1st coil build and voltage question!

[whiteweazel21]

Ok, so I actually got the Lemo a day early and the flavor compared to the Atlantis is night and day.

I put about 30 ml on the stock build, and maybe due to dry mouth or the cotton being worn, the flavor seemed to fade a bit. I am not hydrating at all though. Generally, how many ml do people go through before re-wicking? I guess it's subjective and based on the resistance of the build. Say a 1ohm?

Second, I rewicked twice, trying to adjust. Damaged the coil a bit when pulling out my initial cotton, so figured I'd try a build. Holy damn...those small screws, annoying wire lol. I'm using a coilmaster jig so the microcoils are coming out perfect, but still have difficulty placing in the posts and making adjustments without damaging the coils.

I went through a couple wraps, coils, etc and ended up with I believe 6 (7?) wraps of 28 gauge kanthal on a 3mm and have a resistance of 1.7 ohms. Does that sound normal?

Secondly, I was told my battery was fine for the Atlantis, but as I'm learning about ohms and coil wrapping, at 1.7 what would be a safe voltage? At 14.5W (for flavor) I am getting a 5V reading through the mod. Is that ok? I am using an Efest battery with 20A discharge:

2014 new released!!! Flat top efest 26650 4200mAh battery 50A high drain battery -Efest battery for E-cigs

What is my voltage limit? If someone could go over the math with me I'd really appreciate it. I have done a bit of reading on the subject, but now that it pertains to my build I am a bit lost...I did try a calculator, but I am missing where the wattage of the system comes into play, and the difference between the voltage of the battery and the reading on the mod. Am I not supposed to go above the 3.7v of my battery?

Also, if I wanted to get lower ohms what would I need to do? I don't want less wraps, so do I increase coil size or decrease coil size if my target was 1ohm?

My internal mod temp is going somewhat high (36C), but still a decent amount cooler than with the Atlantis (up to 45C). The battery is cool, so I'm assuming I'm in safety limits. Would appreciate some insight though. I did read a lot, but apparently not enough! It's completely different with a cartridge setup and varying ohms/wattage/building.

Thanks!

 

[Susan~S]

What mod are you using? If it's regulated you should have received something with it that gave you the specs.

 

[whiteweazel21]

Hi Susan, it's a Cloudpor T6. Let me see if I can find any information regarding specifications...

Just found it, linked:
http://www.cloupor.com/cloupor-t6-100-watts-26650-battery-box-mod-for-sale

I guess I am supposed to look at this:
Output voltage : 3.6V—9.3V

So if the mod is reading 5V I am fine in that case? Can I go all the way to 9.3 with the 1.7ohm rating -- how do I know what the battery can handle?

 

[Wolfenstark]

Ok, so I actually got the Lemo a day early and the flavor compared to the Atlantis is night and day.

I put about 30 ml on the stock build, and maybe due to dry mouth or the cotton being worn, the flavor seemed to fade a bit. I am not hydrating at all though. Generally, how many ml do people go through before re-wicking? I guess it's subjective and based on the resistance of the build. Say a 1ohm?

Second, I rewicked twice, trying to adjust. Damaged the coil a bit when pulling out my initial cotton, so figured I'd try a build. Holy damn...those small screws, annoying wire lol. I'm using a coilmaster jig so the microcoils are coming out perfect, but still have difficulty placing in the posts and making adjustments without damaging the coils.

I went through a couple wraps, coils, etc and ended up with I believe 6 (7?) wraps of 28 gauge kanthal on a 3mm and have a resistance of 1.7 ohms. Does that sound normal?

Secondly, I was told my battery was fine for the Atlantis, but as I'm learning about ohms and coil wrapping, at 1.7 what would be a safe voltage? At 14.5W (for flavor) I am getting a 5V reading through the mod. Is that ok? I am using an Efest battery with 20A discharge:

2014 new released!!! Flat top efest 26650 4200mAh battery 50A high drain battery -Efest battery for E-cigs

What is my voltage limit? If someone could go over the math with me I'd really appreciate it. I have done a bit of reading on the subject, but now that it pertains to my build I am a bit lost...I did try a calculator, but I am missing where the wattage of the system comes into play, and the difference between the voltage of the battery and the reading on the mod. Am I not supposed to go above the 3.7v of my battery?

