hi need some help if you got time

[Matt Heaton]

Hi, I have been vaping about 3 months now I started with a simple clearomizer. It wasn't enough so i moved to a kangertech emow. after awhile i still wanted more so i got a panzer 609. The first coil i built was alright it was a dual coil done with 28g wire, it read out at .9Ω. But i had to hit it for awhile and still had less of a cloud then my first clearomizer. I went to my uncles house and he built me 2 22g coils. When i got home i put them on the one side popped then broke right away so i was just running it with one then that one caught on fire after a loud pop. It even fried the spring in the bottom of my mod. I fixed all of that and started build another coil. it was terrible i tried different builds and none worked. The one i have now i can feel but it is horrible if i hit it for more then 2 seconds my throat burns i cough and there is no vapor. here is my understanding of it all

1. It does not matter how you wrap your coils for ohms. The length of the wire directly equals the ohms. For example 28g wire is 0.0172897 Ω per mm
so to get a reading of .70Ω I would need 40mm of wire.

2. mods can be unsafe when using sub-ohms, I'm not to sure what sub-ohms are I think if the ohm is a point over for example 0.09?

3. ecig juices PG= more throat hit, more flavor, thinner. VG= better clouds, thicker, sweeter.

4. I know a lot about batteries so il leave that out.

ok so I'm looking to build a coil that has a nice throat hit close to a analog, with a medium size cloud and a nice flavor.

This is my current build that does not work


Tried to post link but i can't so i may be able to pm it if someone would want to check it out

Can anyone help with what I'm looking for and tell my if what i said is correct, if not thanks anyway and I'm glad I'm here.

 

[Lessifer]

1. It does not matter how you wrap your coils for ohms. The length of the wire directly equals the ohms. For example 28g wire is 0.0172897 Ω per mm
so to get a reading of .70Ω I would need 40mm of wire.
Correct, wire length and gauge determine resistance, but coil building is about more than resistance. Size, shape, position, airflow, all have an effect.

2. mods can be unsafe when using sub-ohms, I'm not to sure what sub-ohms are I think if the ohm is a point over for example 0.09?
Sub ohm is anything less than 1 ohm. 0.09 is too low for any mech to safely run with an 18650 battery.

3. ecig juices PG= more throat hit, more flavor, thinner. VG= better clouds, thicker, sweeter.
Roughly yes, but again there are more factors, like what else is in the liquid, nicotine content(nic gives throat hit too), water, flavoring, and of course your coil build.

4. I know a lot about batteries so il leave that out.
No matter how much you know, please research the batteries we use, and the applications that we use them for. Just out of curiosity, what batteries are you using?

As for your link, you can post it with some spaces thrown in to "break" it, then whoever wants to can piece it back together and use it.

 

[Lessifer]

Oh yeah, and welcome to ECF, we'll get you sorted out

 

[drunkenbatman]

First of all, welcome! Second of all, I'm freaked out about just dropping two random 22g coils on your mod, but hey it's your face and I'll let others pile on you.

1. Check for things like hot legs but more importantly...

2. Play with your wicking. It may be that you have too much (most likely) or two little, and hence are getting really harsh vapes.

3. sub-ohms are anything under 1 ohm. If your multimeter (you have one right?) ever says something like 0.09 you need to start over -- look up your battery and what's safe sustained amperage draw is, and that'll let you know the lowest you can go in ohms.

Get your 5 posts or so in this thread and you'll be able to post your coil which'll be super helpful.

 

[Matt Heaton]

my battery is a efest 3.7v 2500mah

and drunkenbatman I know after i did that i did a lot of reading and was a little freaked out after i seen some pictures.
and a multimeter is a ohm reader?

 

[Matt Heaton]

another really dumb thing i did, this is what fried my bottom spring i made a 28g coil and put it on the other side with the 22 so i had 1 22g on one side and a 28 on the other.

before people jump me, my thinking was this stuff can't be to hard (having no understanding of it that was a very irresponsible thing to do) since that has happen i have done a lot of reading about safety and honestly was a little freaked out after reading some reports of vaping gone wrong.

and one of the reasons I signed up here was to learn more.

sorry for double post didn't see the edit button.

