Protank MicroCoil Discussion!!

[vdaedalus]

Glossed over the swordfight.

Where I'm at now is 28 gauge, 12 wraps, 1/16", 1.3ohm, cotton. Filling -- and thus heating -- a wider section of the coil head (bit of a tight fit for these fingers, but you can finagle it), MUCH more efficient vape, better flavour, better vapour.

 

[beckdg]

Glossed over the swordfight.

Where I'm at now is 28 gauge, 12 wraps, 1/16", 1.3ohm, cotton. Filling -- and thus heating -- a wider section of the coil head (bit of a tight fit for these fingers, but you can finagle it), MUCH more efficient vape, better flavour, better vapour.

welcome to satisfaction. now be careful driving at night. white clouds aren't good for seeing through when headlights shine on you.

 

[M_DuBb716]

Hey guys, I've been slacking on this thread. Tried the Vertical/Hollow microcoil in my protank with mediocre results, so I'm back!!
.. I will catch up and read EVERYTHING I missed ASAP!! By the way, that twisted Kanthal has really been catching my interest - it seems it would be cotton's best friend! I'll have to try that

But, I digress.. (lol) I'm currently wrapping some 30g K on a bit that slightly larger than my 1/16" (1.5875mm) bit.. It's actually my juice syringe that I wrapped on and the micro came out near perfect before any burning or squeezing!! I'm guessing that the needle I wrapped on was about 1.7mm, it's wrapped 12 times now but I might unwrap one before I install it.
......... Shooting for about 1.8-2 ohms.. Hoping for a great vape since I haven't had one in the past couple days, with the Vertical/Hollow-Micro

 

[vdaedalus]

welcome to satisfaction. now be careful driving at night. white clouds aren't good for seeing through when headlights shine on you.

Haha, I'm not about the clouds, just looking for maximum flavour/satisfaction at this point, and tonight these 28AWG builds are where I'm going. The plan right now is to re-wrap all of my heads as they expire with this 28-gauge rebuild. An illustration follows, I ended up pulling the wick and compressing/straightening the coil further (these macro shots are so unforgiving, and those last few wraps looked kind of awful), but it worked just fine for several hours before the itch caught. 30AWG on the left, 1.5-1.6ohm, 28AWG on the right, 1.3-1.4ohm. Both on a 1/16" bit, shaky hands. To my mind, the 28AWG offers a greater heating surface at a lower voltage, tons of flavour, plenty of vapour. And at 1.3ohms, they'll still fire on any of the VW mods I have at my disposal.

 

[beckdg]

i'm in it for satisfaction, too. but it is a bit of a surprise in oncoming traffic. smoke didn't have that effect.

found my sons camera. suffice it to say, i won't be attempting macro shots with that thing again. today's bounty...

28Ga
12/13 wrap
5/64" +/-
2.0Ω

 

[M_DuBb716]

Very nice microcoils, guys!! vdaedalus, that one on the right is a real beauty!! I bet they vape both great.
beckdg, that is an excellent looking coil! I'd love to vape on that
.... You guys are really making me want to try a 28g build - that's definitely a plan in my near future. I just need to get some more 28g!! I bought some a few weeks ago, but I seem to have lost it; I never even got to use any of it hah.. Luckily it was only about 50cents worth of wire that I lost

I am very pleased with the micro I built last night. I did 10/9 wraps of 30g, on about a 1.7mm bit, coming in at 2.1Ω.
.... I took pics, it was one of my nicest micro builds yet. Lots of vapor, but it seems that all of my micros have been lacking in flavor lately. I stopped using flavor-wicks and that may have helped a bit, but I knew it wasn't just me when I tried building a couple Vertical/Hollow-Micros.. My vertical/hollow coil was a sloppy build and didn't deliver much vapor, but it gave me the intense, deap flavor from my juice that I've been missing for awhile now

I don't know if I'm not wicking my coils properly (with 100% Organic Cotton) or what it is.. But I need that intense flavor back!

 

[MacTechVpr]

Haha, I'm not about the clouds, just looking for maximum flavour/satisfaction at this point, and tonight these 28AWG builds are where I'm going. The plan right now is to re-wrap all of my heads as they expire with this 28-gauge rebuild. An illustration follows, I ended up pulling the wick and compressing/straightening the coil further (these macro shots are so unforgiving, and those last few wraps looked kind of awful), but it worked just fine for several hours before the itch caught. 30AWG on the left, 1.5-1.6ohm, 28AWG on the right, 1.3-1.4ohm. Both on a 1/16" bit, shaky hands. To my mind, the 28AWG offers a greater heating surface at a lower voltage, tons of flavour, plenty of vapour. And at 1.3ohms, they'll still fire on any of the VW mods I have at my disposal.