Also, if I wanted to get lower ohms what would I need to do? I don't want less wraps, so do I increase coil size or decrease coil size if my target was 1ohm?

My internal mod temp is going somewhat high (36C), but still a decent amount cooler than with the Atlantis (up to 45C). The battery is cool, so I'm assuming I'm in safety limits. Would appreciate some insight though. I did read a lot, but apparently not enough! It's completely different with a cartridge setup and varying ohms/wattage/building.

Thanks!

Hello whiteweazel21 I just change my wick when i feel like it - sorry to be vague. Changed one tonight and it was one week since I put it in.
Probably went through 10 mL it would have lasted longer but felt like putting in a new one.

The 6-7 wraps 28 g 3mm at 1.7Ω sounds normal. If your going through the holes your leg length the wire from the wraps to the end will be longer than wrapping under the screw heads. I did it that way for the first build but I find it easier to wrap under the screw heads as i don't have to bend the wire to go through the holes.
20amp battery is safe at 1.7Ω and 5v.
Go here to check coil build info and battery drain info.
Battery drain | Steam Engine | free vaping calculators
1Ω with a 3mm bit is around 4 wraps at 28 gauge or say 7 wraps at 26 gauge.

 

[Wolfenstark]

1.7Ω and 9.3 volts you will keel over before the battery.
I got a 1.8Ω in the lemo atm and at 13 w 4.8v

 

[whiteweazel21]

Well I went through a couple iterations, messed up about 10 coils or so. Some burned off, some fell off the posts, some got distorted. It really is an art to place the coil in the posts, re-position, and get it burning evenly. I followed a few videos, and ended up following a post on reddit.

I went with 7 wraps of the included wire with the Lemo on a 2mm shaft, and got a 0.71 ohm build. The clouds blow away what I was doing on the Atlantis, and I'm just using it at 7 watts right now, as opposed to 20-30w on the Atlantis. The flavor is there too, much better.

I am getting an off-gassing sound after I pull and release the fire button, sort of like a release of steam or something. Is that normal, what could be the reason for that?

One of my previous builds ended up getting dry and burnt after a few minutes. I'm guessing maybe due to wick positioning. Hoping this time around it will hold because so far so good! I would say I spent roughly 3 hours total to get my first build done, hoping this is the one!!!

 

[whiteweazel21]

I think the off gassing sound may be from too much vapor...after I let go, if I inhale without firing I can still inhale some smoke. Is there some logic behind that? Maybe open the air holes on the Lemo some more to suck in more vapor? Or close it off?

OMG the flavor is sooooo good, and the smoke it sooooo smooth! If I can build something like this regularly I'm never using the Atlantis again!

 

[whiteweazel21]

Also, adjust firing technique. I think I just don't need to hold it that long as with the Atlantis..

 

[DavidOck]

My Lemo came with 26, big, fat wire. I prefer 30, since the heating and cooling action is so much faster.

But the continuing noise you hear after releasing the fire button is normal with big wire. Due to the extra mass, it takes longer to heat - i.e. need to fire a bit before you get vapor - and longer to cool. So after you release, there's still enough heat left in the coil to keep vaporizing for a bit.

When taking out a wick, cut it close on one side, then gently pull out the other side

Getting the right amount of wick can take some trial and error, but well worth it. Sounds like your on the right track!

 

[whiteweazel21]

Although, I am finding if I go to higher wattages, or even at 7w, if I fire really fast/long I am getting burnt flavor. Is that due to a hot spot in the coil most likely?

Or maybe as David mentioned, since the wire is thick it needs more time to cool? Are micro coils worse for chain vaping?

Seems if I don't chain vape too strongly I don't get the burnt flavor. Maybe a combination of a hot spot and the larger diameter coil? How to modify for more effective chain vaping? Can't stop lol...

Seems all is good if I don't hold the fire button too long. Shorter bursts seems to work, so I am guessing it is due to a hot spot?

 

[DavidOck]

Sounds like it could be a wick problem. Too little and it won't draw the liquid quick enough. Too much, and it can choke off the flow. Either can lead to the burnt flavor...

