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Dmeinder

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Nov 12, 2014
32
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Alberta, CA
Hey BillyBC....Thanks for the response.
I think there are several factors though, as the 1.4 build I did place low over the air channel, and compared to the OCC, I think this is a lot lower, so maybe contributing to lower temps.
Also, I think the diameter might have been a factor, as I used 1/8 bit which "just" fit between walls on the deck.
Lastly, I think I was also getting used to the tank, as now I can lung hit 9mg with the 1.2 occ for 8 seconds with no discomfort. (70pg30VG)

So not sure how much cooler it actually was, but I remember initially it was cooler with no discomfort, no loud popping, and the flavor was just as good as occ.
(used the same juice for comparison purposes).

Hey......I forgot to ask in previous post, when I said I was aiming for the wraps to be as close as possible - is that a mico coil? where the wraps are touching each other? What is the difference between spread wraps and touching wraps? as the OCC and the pre-built for the RBA do not have touching wraps?

(BTW - I do bring spare tanks (Genitank & T3D) and a spare battery with me - IPOW2 - The tanks are filled and ready........I don't know why, but I trust that more in my pocket than a juice bottle, maybe I just got used to that when I wanted different flavors with me for the day...haha)

(reading your post above, I thought it was too hot at first too, that's why I ventured to building right away....and the RBA was definitely cooler, but as I said.....I can now lung hit 9mg PG based with ease on the 1.2 OCC)
Cheers
 
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shreduhsoreus

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Jan 6, 2015
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So is it safe to assume that people don't generally vape super strong menthol in these kinds of tanks? I switched to my super menthol for my second tankful and my lungs did not appreciate that very much lol. Halfway through I had to empty it back into the bottle because my COPD symptoms came back almost full force. Switched back to my Holdfast blend and all was good.
 

Paramaniac413

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So is it safe to assume that people don't generally vape super strong menthol in these kinds of tanks? I switched to my super menthol for my second tankful and my lungs did not appreciate that very much lol. Halfway through I had to empty it back into the bottle because my COPD symptoms came back almost full force. Switched back to my Holdfast blend and all was good.

First juice I tried in it was my Kringle's Curse...I will never make that mistake again! Not only did my lungs not appreciate it, but I got chills from the peppermint. Definitely NOT for strong mint/menthol flavors. lol
 

underwhelmd

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in these tanks because flavors do come out as more flavorful or intense, imo , i would blindly suggest to reduce the strenght of the menthol

I made the mistake of putting 5 pawns Gambit 6mg into my subtank. Gross. Almost got ill. Unless you really really really like the base they use, don't do this. My first time trying any 5 pawns juice. Ended up putting it in an aerotank and it's perfect.
 

Dmeinder

Full Member
Nov 12, 2014
32
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i had popping, hot spitting, hot tip but not so much anymore but idk what i changed lol.
8 sec pull, wow
btw i dont have the clear insulator i have the tan, bad eyes, will post pics later
Haha... Guess I was wrong, it's actually 4.5 seconds via the istick display.... Sure felt like 8 secs.... My bad.

I just love this tank!

Cheers!
 

Bammer555

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Dec 13, 2014
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Under wicked. Larger diameter coils need a lot of wicking density. I know it seems backwards that more wicking density increases flow rate but it works. Try it, you'll see.

Increasing the size of the juice channels can reduced juice availability to the wick. That probably sounds backwards too but it's not. The juice channels in RTAs are precision designed to take advantage of a principle in physics called the capillary effect. Its a simple phenomenon to conceive but a complicated calculation. Enlarging the juice channel size in your device will lower the normalized level of the juice in the channels making it harder to feed the wick.

Just say'n, it's just not necessary to modify the STMini RBA to vape at 25w with 65% vg and no dryhits.

Thanks for the tip Cig, I'll give it a try tonight! I started with thicker wicks and had been slowly getting thinner and thinner. I've also had the same problem with rewicking the OCC coils but as I recall the first one I did was a fatty and lasted longer but I slowly started getting thinner with those as well. Your right going fatter does seem backwards but I am a complete newb with coils and wicking.

Any pointers on rewicking the OCC coils?
 

Bammer555

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Dec 13, 2014
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Thanks for the tips those who gave them. I'll have to tone down on my menthol and switch up my flavors more I suppose.




https://www.youtube.com/watch?v=WMUOtwsd7_E

That's about the best I can do for you haha

Thanks, I've watched all the you tube vids and I'm just doing something wrong. I'm thinking Cig is right and I'm under wicking both the rba and the OCC coils. There both very easy to rewick but getting the wick right is the trick. I usually end up with very few bubbles and dry hits. I just got done rewicking the rba with what I would think would be to much cotton(according to some of the videos.) and early results are I'm getting more bubbles then I normally get:D. The flavor seems muted causing me to raise the wattage ever so lightly. I always kept watts around 15-18w which never made since to me since many are running 25-30w

Another thing I'm noticing is the vape temp is much cooler then normal, which is a good thing! I'll update when I've got more time on this wick.
 

cigatron

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May 14, 2014
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Thanks for the tip Cig, I'll give it a try tonight! I started with thicker wicks and had been slowly getting thinner and thinner. I've also had the same problem with rewicking the OCC coils but as I recall the first one I did was a fatty and lasted longer but I slowly started getting thinner with those as well. Your right going fatter does seem backwards but I am a complete newb with coils and wicking.

