Dual Coils
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I'd imagine we're talking about a split second here... not a few seconds, right? Are they both heating evenly across the length of the coil... no hot spots? That would be a concern.
It shouldn't be much of an issue because they are separate coil wires (right?). One has slightly higher resistance than the other... length, wrap... whatever is causing the delay.
It shouldn't be much of an issue because they are separate coil wires (right?). One has slightly higher resistance than the other... length, wrap... whatever is causing the delay.
they most likely are not the same resistance. the one that isnt firing first is most likely a higher resistance. then again how much slower to glow is it as a few nanoseconds difference is somewhat normal? at most the one coil may pop and the chance of shorting with a loose wire will be there.
he juiced it up for me already, but before he did I noticed it was a while, not a nanosecond. do you think I should just take it off and rebuild it or is it okay to leave it until he fixes it in like 3 days?
built my own when I got home!! 30g kanthal wire with a 1 fold 3mm silica wick. it glowed together, but now I just have to wait till tomorrow to see how many ohms it is and how fast it'll drain my battery and if it's safe.
3 wraps each! it produces a lot of vapor, hopefully it doesn't drain my battery. I wish I had an ohm reader. trying to learn about safe and unsafe coils!
That's going to be reeeally low resistance. When I use 30g I get 1 ohm with 5 wraps on a single coil. Assuming the same size mold (I use 1/16") 3 wraps should be .6 and dual coils halves that so you're set up should be about .3. Probably not a safe set up.
I could be wrong, but it sounds to me like he's doubling his 3mm wick over to 6mm?
Sounds as listed above the coils are not the same resistance. I dont think the coils heating unevenly is the big issue as much as are you using batteries that can handle sub ohm amp draw? You friend is not doing you any favors if he is not educating you about the risks and how to vape such a set up as safely as possible.
Electricity will take the path of least resistance. So if one of the coils has just a little less wire than the other that one will heat up first. IMO you should read up on battery safety, building your own coils and sub ohm vaping before you go down this road. There are risks involved and ignorance could lead to some very bad results.
Electricity will take the path of least resistance. So if one of the coils has just a little less wire than the other that one will heat up first. IMO you should read up on battery safety, building your own coils and sub ohm vaping before you go down this road. There are risks involved and ignorance could lead to some very bad results.
If you have no means of checking the resistance of your atomizer, then you should not be using the coils, whether your friend built them or you did.
There is a misconception that the number of wraps is a good measure of resistance. This is inaccurate. Resistance of the coil is determined solely by the length of wire between the two terminals. The number of wraps, their diameter, the distance between them and the length of the legs between the coil and terminals are all variables that affect resistance because they all ultimately affect the total amount of wire used.
Measure out the exact same distance of the exact same guage of wire and you will get the exact same resistance every time.
But unless you have the ability measure resistance, how would you even know whether the coil you're using is safe or not?
How would you know that whether coil, used in your setup, could cause a serious accident?
There is a misconception that the number of wraps is a good measure of resistance. This is inaccurate. Resistance of the coil is determined solely by the length of wire between the two terminals. The number of wraps, their diameter, the distance between them and the length of the legs between the coil and terminals are all variables that affect resistance because they all ultimately affect the total amount of wire used.
Measure out the exact same distance of the exact same guage of wire and you will get the exact same resistance every time.
But unless you have the ability measure resistance, how would you even know whether the coil you're using is safe or not?
How would you know that whether coil, used in your setup, could cause a serious accident?
This x a million
When I do a coil I can get anywhere from 1.5 ohms to 2.1 ohms with the same number of wraps on the same wick. Sometimes it is wrapped tighter and sometimes looser. I would NEVER EVER use a coil I that I did not check with a multimeter for sheer safety reasons.
If you need a cheap meter I have a few xtra brand new ones from harbor freight. You can have one.
The 6 dollar meters from hobo freight do just fine for our needs, I've checked a few against my fluke and the difference is negligible as long as you know to take in to account the resistance of the leads.
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thanks everyone for the info!! I really appreciate it and will definitely look more into batteries and resistance!
thisis what I love about ECF. How many forums do you find where people give stuff away and even have a sub-forum (PIF) for doing so?
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