coils, coils, coils.

[munkeeboy2]

Hi all.
My first post so if its in the wrong place or anything I apologise lol.

Any way I have started making my own coils very recently but have a few questions...

Firstly I am not yet going down the sub-ohm road as I feel I need to walk before I run. (Also using a vamo so can't go under 1.2) I am using a plume veil clone and have been running it in single coil @ 1.4 ohms. Which leads to my first question: is it worth doing a dual coil at these ohms as I have read lots of conflicting opinions. What will be the benefits if any. I get really good vapour with my current setup.

Also how does coil diameter effect the vape experience/is there any difference in lots of little 2mm coils or less coils at 4mm.

And lastly wicking.... I must have watched 30 YouTube videos of different coils but not many people talk about wicking iv found keeping the area under and on top of the coil clear gives good vapouor but have seen people fold the wicks back under the coil, presumably for more wick to coil contact?

I appreciate that most of this is probably down to personal preference and I will learn with experience what works for me but any advise/feedback would be greatly appreciated.

Many thanks in advance.

PS if your in the UK have you tried Mrs Lord & co got the toffee apple a few days ago and its bloody lovely.

 

[VA Vince]

Coil Ohm's will take a while to figure out what you really like. I prefer a single 1ohm coil, thats just me. I do not think you need dual coils running 1.2-1.4ohms, but again, just my opinion. Diameter and surface area of a coil creates the resistance. Smaller diameter/size equals less resistance. Wicking, well that is all personal preference. I use organic cotton, haven't tried the Japanese cotton, rayon and will never try mesh. For wicking, it depends on which topper you are using.

Oh and that juice you mentioned sounds wonderful.

 

[IMFire3605]

1) On a regulated device like the Vamo, a single coil is sufficient as you have discovered. Reason being only one wire is being heated up so amp draw is lower, and less surface area to heat up at once, increasing battery efficiency. A dual coil will produce a bit more vapor and a lot more flavor, but your coils will need to be twice the amount of wraps per coil if you do them in parallel (2 sepperate wires), triple coils give the best flavor in my experience and opinion, while a quad coil will produce the most vapor, in any instance going more than 1 coil, the wraps will need to be more or you will have to use thinner wire to keep resistance up higher, dual coil = single coil resistance / 2, triple = single coil resistance / 3, eg to keep a 1.4 ohm as you have atm, for a dual coil the resistance per coil would need to be 2.8 ohms, 2.8 / 2 = 1.4.

2) Coil internal diameter (ID) sizes, this is a matter of preferrence, as well as what type of deck you are building on. A 1mm nano at 1.4 will produce the same vapor as a 2mm 1.4 or 3 mm 1.4, just as you go smaller, the more wraps will done, smaller ID coils also tend to run a bit hotter due to all the surface area they cover in a compact point compared to the 4mm. In my Kayfun and Russian class rebuildable tanks I tend to run 1/16th inch to 2mm nano and micro coils in then compared to my wider drippers I generally to 3mm macro coils in a center post raised off the deck alignment, see below on wicking.

3) Wicking does generally boil down to preference. Earlier when I started out building on Igo-W's and such I tucked my wicking underneath as I kept the coils level with the air flow holes to help insulate the deck from the coils to keep heat transfer down into the mod low. On my drippers anymore I use a raised, center post configuration, I use the wick to help direct my air flow, thus tuck the ends between the posts to touch the deck with the coils aligned directly in front of the center post, and raised up slightly above the air holes. This config in my preference blocks air to be directed where I want it to go around the coils, also gives my the most room between the coil and top cap/outer deck edge giving me the most air to coil contact as well as wick to coil surface contact and wicks very efficiently for my, even in my Mutation X which has a deep juice well, rest of the vapor production is produced above the coil with the remaining air that flows around the wicking in the vortexing at the top of the top cap.

 

[munkeeboy2]

Thanks for the reply. My only experience of dual coils is from the kanger pre mades which I was really happy with until I made my first single coil in a dripper and the flavour OH THE FLAVOUR! I was blown away. I didn't know what I was missing out on. Just don't want to miss out on what a dual coil can do now too.
Also I have tried rayon, my local vale shop gave me a small price to try and it was good but seeing as how new I am to rda's I didnt notice a big enough difference to to sway me either way.

 

[DaveSignal]

you might get faster wicking with a larger diameter, but for 1.4 ohm, you probably don't need it.

Often, room is left under the coil for sub-ohm builds where the coils get very hot very fast and need the airflow. On the plume veil, you have airflow through the negative posts behind the coil as well as airflow in front of the coil from the cyclops holes. I would just put the cotton through the coil and then tuck under the coil, leaving the back and front open for airflow from the negative posts and cyclops holes.

The coils are probably going to be way too big to heat up quickly enough for a good vape with 2 2.8 ohm coils. So I would stay in single-coil mode until you get a mech mod or higher power regulated box.

 

[Rwb1500]

To run dual coils you'll need two coils each with a resistance of 2.4 or higher to meet the limits of the Vamo. While it's not impossible it's simply just a pain in the ..... The higher the resistance the more space the coil takes up and pretty soon you're working with a crowded deck.

