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I am still waiting for the ECF Gurus to pipe in and give this guy some direction. Every thing I "know" about vaping I read or monkey see monkey do! I am a ...... when it comes to tools n stuff. Or so I used to be. I built my first dual coil on an Igo-s. You can see it here....
Igo-s dual coils .7 ohms!!! - YouTube
and here
Igo-s part 3 dual coils .5 ohms - YouTube
and the IGO-L dual coils....
Igo-L .4 ohm dual coils!! - YouTube
I am gonna shoot my build of a quad and put it on here..unless an ECF demigod beats me to it!
Igo-s dual coils .7 ohms!!! - YouTube
and here
Igo-s part 3 dual coils .5 ohms - YouTube
and the IGO-L dual coils....
Igo-L .4 ohm dual coils!! - YouTube
I am gonna shoot my build of a quad and put it on here..unless an ECF demigod beats me to it!
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Something definitely wrong with my juice....I am vaping 100mls + a week!!! Thats just wrong!!Single coils, dual coils and now quad coils???
My feeling is that if you need that many coils, there may be something wrong with your juice.
Quad I built this afternoon after reading this post! 28g 3 wraps each coil. On the Igo-L. Metered out at .2ohms. Just a novelty. Needs tinkering. Not sure I like it that hot!! Love my duals. Gonna try a few ideas I have kicking around!!
Are you running that off a car battery?
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Sent from my Nexus 4 using Tapatalk 4 Beta
Yes, master Single coils. Understand relation of Coil, wick material/design. Study best e-liquid blend for performance. understand Air flow in relation to vapor production.
Move to and master Dual coils.
Build a solid foundation before exploring Quad Coils. Know your electronics limits.
The Face you save may be your own.
Agree ... it all comes down to vaping technique and lung capacity.
I've built single coil rba's and rda's to friends and relatives. While all built the same way, some folks could produce massive clouds, others just plain vapors with my them. Again, technique and lung capacity, and VG ...
I'd get a 2cent chip just to be on the safe side. If you are going sub ohm, which might be the case with a quad, you run into a huge risk of venting. Quads are fun. I'd recommend getting the IGO-W instead of trying it on the IGO-L. It is a lot easier to build.
There are several general electrical rules you need to pay attention to.
Circuits in parallel will halve the average resistance. This means that in theory two 3 Ohm coils each attached to the positive and negative posts at their ends will produce a 1.5 Ohm resistance.
Coils placed in series will be additive. Those same 3 Ohm coils placed where coil A is connected to the negative post and the other end is attached to coil B, then connect the end of coil B to the positive post. This would create a 6 Ohm coil.
If you set four 1 Ohm coils in parallel the resistance would become .25 Ohm. Sounds great until you understand just how many Amps that takes. A 3.7v battery on a .25 Ohm quad coil would have to handle 14.8 Amps. That is 54.76 Watts.
You could do a hybrid and some of you may be able to use two Kanthal wires by making a double set of coils on each wire. This means if you create each set to produce 1 Ohm in series and then wire each set as a parallel circuit you change the results. A 3.7v battery on the resulting .5 Ohm quad coil would make it 7.4 Amps and 27.28 Watts.
Tweak the design to make the entire resistance to .8 or 1 Ohm would reduce strain on the battery, but would also not get as hot.
I am sure there are other calculations I am missing. I think the hybrid circuit would work better, but that also would depend on whether your battery can handle that kind of discharge.
I think my math was correct...
Circuits in parallel will halve the average resistance. This means that in theory two 3 Ohm coils each attached to the positive and negative posts at their ends will produce a 1.5 Ohm resistance.
Coils placed in series will be additive. Those same 3 Ohm coils placed where coil A is connected to the negative post and the other end is attached to coil B, then connect the end of coil B to the positive post. This would create a 6 Ohm coil.
If you set four 1 Ohm coils in parallel the resistance would become .25 Ohm. Sounds great until you understand just how many Amps that takes. A 3.7v battery on a .25 Ohm quad coil would have to handle 14.8 Amps. That is 54.76 Watts.
You could do a hybrid and some of you may be able to use two Kanthal wires by making a double set of coils on each wire. This means if you create each set to produce 1 Ohm in series and then wire each set as a parallel circuit you change the results. A 3.7v battery on the resulting .5 Ohm quad coil would make it 7.4 Amps and 27.28 Watts.
Tweak the design to make the entire resistance to .8 or 1 Ohm would reduce strain on the battery, but would also not get as hot.
I am sure there are other calculations I am missing. I think the hybrid circuit would work better, but that also would depend on whether your battery can handle that kind of discharge.
I think my math was correct...
If anyone does not understand the attraction of mechanical mods here is one reason they are coveted. A variable voltage mod will usually max out on Amp output. So putting a .5 Ohm atomizer and running it at 6v will not run 12 Amps. A mechanical, however, is not as limited because it is a direct connection from the battery to the coil(the limit becomes more about how hard that battery can push). Pbusardo has some great readings on various devices that shows amp limitations.
Technically the equation is:
1/r1+1/r2+1/r3+etc=1/x...
I agree that this is getting out of hand; imo, definitely not something that should be discussed in the newcomer section.
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You are correct of course, but this can get more complex quickly.
https://en.wikipedia.org/wiki/Ohm's_law
Oh, totally. That was just to figure the resistance of coils in parallel. Use my equation to get R, then plug that into yours to get watts. With all the inverse functions, it's easy to see how things get out of hand very quickly.
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Yup, 0.3 ohms at 4.2 volts draws 14 amps, so the 10 amp limited batts will fry eventually. I use MNKE at 0.5 to 0.8 ohms. Lots of leeway for shorts.
Wow, at 0.2 ohms you are drawing 21 amps at 4.2 volts. Hope the Sanyos are hanging in there and that you catch any shorts early. Vape safe guys!
i built a quad coil on my nimbus. 4 coils, each 2ohm micro(ish) coils. on my metes it came out to about .5 ohm.
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