Daul coil building questions

[93gc40]

I understand that when building dual the coil have to be the same ohm... Why?
If they have to be same ohms do they also have to be the same gauge wire? Say 1 coil 30aw@3ohm+32aw@3ohm for 1.5. I know one coil would heat faster.

 

[chrisKRAWLER]

You just answered your own question... you want the coils to heat evenly

 

[roxynoodle]

Yes, build them identically so they heat evenly.

 

[Spencer87]

Ive heard of a turbo coil though.. But I am not sure how it works.


I assume you want them to be the same resistance because if they are not, For some reason of another, your battery will vent and blow off your face...
I have no clue why... but I am sure you can ask someone else.

pretty much anything will make your battery go BOOM. Its almost a guarentee these days. Enjoy your face while you can.


Totally kidding. But... Look up the turbo coil. I am not sure how to do it... just heard about it. The coil of lower gauge heats up the thicker gauge one faster...

 

[supertrunker]

The coils ought to be even resistance, but how you achieve that is not important. You can mix different gauges if you want.

T

 

[Ryedan]

I understand that when building dual the coil have to be the same ohm... Why?
If they have to be same ohms do they also have to be the same gauge wire? Say 1 coil 30aw@3ohm+32aw@3ohm for 1.5. I know one coil would heat faster.

I always make mine the same. Gives me two coils that behave the same way and that makes it easy for me to set up a dual coil atty so it does what I design it to do.

Now, they don't have to be the same resistance, the mod is not going to blow up if you do that. The lower resistance coil will however make more power (watts) than the other one and will probably burn juice before the other coil giving you less of a build window to play with. I really can't think of any good reason why you would want to do that.

Use different gauge wire? Yes, you could design two coils so one heats up faster, has higher resistance and uses thinner wire and the other coil heats slower but puts out more watts and vapor with thicker wire at lower resistance. I don't know anyone who does this and I don't feel the need to experiment with it myself. OTOH, it could be a neat idea to play with. I do suggest you get very good at building identical coil dual coil builds first.

If you still want to go with dissimilar coil builds after that develop a really good understanding of something like the Steam Engine coil wrapping calculator so you can design coils to your specifications. You also need to understand the mechanics of vaping well enough to know what to design.

 

[Signmaker]

Really, they dont even have to be even resistance. All that matters is the net resistance the battery is subjected to. A 2ohm and .5ohm coil together wont make your battery magically explode.

Will it work well? Probably not. The main reason being attys that are designed for dual coil have symmetrical airflow. What would happen is your 2ohm coil would be under powered and over aired, producing nothing of value, while being inefficient with the 0.5 coil.

There is theory that you could run asymmetrical coils, with segregated airflow, to bring out a wider range of flavor profile from a vape. Experimentation could be done with the attys that have independantly adjustable airflow holes...but it would be a lot of building/fiddling/testing, just to get one setup that makes one particular juice slightly better tasting. At that point, I'd sooner double-barrel a pair of vaporizers.

As for using a faster-heating small coil to pre heat a larger one...energy just doesnt work that way, sorry. Redundant anyway, as boost modes are now being programmed into VW devices (pretty much the one cool thing the Provari 3 does).

 

[supertrunker]

I see a real disadvantage to one coil heating faster than the other, namely that it will clog faster. If you make one coil from a bit of 26g and another from fewer wraps of, say 32g, such that they are the same resistance, that may not be the case.

i have seen a build that used one coil of R41 and one of Mundy Magic wire that Pdib made - but generally i'm with Ryedan, keep them identical in every respect for ease.

If you run a 3 post atty, you can just make a sleeper coil and it's often faster than making 2 separate coils.

T

 

[Smann245]

It's best to start with simple coil builds. After getting good at that, experiment with complex builds. Then when you realize the simple builds perform as well as the complicated builds, well.....

 

[DavidOck]

It's Ohm's Law, and there's no getting around it. The current will divide across the two resistors proportionally to their values. So if one is 0.5 and one is 2, the lower one will get 4 times the current. The higher value one may not even get hot enough to vaporize. If they are identical the current divides evenly. Different gauge wire but same resistance would be ok on current, but I have no idea how it would perform.

But no, it probably won't blow up.