HELP - Not getting the hellacious vapor using cotton and microcoil

[mrmack00]

So I built my first microcoil-ish on a V3 Fogger and Provari, using 28 gauge kanthal and cotton. I had a hell of a time getting the coil attached to the posts, making sure things were touching. The ohms read at 2.1, then 2.0. It seems to be holding steady at 2.0. I fired it and didn't get any errors, so I slid the cotton through, reassembled that bad boy and started vaping.

It vapes, but I'm not getting anywhere NEAR the vapor I'm seeing from youtube videos. I thought maybe my juice, about 70-30 pg/vg, but it seems like I got more vapor using the SS mesh wick, which is weird. Using the same juice and a carto, the vapor production is comparable.

Can someone provide some insight here? If I'm getting no errors and 2 ohms, shouldn't I be Able to crank the Provari up to 4.4 and get more vapor than I would with a carto or mesh wick?

 

[mrmack00]

I just looked at the coils and cotton, while firing and I'm not getting the glow at all. Not sure if that's because there is cotton in there or not, but I imagine that shouldn't have anything to do with it. It's firing, but the coils aren't glowing at all, even at 4.7 volts...

 

[mullet]

If you're firing with it juiced, you shouldn't see anything glowing, it would be bad if you did. If you're firing with cotton but no juice, stop.

With micros and cotton it is usually easier/better to help figure out a problem if you could provide a pic of you wick/coil.

 

[Bosco]

To get big "youtube clouds" you need to have lots of air flow and take a lung hit instead of a mouth hit. I have a 2.2ohm micro-coil w/cotton wick in my Kayfun lite + set with airflow at about 80% and Kick2 at 15watts. It definitely does not make Youtube clouds but it's probably about a third more vapor than an evod or protank. If I lung hit it . .it would be a lot closer to a youtube cloud . .and I'd cough my brains out and go into nicotine spasm, lol. BUT . .if I set up the my Kayfun coil at .8ohms, open the airflow all the way and go down to 8mg nic juice and take a big lung rip .. then I could make pretty convincing Youtube clouds.

 

[Cr0tchF4i]

Remove a coil- get a little lower ohm. How much cotton are you putting in there? Shouldn't be packed in.

Also, place the coil on the posts with the jig still in it so it stays nice and together. remove the jig. fire until it all turns red, let off the button and squeeze the coil with needle nose or tweezers until it cools and it will remain tightly together. Then fire and make sure it lights up from the inside out. Once it does this you're in good shape. Wick it lightly and put a few drops on there. good to go.

Yes, the PG/VG makes a big difference in density of the clouds.

 

[mrmack00]

OK tried removing some cotton. Works a little better. My coil may have gotten messed up while installing the coil because it was so difficult. I don't think I can leave the little drill bit in while installing because the gap in the fogger is so small

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[mrmack00]

Here's a pic of the first coil and first cotton

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[mrmack00]

Maybe the coil is too big? I used the jewelry screwdriver that said 30mm, with 8-10 wraps I think

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[mullet]

Are you sure it didn't say 3.0mm? 30mm would be over an inch in diameter. Even at 3.0mm, that's about twice as wide as you want for a microcoil.

 

[alkaiser]

yeah should be much smaller with less cotton. 2 ohms is kind of high as well. maybe drop that down to about 1.2-1.5ish

the last few days, i've been using a dual coil .6 ohm with cotton on my omega rda and getting more clouds than ever. but, .6 ohms is pretty low and I wouldn't do it without gradually working yourself down. can provaris fire subohm?

 

[Jonathan Tittle]

For a microcoil, I've found it's best to use a 1/16" drill bit or allan key. As for getting the coils together, the tighter you wrap it before you do the install, the easier it'll be to use a pair of tweezers to compress it further.

At 30mm, that's a rather large microcoil. If you're looking to stay in the 2-2.1Ω range, you'd probably be better off with 30g instead of 28g as 28, IMO, is better for low Ω coils, whether micro or otherwise.

 

[mrmack00]

As I understand, Provari's don't work well sub-ohm. Maybe I can go to 1.3 or something. And yes, I meant 3.0, not 30mm. So even the 3.0 is too big, then? I have a 1/16 drill bit to wrap. Would that work? It seems like it'd be way too small to fit any amount of cotton through and the cotton I do get through won't be enough to keep it from flooding.

 

[mrmack00]

For a microcoil, I've found it's best to use a 1/16" drill bit or allan key. As for getting the coils together, the tighter you wrap it before you do the install, the easier it'll be to use a pair of tweezers to compress it further.

At 30mm, that's a rather large microcoil. If you're looking to stay in the 2-2.1Ω range, you'd probably be better off with 30g instead of 28g as 28, IMO, is better for low Ω coils, whether micro or otherwise.

Didn't see this - I have the 1/16, but it just seems like it will be tough to get the cotton through and have enough to prevent it from flooding. I will try, though.

 

[alkaiser]

twist up a little bit of cotton until it's thin as a string. thread the cotton through the hole (it should slide in easy). once it is in place, untwist the cotton to fluff it up a bit. good thing about cotton is that you really don't need much at all

 

[mrmack00]

I'll try that tonight I think. Off subject but Any recommendation on a solid mechanical clone? I'd like to try sub ohm on the rba

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[alkaiser]

nemesis clones are hard to beat for function/price.

 

[Jonathan Tittle]

I'll try that tonight I think. Off subject but Any recommendation on a solid mechanical clone? I'd like to try sub ohm on the rba

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Grab a HCigar Nemesis Clone. I'm vaping on one right now and it's a solid device. You can go through FastTech and wait a few weeks or a month or so (since Christmas is near - shipping is going to be backed up), or grab one from a vendor for $40-$50. It's hands down one of the absolute best mods I have in my arsenal and I take it pretty much everywhere I go.

That said, please, please, please, if you haven't already, read up on battery safety and use the ohms law calculator to get your resistance correct. The difference between a mech and VV/VW is that nothing controls it, so there's no auto-safety; i.e. you're on your own. If you fire a short and keep firing it, you have potential to blow the battery.

Ohm's Law Calculator

Use 4.2 & 3.7 as the voltage and then enter your desired resistance for ohms and hit calculate. I'd also recommend the batteries below for mechs - I have 2 and more on the way because they are great batteries. One battery lasts me all day long, but I keep another on hand for the days where I vape heavier.

Sony 18650VTC4 2000MAH 30AMP Battery - Eciggity

Edit: Also make sure you have a way of checking ohms. On a mech, you really don't want to rely on your VV/VW device to check resistance. Get a volt meter or grab one of the box mods specifically designed to check resistance for atty's. With a mech, there's no room for guessing resistance.

 

[Exile]

If you're looking to stay in the 2-2.1Ω range, you'd probably be better off with 30g instead of 28g as 28, IMO, is better for low Ω coils, whether micro or otherwise.

^ what he said! ^

Try some 30g kanthal. 30g kanthal works best for 1-2Ω coils. I have found that 28g kanthal doesnt work well with coils over 1Ω.

For mechanical mods sub-ohming under 1Ω coils I like to use 28g kanthal.

For vv mods I like to build coils as low Ω as the mod will fire (1.2Ω), which I then like to use 30g kanthal.

 

[mrmack00]

Thanks! I've seen the name nemesis pop up a few times. I've also heard battery safety is a concern when doing sub ohm.... I'll check into that next

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[mrmack00]

What is the concern with low ohm though. If I'm going 3.7 volts with. 7 ohms that's like 19 watts right? Is there a certain limit I need to be aware of?

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