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Brew1961

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Definitely coils being used on the wrong device but you bring up another of my mantras. Hardware is Good, Software is Evil and Firmware is a necessary Evil. Since these are embedded OSes (essentially firmware) then I can deal but Software is Evil. I work for a software company. Hardware is bounded by the laws of physics and behavior can typically be anticipated( in all but high-energy physics labs ;-) ) to follow those laws. Software only advances when someone breaks a rule/law and the results can be very unusual. Firmware runs hardware so I have to deal :D

My biggest fear of these radically sub-ohm technologies is the natural-selection factor(Darwin Award) that should not be legislated away nor result in those people who choose to learn being hand-cuffed by the ignorant. Your friendly screwdriver-in-the-ac-outlet guy..Brew
 

Wharf Rat

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I know that you know a lot more than me Brew.... And you know that you know more than me.

What I do know is that you can put on a dead short on any DNA (20/30/40) and the board reads Shorted. As I understand, the DNA will not let the battery supply current thru the board to the atty.

Are you saying that it could ?
 

misplacedsooner

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Brew1961

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No not generically but I am concerned about the potential for such a coil or coil material to be used/sold for an unintended purpose and end up causing a media worthy event. "Man puts .15Ω coil he uses for his DNA40 on his 6V home-made, cloud-chasing, tube mod and shrapnel goes into the crowd" I'm amazed all the time but the number of noobs I read who are jumping right into the cloud-chasing class of sub-ohm products. DNA products seem to be a better way to go but it just freaks me out to think about the amount of safety testing that isn't done with product cycles being so short. Additionally since clones are everywhere, what if we see a DNA40 clone arrive and they don't have the expected protections in place. The potential for trouble just turns me off and also applies to sub-ohm tanks with Chinese made sub-ohm coil heads that new users may not understand or be able build/test for themselves.

While it could be possible for any VV family to have an issue with it's operating instructions, what really concerns me is the level of culpability the manufacturer has versus a typical hardware manufacturer in the US. I worked for a hardware manufacturer and our products could get dreamed up just as quickly as today's e-cig hardware but the extensive "destructive" testing we did to pass federal safety standards required a year of time. With hardware in the VV world, if something can't come to market in a 6 month period, it's DOA.

While I have interest in temperature control, I do not like the idea of individual coils below an Ohm.
I am also very satisfied with a MTL, single-coil setup for my particular needs. So to me the DNA40 is something I'll just skip since I don't want to work with coil materials with those levels of resistance. Just a little :laugh: paranoid after being an OSHA safety supervisor for a few years of my life in my families business many, many moons ago. Brew

I know that you know a lot more than me Brew.... And you know that you know more than me.

What I do know is that you can put on a dead short on any DNA (20/30/40) and the board reads Shorted. As I understand, the DNA will not let the battery supply current thru the board to the atty.

Are you saying that it could ?
 

bert1983

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I've been using nichrome wire by a local company (COchain vaping) lately on my drippers. One thing I've noticed is that when I dry burn to de-gunk the coils I have to be very careful because it is a softer material and the coil will fail far before it gets that bright yellow color that kanthal gets. Ni200 is far softer even than the nichrome...I wonder how long it would hold up if accidentally put on the wrong mod before one of the legs burns out?
 

Brew1961

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Really good point! I'm not trying to tell anyone that they shouldn't use the DNA40 and associated materials. I'm just freaked out by the potential. I live by Ohm's law and these resistances are just mind boggling. I trust Wharf and his Dark Star mod without reservation but just don't want to jump on the "how low can you go" Limbo bandwagon. I'm showing both my age and level of paranoia :facepalm:

I fully realize that the amount of testing required for an on-off circuit is not huge and the successive revisions of the DNA chip has equated to years of safety testing but what about the eBay or Alibaba.com "supposed" DNA40 mod that is nothing more than a timing circuit and cheap wattage display that fires a relay to provide a series connection to (2) 18650 batts looking at a .15Ω coil. If the coil material itself acts like a slow-blow fuse by quickly disintegrating then perhaps it isn't a big issue. But if that momentary 56A load hits a pair of XYZ unprotected Li-ion batteries and they initiate a thermal-runaway then who is going to incur the wrath of the Nannies/Antis...Us!