Any pointers on rewicking the OCC coils?

Excellent, glad it's working better for ya. Yeah, more juice in heavier wicking requires higher power but you should also be seeing thicker vapor density and improved flavor there. Hope you are. There is a little magic when wicking with cotton. Get it just right and the first 1/4-1/2 tank seems less than spectacular but from then on it really starts chuck'n it hard. Wicking lasts longer too because it doesn't collapse away from coil ID as quickly.

With occ's I step outside and burn the factory wick in half so it's easier to remove; it's really packed in there tight. Dryburn the coil a couple of times and rinse off the ash. Rewick and cut the tails to 1/8" outside of the wick head. Poke the tails into the holes in four directions so it flares out on the inside of the head around the hole. Done.

Good luck
 

underwhelmd

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Nov 22, 2014
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With occ's I step outside and burn the factory wick in half so it's easier to remove; it's really packed in there tight. Dryburn the coil a couple of times and rinse off the ash. Rewick and cut the tails to 1/8" outside of the wick head. Poke the tails into the holes in four directions so it flares out on the inside of the head around the hole. Done.

Thank you.
 

cigatron

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Seriously? You opened a case of STminis, broke the wrapping/seal on each of the boxes, and measured each RBA juice channel? Wow. (I truly am impressed...not being sarcastic here...it just seems unusual to go to that effort in any normal circumstance.) Did you have doubts about the size of the channels beforehand? I mean, what would make you go to that effort? Just curious.

That attention to detail is pretty intense. As a buyer, I would prefer to break the wrapping/seal myself, but then again, having it checked over before hand by an expert sounds okay too I guess.

What I am referring to on the channel at the deck...with the sleeve/chamber screwed on...I could not even put a needle point into the opening where the sleeve/channel/deck converge. So I "drilled" that top quarter of the channel larger, opening up, what seemed to be a choke point.

We seriously did open the whole case full, but not just to measure the juice channels. The store owner wanted to check all the insulator's color and tighten all of the positive airtube stems too. All known issues with the device were addressed. Super good people wanting their customers to have the best out of box experience. Maybe that's why their store is packed all the time. What the heck, I got a free bottle of juice for giving them a heads up and satisfied my ocd cravings.

Yes, I had doubts about consistency of the juice channels from posts in this thread. I was unable to reach the power levels others were at; turned out to be under wicking.:facepalm:
 
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MacTechVpr

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Aug 24, 2013
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I made the mistake of putting 5 pawns Gambit 6mg into my subtank. Gross. Almost got ill. Unless you really really really like the base they use, don't do this. My first time trying any 5 pawns juice. Ended up putting it in an aerotank and it's perfect.

You've just highlighted why vapor density is needed to bring out the nuances of complex flavor mixes.

It's not all about vapor volume.

(Or the lament: Once you've had a real vape it's almost impossible to suffer a flavor station.)

Congrats, and good luck.

:)

p.s. Post above tells why. Match flow to the wind.
 
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RandyF

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Apr 1, 2013
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I think I remember seeing something about this somewhere, but I have no idea where, so I will ask here.

I have 2 ST mini's that I have been using on my original VS rDNA40, no problems. I just bought another rDNA40 today and one of the mini's says "check atomizer" when I put it on the new one. If I put it on my first rDNA40 it works fine, but the new one won't read it. I assume it is the 510 connection just being a hair too short to make connection to the rDNA40 510. Has anyone removed the 510 pin on the ST mini, if so how did you remove it? Once I get the 510 out I will rig something to extend it a bit, but I would rather not mess it up guessing how to get it off.
 

Dmeinder

Full Member
Nov 12, 2014
32
22
Alberta, CA
Re-wicked the coil that was burning this morning... And wow! Super vapor and flavor compared to the 1.2 occ. I did move the coil lower with a drill bit as suggested, and wicked thicker, then trimmed using the base as a guide. Then dripped some juice and tucked the wick down and made a slot for the juice channels as another member posted with the pictures a while back.

Thanks to all the suggestions.... Really does the job.

Cheers!
Btw coil is 1 ohm 26g A1 8/9 wraps around size between kit screwdriver and 1/8 bit, and at 23W on an istick 30w
 
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vjdossey

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Aug 12, 2013
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Okay so I got my mini today. sweet vapes has this on the siteRBA BASE INSULATOR:

"We were informed by Kangeretech that the insulator issue does not affect our Mini Subtanks. We do have both tan & clear insulators and we were assured both are good. If you have a preference for one or the other you may leave a note in the comments of your order."
I left a note asking for the brown insulator. However, it appears I got the clear one. Not sure I'm gonna complain... then the voice in my head says, if you wait you're out of luck if/when it goes bad... what to do?
image.jpg
 
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