If you're getting good results out of a single coil I see no reason to do anything differently.

 

[munkeeboy2]

Wow you wrote all that while I was replying to the first reply ha ha. Good answer I have found that more coil exposed to the air gives me a cooler vape (probably less dense) which I seem to like without reducing flavour. Glad to hear dual coil will give more flavour I might just sit down a wrap one now..... I'll be back

 

[djsvapour]

Odd question, but here goes.

You are using a Plume Veil clone with a single coil?

How is it? Do you run it (the coil) from the side and miss out the 'nearest' terminal? (leaving a blank pair of terminals?)

I was thinking of trying this.... quicker than two and saves halving the resistance, which suits me.

 

[munkeeboy2]

So its seems a bit as I expected with the single vs dual because I am limited to 1.2 single coil would be more suitable. Would using thinner gauge wire help ie. 32 awg 5 wraps around a 3mm bit times 2(coiltoy comes out at 1.12 dual coil) would this heat up faster than the equivalent ohm using say 28 awg 2 x 10 wraps on 4mm bit???
Sorry if this is a silly question but I am still learning and thanks to every one for your replys its all really helpful

 

[munkeeboy2]

Odd question, but here goes.

You are using a Plume Veil clone with a single coil?

How is it? Do you run it (the coil) from the side and miss out the 'nearest' terminal? (leaving a blank pair of terminals?)

I was thinking of trying this.... quicker than two and saves halving the resistance, which suits me.

I'll try and post a pic. Bear with me while I figure out how lol.
And it is magnificent in single coil but its the only RDA iv ever used so my opinions might be a bit bias.

 

[djsvapour]

Sorry if this is a silly question but I am still learning and thanks to every one for your replys its all really helpful

Not silly, we help each other out.

Do you want to run it single or double? To run it double and not get into crazy space issues (thanks, Rwb1500), you could use thinner Kanthal. I mostly use 0.25mm for everything. I could grab some 0.2mm from the box to try at some point and report back??

 

[munkeeboy2]

I haven't done a dual coil yet but just trying to work out of its worth it reall. I only have 28 awg and 32(not sure how this converts to mm) but I am willing to give it a go with the 32 and see what happens. PS can't seem to figure out how to post a picture but maybe because I'm on my phone

 

[munkeeboy2]

Don't know how well you see it but this is it. 28 gauge 2.5 mm ID I am normally at around 12 watts and she vapes well. I get good clouds for me but probably nothing compared to those sub ohmers out there.

 

[DaveSignal]

The coil looks good. If you wanted, you could get at least another wrap in there at the same resistance if you used the other positive post hole and moved the coil more between the positive and negative posts. Many people do center-post builds like that, though, and it works great too! Remember you also have that airflow through the negative posts, which is cut off by dropping the cotton right there in between the posts. I am sure you get plenty of airflow for your current build already though.

A mech mod is a metal tube with a switch that makes a circuit with the battery and the atomizer. They all function pretty much the same, are unregulated, and will fire two of those 1.2 ohm coils at 30 watts. Much more if you go even lower. I would pick up a cheap clone and start building more coils! I don't think dual coils is going to work the way that you would hope with the Vamo, however.

 

[munkeeboy2]

Well just to update. The 32 gauge dual coil was poor. Most of you pretty much said it would be but I was hoping and had to find out for my self. I'll stick to my single coils for now but i feel i learned somthing. again thanks for all the advise guys.

 

[munkeeboy2]

The coil looks good. If you wanted, you could get at least another wrap in there at the same resistance if you used the other positive post hole and moved the coil more between the positive and negative posts. Many people do center-post builds like that, though, and it works great too! Remember you also have that airflow through the negative posts, which is cut off by dropping the cotton right there in between the posts. I am sure you get plenty of airflow for your current build already though.

A mech mod is a metal tube with a switch that makes a circuit with the battery and the atomizer. They all function pretty much the same, are unregulated, and will fire two of those 1.2 ohm coils at 30 watts. Much more if you go even lower. I would pick up a cheap clone and start building more coils! I don't think dual coils is going to work the way that you would hope with the Vamo, however.

I have actually ordered a nemesis clone and kayfun too so will be going down the mech road very soon just building me skill and knowledge with the benefit of a regulated(safer) mod. I did think about the extra wrap as there is a bit of wasted wire with those long legs. Also with the wicks I know you can't see it in the picture but the left negative post is blocked off but the one on the right has an "air channel" under the wick allowing air from the negative post behind the wick. I love the airflow options on the plume veil and the more I use it the more I like an airy draw (is AIRY a word?!?) Considering the coil in the PIC is only my 3rd ever I think its pretty good if I may say so myself. But that's all to do with this forum I have spent many an hour reading on here I have been vaping for about 2 years but only the last 2 months I've cut out the real cigs and I think that's all down to the vamo (for me 18650s last a day and a half) and the RDA as I previously said I was blown away by the flavour off this thing.