Diameter, wraps, surface, all that jazz

[Joe Vito]

So in another post, someone was mentioning that he could build a .2 dual coil that would be great around 30 watts, and then another .2 that would be great at around 70 watts. I’m just starting to build coils, and I know this has something to do with mass, surface, diameter, etc...Basically I’d like to learn this so I can target coils to match the watts I want to vape at. And with all due respect, please don’t say “start low and work your way up until you find the vape you like”...I’d rather not waste wire and I like to know the science behind these sorts of things.

Also on a similar yet side note, is there any premade coils I can purchase that tell you recommended watts to vape on it (like you know how coils you buy for tanks will have this)

Thanks all.

 

[Don29palms]

Unfortunately the only way to know is trial an error. Most of the I build for me anymoe are either rectangle wire nichrome 80 coils or ss316l fused claptons. They come out at .19ohms-.22ohms either way. I like my wattage set berween 60-70 watts. That's just me. That's the long answer. The quick answer is no.

 

[Joe Vito]

Unfortunately the only way to know is trial an error. Most of the I build for me anymoe are either rectangle wire nichrome 80 coils or ss316l fused claptons. They come out at .19ohms-.22ohms either way. I like my wattage set berween 60-70 watts. That's just me. That's the long answer. The quick answer is no.

Yeah I’m vaping a dual tiger coil .20 right now and I like it about 70 watts myself.

 

[Ralph_K]

For my amusement I made one single huge coil in my Pyro 24 RDTA wrapping around a screwdriver with flat clapton SS316L wire. 5 wraps came out to 0.29 ohms if I had to guess its 8mm id. I'm vaping it in TC mode at 60w

 

[stols001]

Well, there's a lot to it, and resistance isn't everything when building, mass matters as well. If you are getting into exotic builds, I'm afraid you are going to have to do some experimenting and see what works out well for you. Maybe buy a multi-pack of different types of premade coils, that might make your life a little easier as you try different builds and can start figuring out the types of resistance and wire/coil builds that work well for you. Of course, you could also get exotic wires and build your own, but starting with "wattage" and working backward is a bit awkward I'm afraid. Especially when it comes to exotic builds. You may also be surprised that you really like a particular build at a lower wattage than you thought. RTAs are just totally different animals if you ask me (I know you didn't ask me specifically) but they vape differently, and exotic builds can vape even more differently .

So yes, I'm kind of suggesting to start low and work your way up, with a bunch of different builds, it's the only way (that I know of) that you are going to find a "build" that you like.... at whatever wattage, etc.

Sorry.

Anna

 

[madstabber]

“start low and work your way up until you find the vape youlike”..

 

[Hightech Redneck]

So in another post, someone was mentioning that he could build a .2 dual coil that would be great around 30 watts, and then another .2 that would be great at around 70 watts. I’m just starting to build coils, and I know this has something to do with mass, surface, diameter, etc...Basically I’d like to learn this so I can target coils to match the watts I want to vape at. And with all due respect, please don’t say “start low and work your way up until you find the vape you like”...I’d rather not waste wire and I like to know the science behind these sorts of things.

Also on a similar yet side note, is there any premade coils I can purchase that tell you recommended watts to vape on it (like you know how coils you buy for tanks will have this)

Thanks all.

Another help would be to use steam engine.
If you have an android, download vape tool from the play store. You can put in what kind of coil, material, wraps etc... and will recommend wattage.

To try to put it simply though.
A ss standard round wire build at .2 will not require as much power to get hot.
The more wire you add as in Clapton, fused, alien or whatever, the more power required to get hot.

Many prefer Clapton or larger for more surface area, the drawback being more power needed. Unless you don't mind holding the button for 3 seconds so it can heat up before you vape.

Hope that helps a little.

 

[Joe Vito]

Another help would be to use steam engine.
If you have an android, download vape tool from the play store. You can put in what kind of coil, material, wraps etc... and will recommend wattage.

To try to put it simply though.
A ss standard round wire build at .2 will not require as much power to get hot.
The more wire you add as in Clapton, fused, alien or whatever, the more power required to get hot.

