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blueridgedog

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Posts posted by blueridgedog

  1. Johan said:

    [QUOTE=blueridgedog]I like the SSV wire.  Yes it is an alloy, but with the right profile, it is a great vape, easy to work with and durable.  If I could find annealed Ti that I could bend and have it stay that way, I might switch, but having used pure Ti and having four Ti ignitions (the Ti burns) in my atomizers, I have been reluctant to go back to it.



    Could you describe the circumstances of these ignitions? That is a scenario that I would like to avoid replicating. Thanks[/QUOTE]

    Taking non-annealed ti and annealing it manually so it is not springy.  The end result may be uneven, and a hot spot may form when vaping...pop.
  2. I have seen recommendations for a minimum of .5 resistance for SS.  The lower the TCR, the higher base resistance that is required as you are dealing with a ratio.  Small Resistance*Small TCR = small variation, Large Resistance*Small TCR = better variation when fired.  If you multiply the two you get a baseline target:

    Wiremin ResTCRX
    Ni2000.050.0062000.000310
    Tungsten0.070.0045000.000315
    Ti010.10.0035000.000350
    NiFe300.10.0032000.000320
    SS4300.250.0013800.000345
    SS3040.50.0010500.000525
    SS3160.50.0009200.000460
    SS3170.50.0008800.000440
        


  3. Effie said:

    Hi, I seem to be having the same problem with charging my Opus last night it just didn't charge, Update ver 8/21 and performed a USB Recovery charging. As of now Pack is at 10.79v cell1 3.60v cell2 3.59v cell3 3.60v the recovery hasn't fixed the charging problem. Is it something I need to ship back to Opus or a work around that I can do.  your help is greatly appreciated.



    Some of my DNA200 mods fail to charge as well, but this is due to some USB cables not being inserted far enough.  I have gotten accustomed to inserting it firmly, looking for the "click" then looking at the screen to be certain it is charging.
  4. The warm atomizer issue is worth shinning a light on as it is the source of a lot of issues with TC vaping (not just the DNA200).  If the coil is not at room temperature and you attach it to a TC device, and use the device's logic or user interface (New up, old down) to tell it that you have attached a new coil, then it will be impossible to get TC control on that atomizer.  The TCR values at play are so very small that small variations in initial resistance (due to the coil being warm) or mod resistance (improperly entered mod resistance figure) will dramatically through off the TC calculation, typically in the "up" range, i.e. the board will give more wattage than needed.

    As we on the "early adopters" forum try and help those out there use this technology, we need to keep in mind what it is actually doing.  I get this a great deal with my wife...vaping, happy, pulls atomizer off to fill it, puts it on, tells the device it is a new coil because she is accustomed to blindly clicking "ok" when doing things on the computer, then gets bad vape.  I have solved this by having a rule for folks that I help with the DNA200 "thou shall never put a recently used atomizer on the device".  I keep six identical atomizers ready to go and she swaps to one of those if she wants a "refill".  Do I follow this?  

    Can this be made easier for the user?  I don't think so, but it could be that the DNA200 could have some logic that kicked in that observed sooner that the resting resistance was falling and that the base resistance being used is off.  It has that, and that is why the room temp calibration is essential, but for now the window of time required for it to naturally correct the user input error is long enough to cause user experience issues.

  5. As a final suggestion, SS is an alloy and each can have slight variations from the standard formulation.  Take ten samples of 316 from ten manufactures and you will get a variety of real world TCR values, depending on the exact composition of the wire.  Ti and Ni are easier, in that they are generally in pure form and therefore easy to dial in.

  6. Bobby said:

    Hmmm, it's my impression that most of the factory coils and popular wires tend to be 316L and the 'succes stories' I see use this wire or these coils.
    Do I understand you correctly that you are saying that true TC on wire that has a TCR in the 0.001 region is not possible, so the succes stories I read of SS316L are actually based on vaping this in VW mode with a temperature limit (like the first screenshot of Vapertron)?

    I will see if I can get some SS410 to test if this will do true TC. In the meantime it would be great to see a screenshot of the device monitor with this wire.



    I think there are success stories with 316/317 but there are also a lot of people vaping it in VW mode, and some probably do think they are in temp mode.  The TCR of these is so low that you have to have a significant coil and a near perfect atomizer along with a base resistance figure in the escribe setup to get it right.  The DNA200 is the only chip that will let actually see how it is scrambling to use it in TC mode.
  7. I have to pay very close attention to the registered resistance of a mod when using "lowish" TCR value wires.  If I know the build is .12 and it starts reading .13, .14 or worse, then I have to stop, move on to another atomizer and open that one and see what the issue is.  99% of the time, I simply tighten the grub screws and it falls back in line.  Other times I have to pull the deck and clean it.

  8. lewisss said:

    Not sure where you got that from as I have not seen anything like that from evolv officially (unless you are from evolv maybe) I am talking as a self coil building dripper only vaper. And I have found that particularly with Ti and Ss there is a while to 'break in coils' So ythe perfect vape with a ss 317 coil with the steam engine tcr is attained at about 330 f initially but throughout the day the temp required to get the same vape increases gradually until it settles down around 400-420. So yes temp control is a must for me. And with regards to your assumption maybe if that were the case they would have marketed the dna200 as 'dry burn protection ' rather than temperature control...... Just my thoughts



    This is from discussions with Evolv staff regarding the intended use of the temperature setting.  From their design perspective, they see the temperature set point as a max that you want to hit, then you control your vape with wattage.

    This has exposed two camps of folks, those that use temperature to get the vape they want and those that use temperature as a protection point and use wattage to get the vape they want.  

    I am in the second as I keep my DNA200 set at 200pre and 200fire and use temperature to set the vape quality.  Vaping Bad I "think" is in the first camp, in that he sets a not-to-exceed point for his temperature and then gets the desired vape with wattage.
  9. There are no editing of posts here.  Stainless, especially the 316 and 317 is challenging.  What most folks are finding is essential:
    Solid connection
    Solid atomizer
    Dialed in mod resistance

    This gives the mod the best chance of seeing the small TRC range of the coil.

    • Like 1
  10. There are many types of SS, some work for TC, some don't.  Even under ideal circumstances SS may come out of TC mode as the TCR value is a narrow window easily overridden by variable resistance in the mod or atomizer.  I don't think there is any change that can be made to make the board deal with it better, unless you want a TC mode lock.

    To make your post better, can you list the type of SS you are using and the curve you are using for it?

  11. I understand a modal window, and when it is used vs not.  I have 30 years in the same field though it is rare to code anymore as I have been the CEO for a decade.  I think that the use of a modal approach to block state changes that would otherwise have to be coded with locks and a call layer is acceptable for a hardware company that is writing software.  Ideally down the road they will outsource escribe to a software firm with an outcome along the lines of your (BobC) expectations.  I too would rather see a mobile version, but as this is very new ground I am happy with the pace.  I don't use or own windows gear so it is a challenge to make it work in my environment, but I don't object.

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