30 gauge vs 32 gauge and wrapping coils and battery questions

[JaiHaze]

ok im a little lost, can you help me out here, if I wrap 2 coils, each 6 times with 30 gauge and 32 gauge which one will have more ohms? Also when wrapping the coil, the more compressed it is the less ohms it will have? Also have 2 coils vs 1 will the 2 give me less ohms?

Battery Question:
Is it truly ever heard of something like the evic running a 18350 exploding? I have read on here about the rocket modes and exploding mods.

I have a official Sent V4 and Im pretty sure there is no vent in it, and im always running dual coil with a 18350 and just concerned, please shed some light on the situation.

 

[MorpheusPA]

ok im a little lost, can you help me out here, if I wrap 2 coils, each 6 times with 30 gauge and 32 gauge which one will have more ohms? Also when wrapping the coil, the more compressed it is the less ohms it will have? Also have 2 coils vs 1 will the 2 give me less ohms?

The 30 gauge will have a lower resistance, all else being equal, than the 32 gauge. You don't mention the size, but figure, off the cuff and very generally, 32 gauge should give around 2.5 ohms, 30 gauge around 2.1. Give or take a lot.

More compressed coils will be shorter (as there's less wire between the coils) so the resistance will be a touch lower. It's usually not that significant.

Two coils in parallel will be half the resistance of one coil (if the coils are identical). So two 2 ohm coils will be a 1 ohm dual coil.

Battery Question:
Is it truly ever heard of something like the evic running a 18350 exploding? I have read on here about the rocket modes and exploding mods.

While any battery can blow, it's rare. Certainly always follow all battery safety rules.

I have a official Sent V4 and Im pretty sure there is no vent in it, and im always running dual coil with a 18350 and just concerned, please shed some light on the situation.

Somebody else will need to answer this, I'm unfamiliar with the mod. But I'll guarantee somebody here IS familiar with it.

 

[JaiHaze]

my problem is my prometheus reading is 3.1 and its 8 wrapped 30 guage dual coil and wont work on the evic, only on the mecahnical. I dont know why this. Automatically atomizer short

 

[JaiHaze]

my problem is my prometheus reading is 3.1 and its 8 wrapped 30 guage dual coil and wont work on the evic, only on the mecahnical. I dont know why this. Automatically atomizer short.

So the more I wrap ANY guage it brings it down?

 

[bcollier9253]

my problem is my prometheus reading is 3.1 and its 8 wrapped 30 guage dual coil and wont work on the evic, only on the mecahnical. I dont know why this. Automatically atomizer short.

So the more I wrap ANY guage it brings it down?

No, the more coils the higher the resistance. It will take more wraps of a lower gauge (thicker) wire to equal the ohms of a less wraped higher gauge (thinner) wire. That is if both were wraped with the same inside diameter and the same distance between the coils. I wrap my coils where they are compressed and wraped on a 1/16" drill bit.
This might help a bit
http://www.e-cigarette-forum.com/fo...-contact-micro-coil-rebuilding-tutorials.html
He has a chart somewhere in there for different builds that tells "x" wraps equals "x"ohms and what diameter they are wraped on.
Hope this helps!

 

[bosun]

The higher the number (and smaller the diameter) the more resistance there is. Depending on how much room there is for a finished coil and wether you want the coil to heat up faster (higher resistance) will help your decision on what size wire to use. I make a micro-coil using a 1/16th inch drill bit, five wraps of 32 gauge to give an approximate 1.8 ohms resistance.
Kanthal A-1 Wire Specs: (Ohms Per Inch)
•28 AWG- 0.439 Ohms/in, 0.0508 Diameter (in.)
•30 AWG- 0.696 Ohms/in, 0.0100 Diameter (in.)
•32 AWG- 1.091 Ohms/in, 0.0080 Diameter (in.)
•33 AWG- 1.383 Ohms/in, 0.0071 Diameter (in.)
•34 AWG- 1.758 Ohms/in, 0.0063 Diameter (in.)

