the "science" behind different coils

[plewm]

i'm looking to learn about the factors that affect different coil builds. off the top of my head i'm wondering about: air flow - under the coil vs directly hitting the coil, combining different wire materials like kanthal and nichrome to get the best of both,

are there any resources besides youtube out there? i don't know if i can handle another video where people just share their personal preferences.

also are there any real advantages to the intricate types of coils (like tiger or clapton and all of that) or is it just for hobbyists?

 

[State O' Flux]

Unless you have a method, fixture and gauges for consistently measuring air flow in inches of water, you're going to have difficulty comparing objectively. You can go by the number and size of air inlets and outlets... do the math with a constant and arrive at a value... but then that value is only as accurate and useful to others as the individual testers lung capacity.

As to science... take a bit of time for reading, then click on the first sigline hyperlink below, and begin.

 

[edyle]

i'm looking to learn about the factors that affect different coil builds. off the top of my head i'm wondering about: air flow - under the coil vs directly hitting the coil, combining different wire materials like kanthal and nichrome to get the best of both,

are there any resources besides youtube out there? i don't know if i can handle another video where people just share their personal preferences.

also are there any real advantages to the intricate types of coils (like tiger or clapton and all of that) or is it just for hobbyists?

claptons has a high ratio of hot metal surface area.

mesh wick also increases the amount of hot metal surface area.

 

[Nikea Tiber]

Overall resistance, coil mass, coil surface area, airflow, and the overall efficacy of your wick are the main variables to consider when observing what is going on in your atty and building to get a vape you like at a given power level.
Before you consider the first two variables (overall mass + resistance) you need to decide what you will be using as a power supply for both safety and because a high mass coil will have ramp time issues on a low wattage device (or if of sufficient resistance to pull low wattage on a mech).
Experiment. One of the simplest you can do is wire a single parallel coil, use it on an atty that has a good single coil airflow option, vape it like that for a while, then switch to a dual coil setup at the same resistance and wire size. This doubles the available wick + airflow vs coil mass and surface area.

 

[Izan]

i'm looking to learn about the factors that affect different coil builds. off the top of my head i'm wondering about: air flow - under the coil vs directly hitting the coil, combining different wire materials like kanthal and nichrome to get the best of both,

are there any resources besides youtube out there? i don't know if i can handle another video where people just share their personal preferences.

also are there any real advantages to the intricate types of coils (like tiger or clapton and all of that) or is it just for hobbyists?

Wolfram|Alpha: Computational Knowledge Engine

 

[Nikea Tiber]

Its a momentous era to be standing on the shoulders of giants.

 

[Tom Forde]

Fancy builds are more fun and taste better.

But all of that of course is subjective to the builder and vaper using said fancy coils.​

Let me bring up the 3 parallel core Alien coil, because it is all the rage right now.

Above coil is a 3x 26g N80 core with a 34g N80 wrap.​

As for airflow, it doesn't really matter where it's coming from, as long as it's hitting the coil & cooling it down. When you break down this coil, what exactly is it? It is 3 wires in parallel with a decored Clapton wrapped around them. The above coils at 6 wraps on a 2.5mm bit clocked in just around .25Ω EACH, significantly less ohms than a standard 6 wrap N80 2.5mm single strand coil. The heat and vapor production (when run safely - this applies to every build) is greater than a regular N80 coil. It covers a larger surface area and can hold juice in between the grooves of the wrap & in the grooves of the parallel wires. The amount of wire used increases the surface area, yet because they are parallel, not so much of the wire density. The ramp up time is pretty quick because the 3 cores are parallel to eachother.
Now N80 vs KA1 is a different topic, N80 holds a lower resistance per gauge than KA1 & has a quicker ramp time. It also is a softer metal, making it easier to manipulate and bend, but also easier to mess up with higher gauges. You also have your 316 Stainless Steel wire & SS wire blends. Rugged Wires for example is a super stiff stainless steel blend wire that carries a resistance of about half of KA1 per gauge & heats up super quickly.
@plewm - if you want to find out if there are advantages (to you, again this is all subjective to the vaper) to Claptons vs single strand coils, message me and I can give you a pair to try out

 

[Nick83]

Fancy builds are more fun and taste better.