Many prefer Clapton or larger for more surface area, the drawback being more power needed. Unless you don't mind holding the button for 3 seconds so it can heat up before you vape.

Hope that helps a little.

That sounds great wish they had it for the iPhone

 

[Hightech Redneck]

That sounds great wish they had it for the iPhone

There is a version for iPhone but it doesn't have all of the same functionality. The app looks like this, and I think it is the same icon.

 

[Letitia]

AVS, Advanced Vape Supply, gives resistance for most of their coils. Don't pin/limit yourself with a specific wattage. You will miss out some tasty vapes. Learn what resistance you prefer for each coil type.

 

[ShamrockPat]

Another help would be to use steam engine.

Start on the coil wrapping tab. There are detailed explanations below the input fields on all tabs. Over on the right you'll see a field called 'Heat Flux'. If you input a known build you like you can use that value to simulate other builds to that same value. Many of those 'heat' values are also on the 'wire wrapping' tab lower down on the left side

 

[Joe Vito]

Thanks for all your help guys. I found the app on the iPhone that I think will be a big help. I’ve fooled around with steam engine but don’t quite understand how to use the heat flux

 

[sonicbomb]

Maximum surface area, minimum mass. Lots of wraps using 26 guage or thinner.

 

[Cas002]

Sonicbomb, stols001 and others who referenced mass are correct in that it will impact your vaping experience, in particular the ramp up/down time. If you are running a high mass build you will need more power to achieve the ideal coil temp in a reasonable amount of time. Ideally, you would maximize the surface area to mass ratio and have the mass within the appropriate range given your power constraints. If you want to vape in the 30-50W range, all other factors being equal (and there are several), shoot for less than 500 mg. Most exotics will be 1,000 mg + and you will likely need 80W or more to have a good experience.

Here is a area/mass table I created a few years ago when I first started building coils that helped me understand what I could do with my then 40W limit with eLeaf TC40s. It shows the mass, surface area, and ratio of the two across a number of different coil configurations including twisted and parallel cores. I hope it helps.

 

[mackman]

The heat flux in its most basic configuration: increase/decrease the heat flux number until the heat indicator at the left (flame icon) is the at your desired level and it will give you the watts to set

 

[ilporcupine]

Sonicbomb, stols001 and others who referenced mass are correct in that it will impact your vaping experience, in particular the ramp up/down time. If you are running a high mass build you will need more power to achieve the ideal coil temp in a reasonable amount of time. Ideally, you would maximize the surface area to mass ratio and have the mass within the appropriate range given your power constraints. If you want to vape in the 30-50W range, all other factors being equal (and there are several), shoot for less than 500 mg. Most exotics will be 1,000 mg + and you will likely need 80W or more to have a good experience.

Here is a area/mass table I created a few years ago when I first started building coils that helped me understand what I could do with my then 40W limit with eLeaf TC40s. It shows the mass, surface area, and ratio of the two across a number of different coil configurations including twisted and parallel cores. I hope it helps.

This is interesting from my point of view. My device is VV/VW, but will not fire below 1.3 ohms, and is limited to 15 W. Man is it hard to wick a tiny little coil of really thin wire.

 

[Cas002]

This is interesting from my point of view. My device is VV/VW, but will not fire below 1.3 ohms, and is limited to 15 W. Man is it hard to wick a tiny little coil of really thin wire.

Try using a single Kanthal A1 coil builds which has the highest resistance per volume of wire I've used. Also use the highest ID (inside diameter) and wraps you can that fits in your build deck. GL!

 

[Coyote628]

Youre prob gonna waste a bunch of wire learning to build anyway. When i started, i would build a coil (or 2), then check the resistance on a meter, then i would try different wattages til i found where it worked best for me. Yes, it was, and for me still is, kinda hit and miss, especially when i start twisting wire together to make gnarly beastly looking coils but also for me, that is half the fun. The reward is getting it right and having an awesome vape experience, which again for me, is large thick clouds and large thick flavor. The main thing is not to worry. Have fun with it.