Or, as you mention, could be a hot spot or a hot leg on the coil itself.

Air flow can also be a part. Too much air and it can't wick enough to keep up. Too little air and there's a tendency to draw too hard, although that usually shows up as getting drops of hot juice on your tongue...

 

[Rsunderl]

At higher wattages, you are heating the coil faster and hotter. Just back the power down a bit and you'll be fine.

 

[whiteweazel21]

Hmm, well I did notice on the build it lights up red hot really fast even at 7w. Maybe it is overheating, or maybe there is a hot spot. The coil glowed from the inside out pretty evenly, but the last wrap on either side did not glow evenly.

I tried to adjust as much a possible, but every time I ended up ruining the coil so I got it as close as possible. Could that be part of the issue?

I'll try doing more research on the wicking, but it did seems fairly decent. As long as I don''t fire too long it seems ok, even can chain fairly decently. I will try a more spaced out coil on the next build, that or a few additional wraps.

If I get a higher resistance, it should burn slower correct? So maybe I will try a 1ohm-1.5 ohm build by adding additional wraps.

 

[DavidOck]

Higher resistance will just mean you need a higher power setting to get the same vape. (Sort of....) But...

I'm not a high power vaper. I generally build to 1.4 to 1.8 Ω, 30 gauge on a 2 mm mandrel, open spacing, rayon wick. And vape, depending on flavor, between 7 - 10 watts. That's the way I like my vape, not gospel!

Part of vaping is finding out what you like, so just take all the "advice" you get as opinion and as options.

 

[whiteweazel21]

Priming it by sucking with the air holes blocked off did seem to help though. So it could also be a lack of juice to the wick. That being said I've gone though half a tank since I posted a few minutes ago...this lemo is scary!

 

[whiteweazel21]

Thanks David.

Why is it that on the Atlantis, it reads 0.60 on my mod, but it can fire from 7w (lowest setting on my mod), all the way up to 40w like some people on the forum say it's best?

 

[whiteweazel21]

I finished the tank and took it apart. On one side the cotton was raised off the deck, the other side was where I placed it. I stuck it back down, and tucked a small bit into the channel. Seems that fixed the burnt vape! We'll see haha

I did notice the atomizer as a whole is getting really hot though, only running at 7w, why is that? The wattage and the voltage running through the mod (2.2) are both really low. Why is it running so hot?

 

[DavidOck]

Don't have your mod, but 2.2 volts at your 0.6 Ω coil is a hair over 8 watts. And iirc you said you chain vape?

Turn on an incandescent night light. Leave it on for oh, say 5 seconds. Touch it. Hot! Don't linger!!

And they're typically 3 - 5 watts.

BTW, you can set either VW mode or VV mode, not both. In VW you set your preferred watts and the mod automatically adjusts the voltage to hit that regardless of the coil resistance. (Within operating specs, of course.)

And the wick not reaching to the bottom will certainly not perform well. But you want the wick touching the bottom, not stuffing the channel. Some wet, trim and position, I use the "bunny ears" method. (Since I'll often rebuild / rewick and not fill right away. Since I'm not sure what flavor's going in.... hard to decide what to wet with.)

 

[whiteweazel21]

Hmm.

Why is it that the Atlantis has such a wide wattage range at 0.6ohms, but I need to keep it low on the Lemo at 0.7ohms? If I set the Lemo much higher than 7w on the current build it's going to burn like hell I think -- don't even want to try. But the Atlantis I can take to 40w and not even have a thought of a burnt hit.

The mod circuit temperature reading is a lot higher on the Atlantis, but the Atlantis itself remains fairly cool. Although the vapor in the Atlantis does get pretty hot. Is that more to do with construction materials? I think the Lemo is made from aluminium and the Atlantis from stainless steel.

So what kind of build on the Lemo would be more conductive to chain vaping?

Thanks

 

[DavidOck]

Don't know if your mod has true step-down capability - the ability to deliver less than the battery voltage. Many don't.

And if iirc, the Naut is a dual coil device, so will need and use higher power for a similar vape.

Maybe