Thanks for the pics! Very nice winds.

Your 30g on 1/16" @ 1.5-6Ω appears to be right on the money. I recorded a max tight (non-torsion) wind on that of…

30AWG, 7/6 1.58mm i.d. (XC-132), microcoil = 1.57Ω √

I stopped logging at 10 wraps at the time v as I was still using silica, and it could just not keep up.

I recorded your result with cotton though…

28AWG, 12/11, 1/16-1.58mm i.d., m.c. = 1.3Ω

with a question. My tightest attainable wind on 2mm with 28G produced 1.7Ω.

How did the latter wind produce v?

 

[vdaedalus]

.... You guys are really making me want to try a 28g build - that's definitely a plan in my near future.

Dooooo it. The extra surface really helps. It's definitely a tighter fit, I think the most I could fit in is 13 winds before it would short on either side of the head. But at 12 wraps I'm getting 1.4, reproducible, easy to wick. Tomorrow I might try some on a 5/64 bit with one or two fewer winds and see where that puts me, resistance wise. I wouldn't mind a bit of a bigger 'hose' delivering juice.

Thanks for the pics! Very nice winds.

Thanks. The one on the left looks ghastly to me, but I'm still using the one on the right today, after a rewick.

28AWG, 12/11, 1/16-1.58mm i.d., m.c. = 1.3Ω

with a question. My tightest attainable wind on 2mm with 28G produced 1.7Ω.

How did the latter wind produce v?

Confused about the 2mm part of your tightest wind report, can you clarify? On a 2mm bit? Because that sounds about right, that's a bit more wire. I wrapped four with 28AWG tonight, 12/11, 1/16", metering at 1.4ohm on a VAMO (the person I ordered my ohm meter from still hasn't taken it to the post office, it's a bummer). Oh, and one when I wasn't paying attention and wrapped eleven, barely hitting 1.2.

 

[MacTechVpr]

Dooooo it. The extra surface really helps. It's definitely a tighter fit, I think the most I could fit in is 13 winds before it would short on either side of the head. But at 12 wraps I'm getting 1.4, reproducible, easy to wick. Tomorrow I might try some on a 5/64 bit with one or two fewer winds and see where that puts me, resistance wise. I wouldn't mind a bit of a bigger 'hose' delivering juice.



Thanks. The one on the left looks ghastly to me, but I'm still using the one on the right today, after a rewick.



Confused about the 2mm part of your tightest wind report, can you clarify? On a 2mm bit? Because that sounds about right, that's a bit more wire. I wrapped four with 28AWG tonight, 12/11, 1/16", metering at 1.4ohm on a VAMO (the person I ordered my ohm meter from still hasn't taken it to the post office, it's a bummer). Oh, and one when I wasn't paying attention and wrapped eleven, barely hitting 1.2.

Damn that's bad news. If your performance is holding up, you're prob dead on. I was not winding as tight back then when using silica. I was basically using a thinner screwdriver as a guide to "form" (as IBM used to call bending the crap out of things) the coil down into the slot, bending the legs of course. I definitely was introducing more wire than necessary at the time as well. But I thought I had started to slot lower by the time I got to XC-132 and 10-winds. I will have to revisit this. I was counting on those high resistance returns. I've got an original Trident and Helios begging to be dual-coiled and If I was that high, and values are lower, I'm in trouble when I start using shorter leg coils in RDA's. Yikes!

Here's the summary table of my results which comprised several dozen builds…

28AWG, 10/9, 2mm i.d. (XC-132), m.c.= 1.7Ω
28AWG, 10/9, 2mm i.d. (0/1 Cotton Sq. Braid), m.c.= 1.64Ω
28AWG, 10/9, 2mm i.d. (2.5mm Silica), microcoil= 1.62Ω
28AWG, 9/8, 2mm i.d. (2.5mm Silica), microcoil= 1.49Ω
28AWG, 8/7 2mm i.d. (2.5mm Silica), microcoil= 1.3Ω

Perhaps there is that significant a difference between a sixteenth and 2mm across that many turns as well. Too tired to do the math tonight.

Wish me luck! I'll be sure and LYK. Redundant ohmmeters enroute.

 

[MacTechVpr]

...I think the most I could fit in is 13 winds before it would short on either side of the head.

BTW, good observation (I think Rip T reported 12 as reliable).