But all of that of course is subjective to the builder and vaper using said fancy coils.​

Let me bring up the 3 parallel core Alien coil, because it is all the rage right now.
View attachment 488255

Above coil is a 3x 26g N80 core with a 34g N80 wrap.​

As for airflow, it doesn't really matter where it's coming from, as long as it's hitting the coil & cooling it down. When you break down this coil, what exactly is it? It is 3 wires in parallel with a decored Clapton wrapped around them. The above coils at 6 wraps on a 2.5mm bit clocked in just around .25Ω EACH, significantly less ohms than a standard 6 wrap N80 2.5mm single strand coil. The heat and vapor production (when run safely - this applies to every build) is greater than a regular N80 coil. It covers a larger surface area and can hold juice in between the grooves of the wrap & in the grooves of the parallel wires. The amount of wire used increases the surface area, yet because they are parallel, not so much of the wire density. The ramp up time is pretty quick because the 3 cores are parallel to eachother.
Now N80 vs KA1 is a different topic, N80 holds a lower resistance per gauge than KA1 & has a quicker ramp time. It also is a softer metal, making it easier to manipulate and bend, but also easier to mess up with higher gauges. You also have your 316 Stainless Steel wire & SS wire blends. Rugged Wires for example is a super stiff stainless steel blend wire that carries a resistance of about half of KA1 per gauge & heats up super quickly.
@plewm - if you want to find out if there are advantages (to you, again this is all subjective to the vaper) to Claptons vs single strand coils, message me and I can give you a pair to try out

That alien wire looks sick but I have enough trouble just trying to get a clapton and fused clapton right. As for that, I am trying to find a build that will give me awesome flavor. Any suggestions?

 

[Tom Forde]

That alien wire looks sick but I have enough trouble just trying to get a clapton and fused clapton right. As for that, I am trying to find a build that will give me awesome flavor. Any suggestions?

Just build a regular Clapton. Go slow with the drill and try to get a 5-6" length for one coil at a time. Try 24g or 26g with 32g. They're quite simple with short segments if you go slow. Or you could try a standard 3 loop vertebraid with 30g or 32g.

 

[Nick83]

Should I go with kanthal or nichrome 80?

 

[MacTechVpr]

You get vaporization by way of an effective contact area with the wick. The more efficient that you make that in relationship to air and juice flow the more conversion you get. More actual vapor vs. diffusion, more flavor. Simple formula.

Thirty seconds to an outstanding repeatable baseline vape.

Tehnsioned Contact Micro Coil, MacTechVpr

• MacTechVpr
• Jun 25, 2015
• coil contact tensioned

Everything else is fun. Meet ya there.

Good luck.

 

[sonicbomb]

Aiflow options are quite often the main thing that differentiates one atomizers from another. In terms of whats best, read a lot, watch a lot of videos and do a lot of builds and what is best for you should become apparent.

Characteristics of "flavor" attys | E-Cigarette Forum

 

[plewm]

Unless you have a method, fixture and gauges for consistently measuring air flow in inches of water, you're going to have difficulty comparing objectively. You can go by the number and size of air inlets and outlets... do the math with a constant and arrive at a value... but then that value is only as accurate and useful to others as the individual testers lung capacity.

As to science... take a bit of time for reading, then click on the first sigline hyperlink below, and begin.

great resources, thank you. "take a bit of time" sounds about right - will be totally worth it though

 

[plewm]

@Tom Forde - i appreciate it. i think i'm gonna keep it simple for now. also i don't know if i could handle anything below .5ohms.

@MacTechVpr - can you translate everything you said into english what's your method for the outstanding repeatable baseline? i'd really love to try it.

 

[MacTechVpr]

Sorry. Seems I might have lost ya with the word "efficient". And I'm not talking about a particular coil wind btw; rather, an attribute of wire in rebuilding which is always present and significant.

I came up with a simple method for beginners to make a repeatable coil in seconds using an ages old technique. By that I mean predictable resistance and everything that goes with that. The principle tool is nature but the approach has been used for coiling for prolly millennia. If you'd like to take a look Iv'e posted a few pages on the subject here…

Tensioned Micro Coils. The next step.
READYxWICK for non cotton people
Protank MicroCoil Discussion!!

You might try starting at the end. Pick up some important search terms like strain, tension, stress, pin vise, uniformity, oxidation, gaps, alumina, short, electron, etc. will get you a starting point and explanations. Strain is also unavoidable and an important asset in the build as well and discussed throughout.

Need extra help getting the first few started, tap me on the shoulder. Always a pleasure.

Good luck.