 

[Completely Average]

I have 0 gauge pure copper wire at home.

I wonder how much power I would need to heat a coil using that.



(In case you're wondering, I use it for car amplifier installation. It connects directly to the battery and can power 1000+ watt RMS amplifiers without causing whine or hum through the speakers)

 

[Rickb119]

(In case you're wondering, I use it for car amplifier installation. It connects directly to the battery and can power 1000+ watt RMS amplifiers without causing whine or hum through the speakers)

My crystal ball sees hearing aids in your future.

 

[Sthur]

Sounds like one coil is shorted somewhere. Also the evic will only fire above 1.3ohms and above. 8 wraps on 30 guage (1/16 drill bit) with a microcoils should yield 1.8 ohms or 0.9 dual mode. You might want to check your connections and check with an volt meter or ohm meter. Be safe and check twice.

 

[JaiHaze]

see the problem is if i go single coil ill have 2 holes that will not allow me to tip the atty at all. So if I do go the single route which works fine and i hit the 1.9ish area we are good. so how would i get it at dual coil 2.0ish? Im trying to somewhat duplicate the hit of a vivi nova with a prometheus using a double coil trying to get more of a punch. Also for using 1/16th bit, what size ekowool are you using? Keep in mind im NOT using cotton, I dont like the taste and the whole auto dripping mode.

Also using a 18350 battery with the dual coil isnt an issue right. Sorry to sound inexperienced, but I am.

 

[bcollier9253]

(2) 4 ohm coils would give you a 2 ohm setup
Two coils in parallel will be half the resistance of one coil (if the coils are identical). So two 2ohm coils will be a 1 ohm dual coil.Quoted from MorpheusPA above

 

[Rob0506]

2 4 ohm coils would give you a 2 ohm dual, but if you are using a mech it won't vape very good because of the low voltage being applied to each coil. Imagine vaping a 4 ohm coil with 3.7 volts. Even with two coils it will be weak.

If you run it on a VV/VW mod and can boost it to 5 volts or so you will be fine, however.
Also, you have to be extra watchful of the ohms with an 18350 in a mech because these batteries have a much lower max continuous amp rating than 18650s.

 

[JaiHaze]

2 4 ohm coils would give you a 2 ohm dual, but if you are using a mech it won't vape very good because of the low voltage being applied to each coil. Imagine vaping a 4 ohm coil with 3.7 volts. Even with two coils it will be weak.

If you run it on a VV/VW mod and can boost it to 5 volts or so you will be fine, however.
Also, you have to be extra watchful of the ohms with an 18350 in a mech because these batteries have a much lower max continuous amp rating than 18650s.

the problem i have at 1 ohm it almost seems to strong, maybe 1.5? or even 1.2? I have to run dual coil unless i can find a single rba which I doubt. And what do you mwan about the 18350?

 

[MrBlondeVicVEGA]

I just switched back to 30 gauge from 28. I have been building single parallels (which is really a dual coil) in my iGo-W. I tend to build between .9 and 1.1 with 28 gauge, sometimes going down to .8, but i just found that it takes too long to heat 28 gauge wire up, and decided to build with 28 gauge. I did a few less wraps with the 30 than the 28, I think my .9 ohm 28 gauge parallel had 10 wraps, and I did an 8/7 for the 30 gauge that came in at 1.1 ohm. I really do like how fast it heats up though. So much battery is wasted heating up the other build. I think I'll save the 28 gauge for a serious build, maybe dual parallels...

 

[MrBlondeVicVEGA]

And what do you mwan about the 18350?[/QUOTE]

What he means is that you can't build too low with an 18350. Most quality 18350 batteries are only rated for 6 amps, which means you shouldn't go below .75 ohm with them. 18650 batteries have higher amp ratings and you can "safely" build lower ohms on a mech mod.