 

[Lessifer]

another really dumb thing i did, this is what fried my bottom spring i made a 28g coil and put it on the other side with the 22 so i had 1 22g on one side and a 28 on the other.

before people jump me, my thinking was this stuff can't be to hard (having no understanding of it that was a very irresponsible thing to do) since that has happen i have done a lot of reading about safety and honestly was a little freaked out after reading some reports of vaping gone wrong.

and one of the reasons I signed up here was to learn more.

sorry for double post didn't see the edit button.

Ok, yeah, bad idea. Try just doing a single coil, with the 28g, wrap it around a drill bit, 8-10 wraps. Then measure it with an ohm reader or a multimeter. A multimeter is a digital multimeter that you can use to read resistance, battery voltage, and check continuity. Shoot for a single coil that hits about 0.8ohm, that will be a good place to start. What kind of wick are you using?

 

[Matt Heaton]

Will doing just one coil be ok if there is 2 holes on each side of my rda should I try to plug one hole up? I am using organic cotton.

and ok I will now

 

[bohrdom]

Welcome, Matt! I'm new here too. But have been fiddling with these things for some time now.

For calculating resistance, there's a nice calculator available online to help estimate the number of wraps, if you input the wire gauge, diameter of the coil, and desired resistance:
Coil wrapping | Steam Engine | free vaping calculators

The magic number for me is ~0.5 ohms for a mech mod (higher for a protected device, naturally), but as others have said there's a lot more that goes into it. I, too, spent my first several months looking for the strong TH to better recreate the analog "experience." Adding more PG and more nic definitely did the trick for me. I've run a coil once that was at 0.1 ohms - it was not a pleasant experience. Hot as hell, kept zapping my lips on any pull longer than a couple of seconds, and had me genuinely terrified every time I pushed the button. Keep the resistance a little higher, Li battery failures are really nasty (remember that if the battery fails, you're potentially tightly gripping a little pipe bomb in your hand right next to your face).

As for the ohm meter, I'm not sure if it's cool or not to post vendor links, but I got myself something like this:
510 808 Ohm Resistance Reader Meter | eBay

All my local vape shops have a few of these scattered across the tables for people to use while building and it works really nicely. Also makes it a little easier to build, giving a strong platform to use when holding the little base plate. I have a couple of multimeters around the house from some electronics projects I've done otherwise, and it hurt a little to burn $15 on a dedicated reader - but I'm now SO SO happy I did. It just makes everything easier.

IMO, 22 gauge is some pretty fat wire to get started with. I've been really happy with 28 gauge. It doesn't push the limits of vaping, sure, but it's hard to mess up a coil and it still gives a really sweet vaping experience.

Good luck to you!

 

[dgm76513]

Yowza.

1. Yeah, a lot of batteries can't handle under 1 ohm safely. You need to know the continuous current limit of your battery and apply ohm's law. I use Efest 18650 purples which are 35A intermittent, 20A continuous, so my .35ohm coil setup is theoretically safe. The battery doesn't get hot either. An AW IMR battery will not be up to par, those have a 4A continuous limit and are usually red in color.

2. A multimeter and an ohm meter are two different things... well, sort of. An ohm meter, in context here at ECF is generally a device with 510 threads and a switch that you screw your atty on to measure your coil resistance and tell you whether or not you have a short. A multimeter is a device that performs several functions, such as testing resistance, voltage, amperage, and temperature and is generally used for troubleshooting electrical problems elsewhere, but can be applied to vaping, as you can check your coils with the resistance setting.

3. You got some reading to do before you should feel safe building a coil for use on any device. Check out these threads:

http://www.e-cigarette-forum.com/forum/sub-ohm/562106-ecf-sub-ohm-advisory.html and http://www.e-cigarette-forum.com/fo...-discussion-safety-battery-info-warnings.html
Then check out the RBA subforums here Rebuildable Atomizer Systems

Once you have a better understanding of what you're working with, you'll be blowing plumes of tasty thick vapor with much less risk.

Good luck!

 

[Soignee]

Welcome to ECF!

I would recommend you read Baditude's blogs to get a deeper understanding of safety...

E-Cigarette Forum - Baditude - Blogs

 

[Matt Heaton]

Thanks everybody I will get on to reading now, be back soon enough!