Suggestions on dual coil builds?

[Land0Calrissian]

Finally rocking a dual coil rebuildable atomizer and man is it cloudy! Any suggestions on builds to try?
Right now I have 3 coils on each wick.
Mech: magneto. Battery: sony 18650, 30a. rba: igow4
Oh yeah right now I have 28 gauge kanthal and 3mm German wick.
(Also if anyone has some good sites they want to share, to buy rebuildable supplies that's be awesome too)

 

[emus]

Rip Trippers

 

[happydave]

try using twisted kanthal http://www.e-cigarette-forum.com/fo...cussion/498945-my-build-ego-octopus-mini.html
there is a short description in this thread ^ on how to twist the kanthal. may take some practice but its worth it. when you twist it your increasing surface area and decreasing resistance. so you are able to get more wraps on the wick and have the same resistance as if you used normal kanthal.

i use http://lightning-vapes.myshopify.com/
good stuff at a really good price..

 

[emus]

+1 on twisted.
Twisted 30GA kanthal is my favorite.

 

[ibhanky]

rip trippers for the win. he has some awesome dual coil builds on his youtube channel.

 

[seedeeze]

try using twisted kanthal http://www.e-cigarette-forum.com/fo...cussion/498945-my-build-ego-octopus-mini.html
there is a short description in this thread ^ on how to twist the kanthal. may take some practice but its worth it. when you twist it your increasing surface area and decreasing resistance. so you are able to get more wraps on the wick and have the same resistance as if you used normal kanthal.

i use http://lightning-vapes.myshopify.com/
good stuff at a really good price..

+1 on twisted.
Twisted 30GA kanthal is my favorite.

Forgive my noobness but wouldn't using a thicker guage kanthal do the same thing minus the effort of twisting? Also, if surface area is so important, why not make a flat spiral coil and lay it on a bed of cotton, wouldn't that give the most surface area?

Inquiring mind wants to know.

 

[numbskull]

Yup, Rip's got it on lock when it comes to rebuilding. I love me some dual micro coils. Also a fan of ribbon wire and Ekowool.

+1 for lightningvapes
I have also used temco

lastly, KidneyPuncher is great because you can get small amounts of different gauge wire to try out and they have a lot of other useful accessories for rebuilding and DIY'ing

Haven't tried twisted wire yet but my Lightning Vapes package should be here on monday, can't wait to try it out!

 

[happydave]

Forgive my noobness but wouldn't using a thicker guage kanthal do the same thing minus the effort of twisting? Also, if surface area is so important, why not make a flat spiral coil and lay it on a bed of cotton, wouldn't that give the most surface area?

Inquiring mind wants to know.

when twisted the area is tremendously increased, after its twisted it should feel like a row of tiny beads. things that are curved have more surface area than thing that are flat. this is the reason why some of the most popular / effective swords in history have curved blades (more cutting edge / surface area) with out an increase in over all length. so what you have is row of tiny balls that get hot and vaporizer the liquid then you have spots between the balls that allow the vapor to flow out. you would think that 2 wires twisted together would cut the resistance in half vs one normal wire. but this is not the case i find it only drops about .25 ohms per inch but it is noticeable. for example if your normal wire is 1 ohm per inch and then you twist it, the twisted pair is now .75 ohms.


not sure what you mean with "flat spiral coil"..

 

[emus]

Save your face and study batt safety.

My all time favorite; the UD IGO-F with 3/32" ID twisted 30GA kanthal at 1.2 ohms on IMR 18350 or 18650:

One of my favorite cloud machines with twisted 30GA and Samsung INR-18650-20R:

:

 

[happydave]

Save your face and study batt safety.

