Protank MicroCoil Discussion!!

[MacTechVpr]

^^^ Trying a 28g build now, 12 wraps or so on a needle that's about 1.7-1.8mm.. Hoping for around 1.8ohms

I gather you're winding on a 16 Ga. which will put you on the low side of 1.75mm. A 15 Ga. will set you in the approx. center. I prefer not to use them except with finer wire lacking the leverage that I require. Here's a list of approximate metrics…



Blunt Disposable Needle Guages

Good luck!

 

[M_DuBb716]

Yes Mac, 16 ga needle I believe but may be 15. Thanks for the great PM, I will get back to you asap I promise!


^^ Here's the 28g micro I just wrapped, after installing but BEFORE burning & squeezing/tightening. I think I'm getting the hang of this thing huh??
... Well I THOUGHT so.. I am getting a 2.6OHM reading on my eVIC??!?

?!?

 

[M_DuBb716]

I don't get it, the coil definitely not touching anywhere..

13/12 wraps of 28g, 16g (maybe 15g) needle to wrap. 2.6ohms?? Hmm, what gives?
.. By the way, probably could have fit 14 wraps in there

 

[vdaedalus]

That's a gorgeous wrap, pre-burn, damn!

Try firing it a couple of times, then unscrewing it and re-screwing it in before checking again. I've had my eVic fudge the reading a bit before.

Edit: where did you get your wire from? that looks a bit slimmer than 28 to me, almost like 30; which might even come to over 2ohm at 13 wraps...

 

[M_DuBb716]

Maybe the store mis-labeled my 28gauge and 30gauge that I bought today
..... which would be VERY disappointing, seeing as I just spent over an hour of my Saturday night on this!

 

[MacTechVpr]

I don't get it, the coil definitely not touching anywhere..

13/12 wraps of 28g, 16g (maybe 15g) needle to wrap. 2.6ohms?? Hmm, what gives?
.. By the way, probably could have fit 14 wraps in there

That's a gorgeous wrap, pre-burn, damn!

Try firing it a couple of times, then unscrewing it and re-screwing it in before checking again. I've had my eVic fudge the reading a bit before.

Edit: where did you get your wire from? that looks a bit slimmer than 28 to me, almost like 30; which might even come to over 2ohm at 13 wraps...

It certainly is Ollie! But looks narrower, yes. They're notorious eVic's for that false high read. I have to recycle the power on one of mine after that happens.

I think I'm going to meet you gentleman half-way over the course of this next week as I start building tables based on 29AWG. But I'm baffled at your quests at 28g as I'm getting an abundance of flavor and vapor at 8 or 9 turns, 1.8Ω, 6.5-7W. Than again I run on high test, 94-96 VG and rich flavors.

Never mind.

Good luck!

 

[M_DuBb716]

Yep, i think they gave me 2 spools of 30gauge.. This really pisses me off, I just can't win

 

[M_DuBb716]

I ordered 20ft of 30ga and 3ft of 28ga, they got it backwards, and therefor messed up my night lol..

Now I'm not even sure If I wanna just vape this thing and call it a night, or build another.. It's a very nice coil, but being 2.6ohms, it's taking awhile to heat up. Not ideal for my eVic. This sucks!! What a waste

 

[vdaedalus]

But I'm baffled at your quests at 28g as I'm getting an abundance of flavor and vapor at 8 or 9 turns, 1.8Ω, 6.5-7W.

For me the extra wick- (and therefore juice-) to-coil contact area has made a world of difference. My wicks, when I change them, are considerably less charred (even at 7W, when I go that low), over a greater area; I've actually been changing out wicks less frequently as I'm getting more mileage out of them. Much more consistent flavour, if not 'better' flavour overall (I'd argue better, but that's awfully subjective). Is that 1.8ohm you're quoting with the 30AWG?

 

[vdaedalus]

I ordered 20ft of 30ga and 3ft of 28ga, they got it backwards, and therefor messed up my night lol..

