Disappointing vape from microcoil

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Dzaw

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I have been messing around with my aga t2 to try and up my vape quality from the protank. My third coil is pictured below. This is a 12/13 wrap of 28awg kanthal on a 5/64" bit. I compressed and torched the coil before installation. The wick is cotton ball, and is in a U shape, with both ends going down I to the tank. Dry firing before installing the wick showed a nice even glow growing from the middle, with no hot legs. Resistance reads 1.9 ohms.

The vape is just disappointing. I started at 8 watts, which is where I vape my pro tanks, which read 2.7 ohms consistently on this device. Flavor is definitely there with this new coil, but both th and vapor production are quite lacking as compared to the experience I get for. The pro tank. I tried cranking the wattage up, and retried at every 1.5 watts, all the way up to 15 watts. Vapor and th do get better, but still do not match the protank.

Also, at higher than 11 watts or so, the coil keeps 'poofing' there's kind of a low boil sound that I assume is partially due to the PWM of the device, but now and again, there is a louder 'poof' and what feels like a miniature balloon popping In the atty chamber. What the heck is that about?

my previous. Coil was almost identical in build, but a lot messier, and performed almost identically. I kept trying to like it, hoping that maybe it needed a break in. I vamped it on and off for a coule of days, putting like three tanks worth of juice through it. The cotton had browned ever so slightly under the coil, and never did I get a burned taste. I assumed the slight browning was from cooking juice, as there was no black nor burned taste. This leads me to believe that the wick is certainly keeping up.

thus, I am wondering just where I went wrong with this build for it to have such a disappointing overall performance?



pic of current build:
image.jpg
 

minimalsaint

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That's a lot of 28g and I assume you are getting little vapor because the length of time it takes to fully heat the coil. You can try for a couple less wraps or a thinner gauge wire- otherwise the build looks good.

I would try a couple (maybe 3 or 4) less wraps but use longer legs to get the coil as close to the air hole on the cap as possible. With micros there is a very small target to hit with the airflow and having it close to the air hole is the best bet.
 

Busted knuckles

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The boiling sound is.......boiling! You are heating a liquid after all.
The "poof" is the juice catching on fire.
I had this happen a lot when I first started rebuilding gennys, it was from shorts or hot spots in the coil. I haven't experienced it with micro coils yet though.
Maybe try some smaller gague kanthal with fewer wraps.
 
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minimalsaint

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Maybe I'll try that next time. I am always thinking of hot legs but doesn't seem to be much issue w/ larger gauge wire.

If the coil is built correctly, the legs don't heat at all- except for maybe a mm near the coil. Just be sure your coils are touching and it will fire with no hot legs at all.

image.jpg

image.jpg
 

Dzaw

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Thank you guys -SO- much!

Special thanks to minimalsaint!

I built a new coil - 7/8 wraps 28awg on 5/64 with long legs and now I'm getting a VAPE!

1.3 ohms and at 8w it surpasses the th and vapor production I was comparing it to on the pro tank.

Flavor is definitely better to boot (learning to love cotton).

Now I just need to bump it up a smidge at a time untill I find where it burns the cotton. Then I can re-wick, back it off a watt or thereabouts, and I'll be set like a jet!

Thanks again!
 

Thrasher

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OK - need to slow down now. I just made myself feel nauseated on nic with 12 mg juice. Never in my whole life thought that would happen.

getting a glass of water and going to bed.

@15W this isn't burning the wick... I love it... ooooh. Maybe not so much. Gonna hafta get some 6mg juice...

HAHAHAHAHAHA welcome to rba's (they are awesome huh)
 

emus

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OK - need to slow down now. I just made myself feel nauseated on nic with 12 mg juice. Never in my whole life thought that would happen.

getting a glass of water and going to bed.

@15W this isn't burning the wick... I love it... ooooh. Maybe not so much. Gonna hafta get some 6mg juice...

Yeah. I've been sucking on 2mg and still get TH.
 

Ryedan

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OK - need to slow down now. I just made myself feel nauseated on nic with 12 mg juice. Never in my whole life thought that would happen.

getting a glass of water and going to bed.

@15W this isn't burning the wick... I love it... ooooh. Maybe not so much. Gonna hafta get some 6mg juice...

Keep the wick wet and it won't burn. Have fun :thumb:
 

DasBluCig

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OK - need to slow down now. I just made myself feel nauseated on nic with 12 mg juice. Never in my whole life thought that would happen.

getting a glass of water and going to bed.

@15W this isn't burning the wick... I love it... ooooh. Maybe not so much. Gonna hafta get some 6mg juice...
LOL!! Another Granite State "star-gazer".....!!!:D
Did the same thing with Boba's Bounty (24mg!!) in my IGO-L!! 3-4 "toots"....and I feel like I've just smoked a pack of Djarum 76's...
ALL AT ONCE!!!!:)
(OT....Where in NH are you? I'm just east of Concord....)
Happy (vaping) Trails!
 

Dzaw

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LOL!! Another Granite State "star-gazer".....!!!:D
Did the same thing with Boba's Bounty (24mg!!) in my IGO-L!! 3-4 "toots"....and I feel like I've just smoked a pack of Djarum 76's...
ALL AT ONCE!!!!:)
(OT....Where in NH are you? I'm just east of Concord....)
Happy (vaping) Trails!

I'm in Farmington, but I work all over the state. Next time I'll be in your neck of the woods, ill shot a pm over and maybe we can get together and compare notes.
 
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