Coil building help

So my first rta is arriving tommorow. I was wondering how the gauge of the wire and the amount of wraps affects the ohms. Also i inputed some coil builds into a app similar to steam engine and it said:
For 24 gauge kanthol with 4 wraps the ohms would be 0.463 and the reccomended wattage would be 15 to 31
But
For with 7 wraps the ohms would be 0.733 and the reccomended wattage would be 27 to 54.
This has me confused as i though
more surface area= bigger clouds
Lower ohms = bigger clouds
Higher wattage = bigger clouds

If anyone who builds there own coils could help me out with understanding all this it wouod be much appriciated
Cheers

You've confused me (not hard!) someone'll be along who knows soon though!

keepitgoin said:

You've confused me (not hard!) someone'll be along who knows soon though!

Click to expand...

Ive confused myself. Time to steal my sons physics textbook

Are you building for a mech fella? if your not then it doesn`t matter as you can just change the wattage to whatever you want. .

Anyway to answer your questions - Yes you are right and you have the numbers back to front up there

Your 0.4 ohm build is 44 watts and you 0.7 build is 25 watts - that's at 4.2 volts

Happy vaping now

@Vapen00b47

Chapperz said:

Are you building for a mech fella? if your not then it doesn`t matter as you can just change the wattage to whatever you want. .

Anyway to answer your questions - Yes you are right and you have the numbers back to front up there

Your 0.4 ohm build is 44 watts and you 0.7 build is 25 watts - that's at 4.2 volts

Happy vaping now

@Vapen00b47

Click to expand...

Guess the app is wrong time to delete it. Im building for a regualted smok t priv. Just trying to build a coil that replicates the same amount of vapour as the 0.15 qaud coils i used in my baby beast.

Fused Clapton’s 24g ss about 7-8 wraps 3mm id will be about .15 ohms vape around 70w but use steam engine website and put in your wire type and inner is size and it will tell you how many wraps mate

@Vapen00b47 Ah ok - So yeah it really doesn`t matter what ohms you get/go for - You can just jack the voltage up or down to get the vape you want! The mod will do the work to deliver lets say 40w no matter the ohmage of the coil

When it becomes important is when you are dealing with mechs/mods without a variable wattage.

Just build something pretty that will fit nicely in your RTA, without touching the sides ect ect. The 5 to 7 wraps you mention above is actually probably going to be a good size at 3mm, but feel free to play as you have a safe device.

If im going for clouds whats more inportant the amount of wraps or the ohms? I guess ill just play around with it.

More wraps of the same diameter coil means more resistance, as there’s more metal for the electricity to get through between the posts - you’ll see this if you unwind them. The coils are just a way of adding length to the wire while still fitting it in a small space.

I always use the analogy of a road, since it’s quite simple and works well - longer wire means it will take a car (the electricity) longer to get from a to b, since the wire (the road) is longer. That’s why more coils is bringing the resistance up.

Thicker wire can fit more down it at the same time (like adding an extra lane to the road), so the resistance is lower.

If you add an extra coil (such as by making a parallel build, twisted build or a dual coil setup) you’re giving the electricity twice as much wire that it can go through - so the resistance is halved (I.e. it’s half as difficult for the electricity to get from one end to the other).

I hope that doesn’t sound too simplistic, but it illustrates how resistance is affected by the wire.

Different materials have different resistances, which is why you’d need to do one wrap to get a 0.1 ohm coil out of kanthal - with something like nickel you’d need a dozen or more.

Other materials have other properties, such as being able to use temp control, or heating up quicker than kanthal (which has a pretty slow ramp up time). Kanthal seems to be the standard though, which is why I bought it first too!

I suppose more wire in contact with the cotton would be beneficial, but you’ve got to work with what’s practical and (to an extent) what you’ve got available.

There will be plenty of people who can help with getting big clouds, but my understanding is that it’s a mixture of high airflow, low ohm coils, high VG liquid and a lot of power.

Have a mess about on steam engine, and try a variety of builds - I imagine you’re using something regulated. I use twisted kanthal quite often at about 4 wraps for about 0.3 ohms which seems to work quite nice and not Gunk up too bad, which is a bonus.

Fergmeister said:

More wraps of the same diameter coil means more resistance, as there’s more metal for the electricity to get through between the posts - you’ll see this if you unwind them. The coils are just a way of adding length to the wire while still fitting it in a small space.

I always use the analogy of a road, since it’s quite simple and works well - longer wire means it will take a car (the electricity) longer to get from a to b, since the wire (the road) is longer. That’s why more coils is bringing the resistance up.

Thicker wire can fit more down it at the same time (like adding an extra lane to the road), so the resistance is lower.

If you add an extra coil (such as by making a parallel build, twisted build or a dual coil setup) you’re giving the electricity twice as much wire that it can go through - so the resistance is halved (I.e. it’s half as difficult for the electricity to get from one end to the other).

I hope that doesn’t sound too simplistic, but it illustrates how resistance is affected by the wire.

Different materials have different resistances, which is why you’d need to do one wrap to get a 0.1 ohm coil out of kanthal - with something like nickel you’d need a dozen or more.

Other materials have other properties, such as being able to use temp control, or heating up quicker than kanthal (which has a pretty slow ramp up time). Kanthal seems to be the standard though, which is why I bought it first too!

I suppose more wire in contact with the cotton would be beneficial, but you’ve got to work with what’s practical and (to an extent) what you’ve got available.

There will be plenty of people who can help with getting big clouds, but my understanding is that it’s a mixture of high airflow, low ohm coils, high VG liquid and a lot of power.

Have a mess about on steam engine, and try a variety of builds - I imagine you’re using something regulated. I use twisted kanthal quite often at about 4 wraps for about 0.3 ohms which seems to work quite nice and not Gunk up too bad, which is a bonus.

Click to expand...

It is a good analogy.