How do my builds effect ohms?

[NeXtDimensionVaping]

Hello all

I have a subtank mini, and the included mini rba plus is as far as I've gone in the world of rebuildables.

I have done well with these mini builds (26g kanthal &cotton bacon)

But I have a few questions,

How do I reach a specific ohm with my build?

My build generally come out to be .5-.7 ohms

What role does different gauge wire play in wattage/ohms/overall hit?



I much prefer sub ohm builds having tried 1.5+ builds...

And I am interested in reaching a super subohm build (.1, .2, .3 ohms etc.)

How would I reach a super sub ohm build?

It is my understanding that higher wattage, and a large rda/rta are necessary.

also what difference do the different types of wire make (kanthal, nickle, etc..)

Any help is appreciated.

Thankyou!!

 

[MattyTny]

Coil wrapping | Steam Engine | free vaping calculators
This is an easy way to understand how resistance wire works.

Use Kanthal A-1 since it's the most common and easiest. Choose a gauge, say 26 gauge. Pick single coil and set your resistance to where you want it. Start at a resistance of 1.0ohms. Then choose the coil's internal diameter, 2.5mm is pretty common.

You'll then see the number of wraps you need to reach the resistance, in this case it's about 8 wraps. Open the advanced tab and you can take a look at the coil width to see how long it will actually be. You can vary the coil diameter which will vary the number of wraps with the same resistance.

Also check out the heat flux in results. Plug in the wattage for the 1.0omh coil, say you're firing it at 4 volts, that comes out to about 16 watts using the Ohm's law calculator. You'll notice the color change indicating the heat coming from the coil.

Play around with it and check out Coil Builds | E-Cigarette Forum for ideas or help.

For your purposes just use Kanthal A-1 for now. Nichome80 is also popular, but has a lower resistance. Nickle is going to be for temp control devices.

I wouldn't try to do anything super subohm. Stay above 0.5ohms like you are now until you feel more comfortable. I'm not sure how low you can go on the subtank, but I wouldn't push it. There are other RTA's made for lower builds and dual coils, and certainly a lot of RDA's for low builds.

As an example I vape two RTA's with:
Dual 26 gauge 2.8mm coil ID @ 0.5ohms. Usually around 30watts
Dual 27 gauge 2.4mm coil ID @ 0.7ohms. Usually around 25watts

The most subohm RDA I vape is:
Dual 24 gauge 3.0mm coil ID @ 0.37ohms. Usually around 70watts

The battery life on my tanks are much better.

 

[NeXtDimensionVaping]

Coil wrapping | Steam Engine | free vaping calculators
This is an easy way to understand how resistance wire works.

Use Kanthal A-1 since it's the most common and easiest. Choose a gauge, say 26 gauge. Pick single coil and set your resistance to where you want it. Start at a resistance of 1.0ohms. Then choose the coil's internal diameter, 2.5mm is pretty common.

You'll then see the number of wraps you need to reach the resistance, in this case it's about 8 wraps. Open the advanced tab and you can take a look at the coil width to see how long it will actually be. You can vary the coil diameter which will vary the number of wraps with the same resistance.

Also check out the heat flux in results. Plug in the wattage for the 1.0omh coil, say you're firing it at 4 volts, that comes out to about 16 watts using the Ohm's law calculator. You'll notice the color change indicating the heat coming from the coil.

Play around with it and check out Coil Builds | E-Cigarette Forum for ideas or help.

For your purposes just use Kanthal A-1 for now. Nichome80 is also popular, but has a lower resistance. Nickle is going to be for temp control devices.

I wouldn't try to do anything super subohm. Stay above 0.5ohms like you are now until you feel more comfortable. I'm not sure how low you can go on the subtank, but I wouldn't push it. There are other RTA's made for lower builds and dual coils, and certainly a lot of RDA's for low builds.

As an example I vape two RTA's with:
Dual 26 gauge 2.8mm coil ID @ 0.5ohms. Usually around 30watts
Dual 27 gauge 2.4mm coil ID @ 0.7ohms. Usually around 25watts

The most subohm RDA I vape is:
Dual 24 gauge 3.0mm coil ID @ 0.37ohms. Usually around 70watts

The battery life on my tanks are much better.

Thank You!
You have been very helpful. I will hold off on super sub until I read up more on ohms law and get more experience. In the meantime ill mess around with the calc. And browse the forum.

What are the risks associated with super sub ohm builds over regular sub ohm (.5-.9ohms)?

 

[MattyTny]

What are the risks associated with super sub ohm builds over regular sub ohm (.5-.9ohms)?

When you build very low you need to make sure your batteries can handle the amount of amperage going through the coils. If you exceed the amperage limit of your batteries, you can have a major issue and harm yourself. Good batteries are always needed, such as Sony VTC4 batteries.

I wrote this blog as a little guide for understanding basics of devices, check it out if you have the time. There are also links on the bottom to useful information such as other really great blogs.
Ohm's Law and how it applies to personal vaporizers | E-Cigarette Forum