Coil confusion

[gary1968]

Will somebody please put me out my misery.....
I cant get my head round number of turns, coil diameter, coil resistance, watts etc.
If I make 2 coils, both 2ohms for example, one made from 0.2 kanthal and the other 0.28 kanthal.
Now say they were both wound round a 2mm drill obviously the 0.28 kanthal coil would have more turns.
Now, if I ran them both at 9watts which one, if any, would heat up fastest, would one get hotter than the other?
I am trying to decide which kanthal would be better in my kfl with the mvp, I feel my 1.5ohm 0.28mm kanthal coil seems to take a while to heat up, would 0.2mm at the same resistance and watts heat up faster?
Sorry for the long winded post but its doing my head in, lol.

Gaz

Sent from my SM-T310 using Planet of the Vapes mobile app

 

[BucketMod]

The heat up time is more due to the MVP than anything. My vamo took much longer than a mechanical mod to heat a coil (but with a mech it is more dependent on the resistance of the build)

Builds having the same resistance but are built with different gauge wire, will have slightly different heat up times.
But I couldn't get any fast ramp up with a device such as yours, there was always a delay.

 

[ambivalent]

I think that a reasonable rule of thumb is that if it's got more mass then it'll take more energy to heat it up to a given temperature. So to answer your question, yes the 0.28mm will take longer to heat up than the 0.2mm for coils of equal resistance.

 

[Tubbyengineer]

Will somebody please put me out my misery.....
I cant get my head round number of turns, coil diameter, coil resistance, watts etc.
If I make 2 coils, both 2ohms for example, one made from 0.2 kanthal and the other 0.28 kanthal.
Now say they were both wound round a 2mm drill obviously the 0.28 kanthal coil would have more turns.
Now, if I ran them both at 9watts which one, if any, would heat up fastest, would one get hotter than the other?
I am trying to decide which kanthal would be better in my kfl with the mvp, I feel my 1.5ohm 0.28mm kanthal coil seems to take a while to heat up, would 0.2mm at the same resistance and watts heat up faster?
Sorry for the long winded post but its doing my head in, lol.

Gaz

Sent from my SM-T310 using Planet of the Vapes mobile app

I think you're over emphasising heat up times here, You should be aiming for a coil that is durable, neat and has a specific resistance. for an MVP2 that resistance is going to be approx 2 ohms but if you want to be sure go to the PBusardo review of the MVP2 and look at the output charts to see which resistance gives the best results and stick with that. Coils mafe of thinner gauge wires will heat up faster than ones of thicker gauges, however thinner coils are more fragile and lose shape or break easier than thicker coils. Put up with the increased warm up times (it really isn't that big a deal, you soon adjust to the slight lag) and benefit from the increased durability and longevity of thicker coils. I use 0.3mm wire in my builds an can get a month or more from a single coil in a Kayfun.

 

[gary1968]

Thanks folks.
I built another coil last night, 8 wraps round a 2mm drill of 0.28 kanthal, came out at 1.5ohms. It seems to be fine, good enough to last a few tanks anyway. Next build I will try 10 wraps to try to get closer to 2ohms as suggested by Tubbyengineer and try that.
I now think though that my issue might not be with the coil, its the amount of cotton I am trying to get into the coil, I think I might have been putting too much in, latest build I used visibly less than before and it seems to vape much better.

Thanks for the input,
Gaz

 

[Mr.Motivapr]

Thanks folks.
I built another coil last night, 8 wraps round a 2mm drill of 0.28 kanthal, came out at 1.5ohms. It seems to be fine, good enough to last a few tanks anyway. Next build I will try 10 wraps to try to get closer to 2ohms as suggested by Tubbyengineer and try that.
I now think though that my issue might not be with the coil, its the amount of cotton I am trying to get into the coil, I think I might have been putting too much in, latest build I used visibly less than before and it seems to vape much better.

Thanks for the input,
Gaz

You will hear this a thousand times over but with cotton less is more.

It expands with the juice to sit snug against the coil.

You want it so it's slightly snug but moves very easy with no resistance.

If you have to hold your coil in place and force it through with it snagging, by the time it wicks it will expand but have nowhere to go, therefore strangling the wick and lead to dry hit city.

Keep up the good work, the perseverance will pay off I promise

 

[deez404]

I have an app on my phone. That's how I learned everything just by in-putting information and gathering data.

the app I use is called vapers toolbox very helpful. It tells me exactly how long to cut my wire, it will tell me how many wraps if I input the diameter of the drill bit or wrapping pole, and will tell me what voltage or wattage I am vaping at plus amperage.

Will somebody please put me out my misery.....
I cant get my head round number of turns, coil diameter, coil resistance, watts etc.
If I make 2 coils, both 2ohms for example, one made from 0.2 kanthal and the other 0.28 kanthal.
Now say they were both wound round a 2mm drill obviously the 0.28 kanthal coil would have more turns.
Now, if I ran them both at 9watts which one, if any, would heat up fastest, would one get hotter than the other?
I am trying to decide which kanthal would be better in my kfl with the mvp, I feel my 1.5ohm 0.28mm kanthal coil seems to take a while to heat up, would 0.2mm at the same resistance and watts heat up faster?
Sorry for the long winded post but its doing my head in, lol.

Gaz

Sent from my SM-T310 using Planet of the Vapes mobile app

 

[Ade66]

+1 for vapers toolbox

 

[deez404]

+1 for vapers toolbox

Amen. That's what I use

Sent from my SM-N900V using Planet of the Vapes mobile app