Now I'm not even sure If I wanna just vape this thing and call it a night, or build another.. It's a very nice coil, but being 2.6ohms, it's taking awhile to heat up. Not ideal for my eVic. This sucks!! What a waste

Crying shame, that is one of the nicest, if not THE nicest, Protank recoils I've ever seen. I'd vape it for a while, slow heat or no.

 

[M_DuBb716]

It really is a shame, that was definitely the nicest coil I have ever wrapped.. I took it apart and unwrapped it, knocked down to 9/8 wraps. 1.7ohms now (wish I could've done 10 wraps but the wires were too short).

Ugh, guess I'll save my 28g for tomorrow night if I have more time

 

[MacTechVpr]

Yes Mac, 16 ga needle I believe but may be 15. Thanks for the great PM, I will get back to you asap I promise!

Like I said, thanks for the ack.

Here's the 28g micro I just wrapped, after installing but BEFORE burning & squeezing/tightening. I think I'm getting the hang of this thing huh??
... Well I THOUGHT so.. I am getting a 2.6OHM reading on my eVIC??!?

?!?

Was a great wind. There'll be more. Just curious what maker wire you're running since you seem to be consistently running about 1Ω below me. So I may look up the res/ft.

Good night all and good luck!

 

[M_DuBb716]

Thanks for the support Mac, I get my Kanthal from my local vape store. I'm going to start buying wholesale online

Changed it from a 13 wrap to a 9/8 wrap, 1.7ohms, priming now. Still a nice coil!! And now it heats up quick like it should.

^Here's the beautiful 13-wrap before I had to dismantle it^^Here's the resulting 9/8 wrap, 1.7ohm
^^Too much wick??^^After priming, better idea.. Too much wick??

 

[M_DuBb716]

Correction, 1.8ohm, at 8/9 wraps of 30ga.. I can tell I built a good one cuz even at 5watts/3volts, it's already spitting out thick vapor!! On a fresh built/wicked coil, I start at low wattage and than work my way up to 7 watts

edit: flavor seems a bit off though but still vaping at low-wattage so that could be it

 

[MacTechVpr]

Thanks for the support Mac, I get my Kanthal from my local vape store. They censor my vape store's name on here (Juicy, than the word Vapor), for some reason. I'm going to start buying wholesale online

Changed it from a 13 wrap to a 9/8 wrap, 1.7ohms, priming now. Still a nice coil!! And now it heats up quick like it should.

...After priming, better idea.. Too much wick??

Looks even more perfect after the de-wind. Looks about right to me as it's already saturated. You should be able to tell from the pull. If you can detect a difference, even slight, it prob is. It shouldn't have any effect on draw. That's the ticket. The rest is flavor. My tendency is more is better until the flow is affected. But then I cut my tests on cotton short for Eko with more predictable density. That looks perfect to me though.

That would be about right for res from you as you're ~1Ω shallow relative to my results…
30AWG, 8/7 1.75mm i.d. microcoil = 1.85Ω √

Looking good, I'd say, on that pretty wind.

Up since 4, gotta run.

Night all.

 

[M_DuBb716]

G'night Mac, thanks for the remarks.. It's vaping nicely, but I think I need to be closer to 2.0ohm for the flavor I love, and best functionality on my eVic

 

[Flavored]

I got 100 ft of 29G on eBay for less than $7. It is my sweet spot for getting my ohms to about 2 with a nice "cooking area."

 

[Jellyfish]

You should be able to tell from the pull. If you can detect a difference, even slight, it prob is. It shouldn't have any effect on draw. That's the ticket. The rest is flavor. My tendency is more is better until the flow is affected.

I agree wholeheartedly with Mac's assessment on building cotton wicks here, although my more recent builds have been on a different device. I've used the 'less is more' technique and found the flavor to be lacking and I also went overboard and stuffed the cotton into the coil until it presumably choked off the juice feed/flavor.

