problems with coil

[carly cat]

Hi! New here to this site and to rebuilding. I have a question about coils..or rather what i am doing wrong. I have a magma clone by infinite on an istick 30 watt. the last couple coils ive built have been giving me problems. I feel like it fires longer than it should be firing... after i stop pressing the button it still makes a sound like its firing. I've built decent coils before and im not sure what i am doing wrong.

 

[sonicbomb]

What guage wire are you using and what is the internal diameter of that coil?

 

[carly cat]

I am using the little blue screwdriver that came with it and its 26

 

[RandyF]

That doesn't sound like you are doing anything wrong. How long are you hearing the sizzle after you let off the button? If it is for a second, then that is normal, it takes about that long as the coil cools. It could be you are heating the coil up too much, but you should notice that more in the vape than you would the cool down.

Now if you are hearing it for longer than a second or so then it may be a problem with the mod. I can't really think of a scenario where the quality of the build would cause a regulated mod to fire incorrectly. If you had a short it just wouldn't work.

 

[Wolfenstark]

Ohms ? watts ?
Looks like not much wick coming out the coil on the left side.
Wick looks to me too thin in the coil. I know there are some that like it loose but for me thats always caused problems but snug in the coil has been good.
Build looks uneven - is it glowing evenly from the inside out ?

 

[carly cat]

Hmmm okay thanks.. it does taste burnt sometimes though when it happens. . And so i just drip more juice on it and it goes aways for the next couple hits.. then happens again..is this normal? I noticed it didnt happen with the other coils i built that were about 5 wraps

 

[tehdarkaura]

try tightening the screws a bit -- are any loose at all? the thing is they tend to need to be tightened occasionally because if they get just a bit loose then the mod kind of goes out of wack and pumps really high amounts of power through them. you might also see the ohms showing differently if this is the case. good luck

 

[carly cat]

Yes it was glowing evenly and i pinched it with some sweezers after i dry burnt it. its reading .08 ohms and i run it at about 16 watts because i cant go higher for some reason without it firing longer each time i take a vape.

 

[Robert Cromwell]

the less wick in the coil and the larger diameter of the wire used will cause the cool down time of the coil to be longer, this is probably the cause of your continuing to "fire" issue.

.08 ohms??? I hope you mean .8 ohms.

Try about 1.2 ohms and longer wicks and you should see an improvement on an Istick 30.

 

[angrymic1984]

If your getting a burnt taste it could be ur wick isn't wicking fast enough or ur coil needs dry burning or that you don't have enough juice in the will to start with

 

[RandyF]

Your ohms are probably around .9, or they should be at least, so you are vaping around 5.7v at 30watts, which might be a bit high for the Magma, especially if you are taking weaker inhales.

 

[carly cat]

Yes!!! Wow sorry .8 ohms

 

[Robert Cromwell]

curl the tips of the wick around into all of the chamber not just that one side.
You will find that you can vape longer on a dripping before getting a burned or dry effect.

 

[Wolfenstark]

Wick should come out the coil and then bend down into the juice well.
On the right wick looks slightly brown and not in good position.
Also what I said before

 

[carly cat]

My ohm meter says .86 my istick says .9 so yeah your right.. but I don't go up to 30 watts. I stay in the 16-18 range. Thanks for all of your input.. im gonna try again right now.. its really frustrating me. I was loving dripping at first but now its become a pain because i cannot figure out what the problem is.

 

[DavidOck]

Yes it was glowing evenly and i pinched it with some tweezers after i dry burnt it. its reading .08 ohms and i run it at about 16 watts because i cant go higher for some reason without it firing longer each time i take a vape.

Large mass coils will continue to "cook" after releasing the fire button. There's so much metal there... takes a bit to heat up, then some time to cool down. While they won't last as long through repeated re-wicking, that's one of the reasons I like 30 gauge in my rebuildables. Faster to heat and cool.

Uh, 0.08 ohms at 16 watts calculates out to 200 amps. That's not going to happen with your iStick30... At 0.8 ohms, you're at 20 amps.

 

[RandyF]

Vaping attys with tighter airflow is a balancing act, and the Magma while technically an RDA, needs to be treated more like you would an RTA. Most RDA's you can get away with higher wattage vaping because you have so much airflow possibility, no so with the Magma. If you don't balance the airflow with the ohms and power you can easily run them too hot.

 

[RandyF]

My ohm meter says .86 my istick says .9 so yeah your right.. but I don't go up to 30 watts. I stay in the 16-18 range. Thanks for all of your input.. im gonna try again right now.. its really frustrating me. I was loving dripping at first but now its become a pain because i cannot figure out what the problem is.

At that wattage/Ω you run into another problem, I don't think the isticks have step down, so you are actually running more power than you think.

 

[carly cat]

I have it on the second air flow hole (both sides open) i feel like i get the best flavor with that. Should i be closing one side off instead of having two open?

 

[Robert Cromwell]

At that wattage/Ω you run into another problem, I don't think the isticks have step down, so you are actually running more power than you think.

Yep why I recommended a higher resistance coil. Easier to control the heat/wattage on.
heck that dripper should vape well at 2 - 3 ohms using a Istick 30.