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  1. rurwin

    some newbie questions about moving from Ego to Mods

    I used a Protank 2 with an eGo Twist for a while. It looks rather top-heavy but it works fine. The Protank 3 is dual coil, but then the Aspire BDC is as well. I would expect both of them to act about the same on an Twist. You don't need to upgrade your Aspire at the same time as getting a mod...
  2. rurwin

    some newbie questions about moving from Ego to Mods

    1. Battery size, yes. The battery will last twice or three times what an 1100mAh eGo will last. But the vapour production depends mostly on the atomiser. If you feed in too much power then it's going to burn the liquid. Commercially available coils such as the Protank II for example are designed...
  3. rurwin

    Official DNA 40 introduction

    I apologise to Evolv. I've just rechecked the video (it took a while; that thing is an hour long) and they are measuring resistance "hundreds of times per second." That's much more likely to provide good control. My gut feeling is that 100Hz probably would be good enough and 1kHz would be...
  4. rurwin

    Official DNA 40 introduction

    There is generally a heat reservoir involved. That would either push the temperature higher even though you'd cut power or, more likely in this case, drop temperature faster than you expect. So the first peak is at the right temperature but it settles far below it. You need the control process...
  5. rurwin

    Official DNA 40 introduction

    The reason you need to limit the power setting is that, unless Evolv have implemented a very good control algorithm that can learn to tune itself, the temperature will overshoot. Take a look at this graph: The blue line is the required temperature, rising to a set position when the fire button...
  6. rurwin

    Official DNA 40 introduction

    But the post in the middle is connected to negative. One coil will be shorted out and useless and you'll just have a single coil. You could get creative and use the negative post to hold a ceramic insulator of some sort. You can wire coils as a figure of eight around two formers. That gives you...
  7. rurwin

    Official DNA 40 introduction

    I imagine that if there are other metals as safe as nickel, and people start to use them, a DNA40 v2 could allow you to choose between them. On the other hand, if nickel is safe up to 600F and, other metals aren't, it would probably be negligent to support their use. No matter what the vapers...
  8. rurwin

    ohm meter help

    Put one of these in a dripper base. http://www.alliedelec.com/search/productdetail.aspx?SKU=70063581#tab=specs http://uk.rs-online.com/web/p/through-hole-fixed-resistors/0150616/ Obviously, you can't put it on a mod that fires it to measure resistance, but on a meter it will be fine. A varying...
  9. rurwin

    Official DNA 40 introduction

    I would expect some residue, but I wouldn't expect it to be hard, rather it will probably be gunky and at least somewhat water-soluble. A pipe-clearer/q-tip/toothbrush may be all that will be required.
  10. rurwin

    Flavors that may contain Diacetyl, are there really this many?

    It was GVC that I asked ECITA about. The test certificate is valid, but the testing that was carried out included DA but not AP, and at a detection limit far higher than Dr. Farselinos recommends. On 30th July I exchanged emails with GVC. I said and they said I hope that the answer you got...
  11. rurwin

    Official DNA 40 introduction

    The other way to use the spreadsheet. My nice spring-loaded 510 connector requires a piece of thin wire about 2cm long to connect to the centre pin. How hot will that get? The wire that I have that suits it is 7/0.2 ie 7 strands of 0.2mm diameter wire...
  12. rurwin

    Newbie after help from experienced vapers :)

    The Spinner and Aerotank may be all you need to be happy. If you decide you want to move on then I'd suggest a cheap VV/VW mod first. It won't give you much or any advantage in vaping, but it's fun to play with. It also lets to try out the larger 22mm diameter tanks like the full size Aerotank...
  13. rurwin

    Why ask about resistance/power? Why not ask amperage instead?

    Ignore me; I'm wrong.
  14. rurwin

    Official DNA 40 introduction

    Here's the Google Docs version of the spreadsheet. Far safer, just a little less pretty. https://docs.google.com/spreadsheets/d/1if6R72lxfNGpBWGICvFPHoZoOKaVuSFyPSpuYMu7GHk/pubhtml Thanks for the reminder to look into it, Dampmaskin.
  15. rurwin

    Official DNA 40 introduction

    If anyone is interested, I've just made another spreadsheet. It allows you to enter the coil data and reports the resistance for each wire size and the length of wire used. It works for kanthal, nichrome, ni200 and copper. It will allow you to enter data in mm, cm, m or inches and it will...
  16. rurwin

    Flavors that may contain Diacetyl, are there really this many?

    That's what we had with tobacco and look how long that took and what a mess it was.
  17. rurwin

    Newbie after help from experienced vapers :)

    Erm... Tbev, he's using a spinner and an aerotank and you suggest he moves to a dual-coil rebuildable? Are you sure that's not rather too large a jump in complexity at this stage? Especially when he's wondering whether he can vape at all. Personally, I'd say find out what is causing the...
  18. rurwin

    Why ask about resistance/power? Why not ask amperage instead?

    He's a salesman. He understands it pretty well and communicates it pretty well. If they had had Jon talking, the tech would have been 100% accurate, but 99% of the audience would have been confused. Maybe I can correct Brandon's mis-statement. When you have a build that is working well with a...
  19. rurwin

    Why ask about resistance/power? Why not ask amperage instead?

    VA is an interesting topic. There are a few mods that support it. The Taifun Eye springs to mind. There are advantages to all four modes: Variable voltage gives you a consistent experience however many coils you use. A single coil acts about the same as a dual coil so long as wicking and...
  20. rurwin

    Newbie after help from experienced vapers :)

    It might be an idea to try vaping pure VG with no flavouring or nicotine. It's cheap to try and it will give you a baseline for further experimentation. Just buy it at the chemist. You might want to add a little water to thin it down a touch. If you do, people recommend deionised water...
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