My all time favorite; the UD IGO-F with 3/32" ID twisted 30GA kanthal at 1.2 ohms on IMR 18350 or 18650:

One of my favorite cloud machines with twisted 30GA and Samsung INR-18650-20R:

:

that works well? im surprised. that wire is hardly twisted... hmmm something new to try now

 

[happydave]

this is what i use, this is 30 gauge twisted until the metal fatigues and snaps off (at end before it goes into the jaws of the pliers)

 

[seedeeze]

when twisted the area is tremendously increased, after its twisted it should feel like a row of tiny beads. things that are curved have more surface area than thing that are flat. this is the reason why some of the most popular / effective swords in history have curved blades (more cutting edge / surface area) with out an increase in over all length. so what you have is row of tiny balls that get hot and vaporizer the liquid then you have spots between the balls that allow the vapor to flow out. you would think that 2 wires twisted together would cut the resistance in half vs one normal wire. but this is not the case i find it only drops about .25 ohms per inch but it is noticeable. for example if your normal wire is 1 ohm per inch and then you twist it, the twisted pair is now .75 ohms.

not sure what you mean with "flat spiral coil"..

Ah! so essentially the coil itself is acting like a wick, that makes sense. What's the thinnest kanthal around? Someone make a kanthal rope already!

I think because twisting wires means each wire is wrapped around the other, you are probably using 50% more length to achieve a certain length, so if you're twisting two wires together, I think each one would start out being 1.5" to achieve a 1" twisted wire.

Now that I understand how twisting wires is better forget what I said about the spiral.

 

[happydave]

Ah! so essentially the coil itself is acting like a wick, that makes sense. What's the thinnest kanthal around? Someone make a kanthal rope already!

I think because twisting wires means each wire is wrapped around the other, you are probably using 50% more length to achieve a certain length, so if you're twisting two wires together, I think each one would start out being 1.5" to achieve a 1" twisted wire.

Now that I understand how twisting wires is better forget what I said about the spiral.

24 inchs of normal wire turns out about 8-10 inchs twisted depending on gauge.

 

[emus]

that works well? im surprised. that wire is hardly twisted... hmmm something new to try now

Works fantastic IMO.

I wind little under 10 foot length of twisted wire with drill till it looks tight and non-kinky. Takes 20 ft of single strand to make.

Resistance: 1.2 ohms = 2/32" ID, 8 wraps. 1.3 ohms = 1/16" ID, 12 wraps.

Twisted coil stays wet better than single strand; less dry burn risk.

How much resistance per coils do others get?

 

[dripdaze]

Hey Land0Calrissian, If you are just looking for something to try in your builds, you could try nichrome instead of kanthal. Some people prefer it. There is a stickied thread discussing the merits of using one or the other over on the rebuildable forum.

 

[happydave]

Works fantastic IMO.

I wind little under 10 foot length of twisted wire with drill till it looks tight and non-kinky. Takes 20 ft of single strand to make.

Resistance: 1.2 ohms = 2/32" ID, 8 wraps. 1.3 ohms = 1/16" ID, 12 wraps.

Twisted coil stays wet better than single strand; less dry burn risk.

How much resistance per coils do others get?

with my method,
.28 gauge kanthal 1.1 ohms per 2.5 inchs
.32 gauge kanthal 2.4 ohms per 2.5 inchs

so for example with .30 gauge twisted i can use 2 strands of 2 mm wick and a 3/4 wrap and that will make a .8 - 1.0 ohm coil. (this is my current all day vape setup)

 

[emus]

with my method,
.28 gauge kanthal 1.1 ohms per 2.5 inchs
.32 gauge kanthal 2.4 ohms per 2.5 inchs

so for example with .30 gauge twisted i can use 2 strands of 2 mm wick and a 3/4 wrap and that will make a .8 - 1.0 ohm coil. (this is my current all day vape setup)

So your a twisted 30GA fan like me.

Looks like your 30GA is twisted about twice as much as mine. My twisted 30GA is close to 28GA single strand but yours is closer to a much thicker gauge. Maybe 26GA or 24GA?

I didn't notice you could twist different tightness so simulate 28GA, 26GA, etc.; cool.

 

[happydave]

.28 gauge is .31 mm O.D.
my twisted .30 is .45 mm O.D.

 

[Land0Calrissian]

It looks like from above suggestions twisted coils is the next frontier


Sent from my iPhone using Tapatalk

 

[Asbestos4004]

If you like twisted...try .28 twisted with .30. Also 3 strands of .30 twisted together really tight works great. I generally build micro coils with it. Love it.