Realize that 80% of my vaping is done on REOs and my world is Mechanical so when we go VV/VW I still prefer to keep things safe and simple. I wrap 10 wrap micros on a 5/64" form with 28ga Kanthal providing a consistent 1.2-1.3Ω resistance and use the same setup on everything I vape. It would be fairly difficult for me to ever cause any kind of issue if I never had ultra-low resistance wire in the house. Brew

I've been using nichrome wire by a local company (COchain vaping) lately on my drippers. One thing I've noticed is that when I dry burn to de-gunk the coils I have to be very careful because it is a softer material and the coil will fail far before it gets that bright yellow color that kanthal gets. Ni200 is far softer even than the nichrome...I wonder how long it would hold up if accidentally put on the wrong mod before one of the legs burns out?
 

bonniegirl

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A+++ Brew...........Whew...........I thought I was the only paranoid old flatulent person around. I get at least 3-5 "kids" a week asking me to help them buy the stuff to "sub ohm and blow big clouds." I ask if they were smokers and if they say no I tell them I can't help. If they say yes I always tell them to learn how a proper atomizer set up works first. I ask if they want to quit cigs or join a circus. My GS's Godfather was an electrical engineer and he taught me basic vaping 101 from an electricians eyes and I will say this.......HE SCARED ME!

Needless to say......I meter everything ......check twice and then re meter. I do .....also......like the sub tank or a single coil but I get so paranoid my heart flutters and we don't want THAT.

I am not against ANY experienced vaper building any ohm coil they like. Vape On!
As for me and my house? I don't think I am smart enough to push the limits Anywho........how could I see my beautiful trippy tip in the clouds?

I do want to know this. Does anyone REALLY taste a difference in flavor from 1.3ohm to .3ohms? I didn't and I don't. Maybe my tongue is too old?
 

Reidus

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I see both sides of this: the biggest draw to sub-ohms is the amount of vapor. It's much closer to the effect of actually smoking. When I first started vaping, I couldn't quit smoking using the V2's mostly because, in retrospect, they simply didn't put out enough vapor. It took me going to clearos/carto tanks before I finally kicked the habit. Even now, first thing in the morning, I'm grabbing my DS 40 with my Sub-tank to get the clouds to help me wake up. However, like Brew and Bonnie, I'm leery of sub-ohms, because I also know how things can go wrong. As far as noobs who've never smoked, I always tell my kids: "I'm a vaper. If you smoke, vaping is great way to quit. If you've never smoked, DON'T VAPE! Just because it's not as bad for you as smoking, it's still not good for you."
 

Brew1961

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Good Afternoon Trippyville,

I still remember my Totally Wicked Screwdriver MKII with 901 atties and cartridges! Oh to have had an itaste and a nautilus mini back then :ohmy:

I have to admit to getting one non-smoker onto vaping zero-nic. :facepalm: He was a long-time smoker that quit cold-turkey 5+ years ago when his wife developed breast cancer. About 2 years ago he switched jobs and became a chauffer where he sits for hours on end in his limo waiting for his fares. He began to pine for something to do during those hours of boredom. He came by to visit one evening and commented that he has really been dying for a smoke of late and I suggested he try an e-cig instead. He say oh no I don't want to ever get on nicotine again and that's when I told him about zero-nic juice. He's now my PIF recipient for technologies I try yet don't decide to stay with and he's rocking Kayfun minis and a Russian 91% clone right now. He vapes Tasty Vapor 0mg Doublers and loves him some bakery flaves. Teddy Grahams, Peanut Butter Cookie & Oatmeal Cookie. See him and his wife about weekly and he's yet to complain of ever wanting to smoke again. :vapor:

I see both sides of this: the biggest draw to sub-ohms is the amount of vapor. It's much closer to the effect of actually smoking. When I first started vaping, I couldn't quit smoking using the V2's mostly because, in retrospect, they simply didn't put out enough vapor. It took me going to clearos/carto tanks before I finally kicked the habit. Even now, first thing in the morning, I'm grabbing my DS 40 with my Sub-tank to get the clouds to help me wake up. However, like Brew and Bonnie, I'm leery of sub-ohms, because I also know how things can go wrong. As far as noobs who've never smoked, I always tell my kids: "I'm a vaper. If you smoke, vaping is great way to quit. If you've never smoked, DON'T VAPE! Just because it's not as bad for you as smoking, it's still not good for you."
 
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