 

[beckdg]

Very nice microcoils, guys!! vdaedalus, that one on the right is a real beauty!! I bet they vape both great.
beckdg, that is an excellent looking coil! I'd love to vape on that
.... You guys are really making me want to try a 28g build - that's definitely a plan in my near future. I just need to get some more 28g!! I bought some a few weeks ago, but I seem to have lost it; I never even got to use any of it hah.. Luckily it was only about 50cents worth of wire that I lost

I am very pleased with the micro I built last night. I did 10/9 wraps of 30g, on about a 1.7mm bit, coming in at 2.1Ω.
.... I took pics, it was one of my nicest micro builds yet. Lots of vapor, but it seems that all of my micros have been lacking in flavor lately. I stopped using flavor-wicks and that may have helped a bit, but I knew it wasn't just me when I tried building a couple Vertical/Hollow-Micros.. My vertical/hollow coil was a sloppy build and didn't deliver much vapor, but it gave me the intense, deap flavor from my juice that I've been missing for awhile now

I don't know if I'm not wicking my coils properly (with 100% Organic Cotton) or what it is.. But I need that intense flavor back!

thank you, sir.

could be that your cotton is threaded too tight or you're not wicked well enough before your first burn.

i say do it. each build has it's own nuances. worst case scenario, you waste ~$5 on kanthal you don't use for a while. best case scenario, you get that flavor intensity you're looking for.

 

[M_DuBb716]

Gonna try another build tonight, hoping for better flavor and thicker vapor.. Flavor is my #1 though!

I grabbed some 28g today, so I think I'll try maybe 12 wraps of 28g on my needle that is slightly larger than 1/16" (around 1.7-8mm).. Really hoping for more intense flavor.

By the way, I would love if anybody felt the need to make my life easier by building me that coil-winding Jig and mailing it to me!! Hehe

 

[vdaedalus]

This one's a keeper. Nice and tight, all coils touching (even the ever-pesky first and last ones) and no slant to the coil (although reflections on the kanthal may make it look otherwise), good job, vdaedalus.

 

[M_DuBb716]

I'm just worried that with 28g, the resistance will come out too low for my eVic.. I usually like around 1.8ohm and vape around 6.5-7watts. Maybe I should try to squeeze 13 wraps instead of 12, I think I've pulled that off before.

... I'm just trying to find the setup that gives me maximum flavor intensity, and the thickest (& most) vapor. Off to rebuild now!

 

[Flavored]

12 wraps of 28 was a pistol to fit into the head, put a wick in, and get the chimney back in place without touching/shorting. I did it. Wasn't worth it.

 

[Whiplash205]

Gonna try another build tonight, hoping for better flavor and thicker vapor.. Flavor is my #1 though!

I grabbed some 28g today, so I think I'll try maybe 12 wraps of 28g on my needle that is slightly larger than 1/16" (around 1.7-8mm).. Really hoping for more intense flavor.

By the way, I would love if anybody felt the need to make my life easier by building me that coil-winding Jig and mailing it to me!! Hehe

You might pm darkzero about one of his jigs. I got one and love it. There are shots of it over on the general microcoil thread.

Sent from my EVO using Tapatalk

 

[M_DuBb716]

I'm still gonna try it out now, on about a 1.7-1.8mm needle, hehe

Thanks for replying with your results though, Flavored. I appreciate the quick reply

 

[M_DuBb716]

I'm just worried that with 28g, the resistance will come out too low for my eVic.. I usually like around 1.8ohm and vape around 6.5-7watts. Maybe I should try to squeeze 13 wraps instead of 12, I think I've pulled that off before.

... I'm just trying to find the setup that gives me maximum flavor intensity, and the thickest (& most) vapor. Off to rebuild now!

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

 

[vdaedalus]

The one I posted was 12, and there's definitely room in there for another, but it'd have to be perfect. I've had a few coils mysteriously expand over use, even after multiple torches, compression, pulse, compression, before ever wicking them; in which case I worry a 13 would short out on the side.

I tend to fire these 1.4-1.5ohm 28AWG coils at 8.5-9.0 watts, with one exception where the juice demands 11W for maximum flavour. This is almost always on a VAMO or an eVic -- they'll go as low as 1.2ohm before they won't fire.

Edit: looking forward to hearing about your result!
Edit the second: oh yeah, the stem/chimney is going to short on the 13-wrap, I almost guarantee it.

 

[vdaedalus]

Actually I think you could get 13 in without the stem being a problem. Just to check, I slid my 1/16" bit back into my coil (please excuse the scorched painter's tape I covered the drill bit's threads with, it beats shredding my fingertips), to see that it was perfectly bottomed out against the plate. It will have to be, because check out how much clearance you get. It's not much at all. But it can be done.