My current technique for making cotton wicks is to pull off a strip of cotton maybe to a thickness of 2 X the diameter of the coil (maybe a little more or less as I've never actually measured it). I fluff it out a little and then compress it by rolling the wick without twisting it. I feed the pointy end through the coil and pull it through from the pointy end and push and compress the trailing end. However, I do notice a definite resistance as I feed the wick through the coil as opposed to some of the other posts I've read in other forum threads.

Unfortunately, this is not as easily the same repeatable process as actually making the coil itself. And the wick building is somewhat more of a 'feel' thing. But through trial and error and your mental notes, it becomes easier and easier as you go along.

Good luck!

 

[MacTechVpr]

I got 100 ft of 29G on eBay for less than $7. It is my sweet spot for getting my ohms to about 2 with a nice "cooking area."

G'night Mac, thanks for the remarks.. It's vaping nicely, but I think I need to be closer to 2.0ohm for the flavor I love, and best functionality on my eVic

Gentlemen, I couldn't agree more. It seems to be the outstanding optimal for the geometry of this tank. I hit it precisely and consistently with a tight wind (no torsion or tension) with…

30AWG, 9/8 1.75mm i.d., m.c., tight = 1.99Ω √

Vaping it now on a KPT 2.5 (no-glue) and Sigelei slant-top Rev3 telescope @ 7.5W.

However, I am now experimenting with torsion on both instrument screwdrivers and jigs and will post more results as they are validated and significant.

What I haven't talked about regarding more than 100 builds on the KPT (running eleven different builds today) is that virtually all of my testing has been done on the most densely adverse of liquids to heads and wicks known to man, including the delightful Boba's Bounty. For my own pleasure I rely on my own concoction of Johnson Creek Tenn Cured blended with more soluble breeds of light tobacco's still at no more than 10% PG for the Kanger's. Also I enjoy a very smooth blend of Alien Visions Honey Flue and my own variant of the preceding which produces outstanding vapor. With these and the builds I've described I can blow clouds or enjoy vapor on par with any of the drippers I've encountered so far with cotton. I am using Nextel XC-132 presently and exclusively for these tests finding its wicking qualities to be superlative at the 1.5-1.8mm diameters and in practical terms easier to deploy than cotton for its density considerations. I'm working with the two present suppliers to encourage their continued expansion of their inventory, the trial of these products by users and have volunteered results of my studies to them to further options available to the vaping community.

I hope you benefit from some of these results and chance to try some of the builds, materials and methods.

Good luck!



p.s. I would admit I hit the 10 sec cutoff a lot, lol, on lung pulls. A lot easier with a dual-coil Forge or Trident and a lot of air.

 

[MacTechVpr]

I agree wholeheartedly with Mac's assessment on building cotton wicks here, although my more recent builds have been on a different device. I've used the 'less is more' technique and found the flavor to be lacking and I also went overboard and stuffed the cotton into the coil until it presumably choked off the juice feed/flavor.

My current technique for making cotton wicks is to pull off a strip of cotton maybe to a thickness of 2 X the diameter of the coil (maybe a little more or less as I've never actually measured it). I fluff it out a little and then compress it by rolling the wick without twisting it. I feed the pointy end through the coil and pull it through from the pointy end and push and compress the trailing end. However, I do notice a definite resistance as I feed the wick through the coil as opposed to some of the other posts I've read in other forum threads.

Unfortunately, this is not as easily the same repeatable process as actually making the coil itself. And the wick building is somewhat more of a 'feel' thing. But through trial and error and your mental notes, it becomes easier and easier as you go along.

Good luck!

I think YMMV applies best to cotton than any other material but the results are hard to compare when you do. Vaping it now on a right true Trident and M16 with a hot AW 18490. Same coil I describe above on a light wick and expanded fluffed tail I curl under as a cloud. It is killer now that it's had a day to cure. If I could've done the same with a KPT I probably would've gone no further. No fun though. I'm still eyeing the challenge of those vertical coils. But for your amusement a build from my target list…

TWISTED BUNNIES: Vertical Quad Coil Build at .20

A very good tip on using knitting needle as a bit to form twisted-pair wire on a drill!

Good luck!