kept returning them to get it right.

    I don't believe its your bad luck. The odds have got to be astronomical given others have multiple units with no issues. There has to be a reason. It makes me wonder what is really going on? Something in manufacture, shipping environment, cold, humidity, interference or something...?

    The only problem I have had with my 3 was when juice got on the inside of one and the display started messing up which was easily corrected by swabbing with vodka. Building a fourth right now on a V3 board from protovapor so we'll see how that does. The conformal coating on the V3 looks a lot more substantial than the first 2 boards I got the day after release.
     

    Heespharm

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    I'm glad you finally have one that works :toast:. Glad you hung in there and kept returning them to get it right.

    I don't believe its your bad luck. The odds have got to be astronomical given others have multiple units with no issues. There has to be a reason. It makes me wonder what is really going on? Something in manufacture, shipping environment, cold, humidity, interference or something...?

    The only problem I have had with my 3 was when juice got on the inside of one and the display started messing up which was easily corrected by swabbing with vodka. Building a fourth right now on a V3 board from protovapor so we'll see how that does. The conformal coating on the V3 looks a lot more substantial than the first 2 boards I got the day after release.

    Thanks man! My second rdna comes in from vaporshark today... #fingerscrossed


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    350ZMO

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    (Forgive my cross post)

    That’s good thinking, no reason it wouldn’t work. If you think of a 2 ohm Kanthal coil and a 0.2 ohm Ni coil in parallel, the effective resistance would be 0.181 ohms, within 10% of the NI by itself. More importantly, though, if your NI resistance increases by 0.1 ohm for the rise in temperature to your setpoint, the effective resistance for a parallel with 2 ohms would be 0.283 (essentially the same 0.1 ohm, so TP will work nearly spot on).

    Thing is, though, the power seen by the two materials will be different, most heating will, of course, be done by the NI coils by the inverse ratio of the resistance. In my 0.2 vs 2 ohm example, the NI wiring will drop 10 times the watts as the Kanthal, decreasing as the NI resistance increases. That just means it moved the sweet spot in setting the W and temperature, and the improvement in mechanical stability for coiling, mounting, and wicking is well worth that.

    I’m thinking a 32 g or smaller Kanthal wire would improve the mechanics of these coils immensely. Hats off to Alexander for thinking outside the RBA!

    (no parallel resistance equations were harmed in the making of this post)

    Modified a spreadsheet from early in this thread, There will be a lot more wire in a twist but may be useful, 3mm coils 28gauge Ni200, 30gauge Kanthal,10 wraps, 10W, 68F and 410F :
    View attachment 390892
    View attachment 390894
     
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    350ZMO

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    Is there a way to recognize which version the boards are?

    I don't know, I'll try to take some close up pics of the V3 and see. The only way I know is that protovapor posted on their website which version they were now sending. And I don't know the version of the 2 originals I got.
     

    Bassnorma

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    IT WORKS IT WORKS HOLY CRAP IT WORKS!!!!! 28ga Ni200 with 30ga kanthal

    b1a01f119732114b025fe211b486d457.jpg


    3fbd8f07b0e0f0e5eb1077fcaeb4febe.jpg


    3940e875ff9662724c6f4a91d597a736.jpg


    70be02716b58146fb2e1be5038bf0def.jpg


    HA TO HELL WITH TOU FLIMSY NI200 BUILDS GAME OVER


    Burping out loud using Tapatalk

    Dammit kiwi....now you have teased me into twisting wire....I was hoping to avoid that but....newp.

    (sent from an alien device which translates English into Klingon without my approval)
     

    VBdev

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    my resistance keeps changing. Did anyone email evolve and ask them when they do base resistance reads? Rebuilt this morning and it started at .19 and hung there for awhile. After it sat a bit it came back as .16 and the vape was clearly weaker. I was able to up the temp to compensate and get back to where I liked it. Let it sit to cool and tested with external meter read .185. Forced new atty a couple times when still cool and it came up with .17. Vaped that for a bit, let it sit, and now it's at .15. with that base resistance I've got temp up to 490 to compensate and I'd been keeping it at 430 and lower before...weird, I don't think the algorithm for setting base resistance is doing me any favors right now.

    Just broke it down and tried to space the coils a little more. reading .19 on XPV now and .208 on the external. Maybe its time to go back to contact coils???
     

    rusirius

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    I'm glad you finally have one that works :toast:. Glad you hung in there and kept returning them to get it right.

    I don't believe its your bad luck. The odds have got to be astronomical given others have multiple units with no issues. There has to be a reason. It makes me wonder what is really going on? Something in manufacture, shipping environment, cold, humidity, interference or something...?

    The only problem I have had with my 3 was when juice got on the inside of one and the display started messing up which was easily corrected by swabbing with vodka. Building a fourth right now on a V3 board from protovapor so we'll see how that does. The conformal coating on the V3 looks a lot more substantial than the first 2 boards I got the day after release.
    I noticed that as well. My first board which had problems seemed to have a much lighter conformal coating, and the connection for the ribbon cable was done in a slightly different fashion than my second good board.
     

    350ZMO

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