I have a question about sub ohm vaping

[patrao_n]

So before we begin. I have been in the electronic business a while. I have been everything from an Rf tech to r and d tech testing fuses. As well as building various things for work. I am aware of battery safety. I have an xtar vp1 charger. I use aw imr 18650 1600 may batteries with a 24 amp drain. I know how to build coils and check constantly throughout the day for shorts.

OK so now that is out of the way. I have a few Igo l. I have drilled the top caps to 1/16 airholes. Usually only do single coils. I am getting the same vapor production from my micro coil at 1.5 ohms as I am with a coil at .6 ohms. I am at a loss. The mod I am using which should have no effect would be the m16 sentinel mod in brass. Is there any tips or tricks? I don't normally cloud chase. Was just curious why the vape is the same.

I have a nimbus that I dual coil on. With 2 1.2 coils in parallel I still get the same vape as I do with a single 1.5 micro coil on the Igo on a provari.
Does sub ohm cloud chasing require bigger air holes than I already have? My coils are wrapped on a 1/16 drill bit. I am using 28 gage kanthal a1 for all builds. Thank you ecf

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[Strontium]

This guys is all about subohms, but that is not the point.
With your background you can "absorb" some of his tricks, and use them in your build.

Bishopheals - YouTube

 

[NicoHolic]

Try a 0.5Ω single micro coil made from 8 wraps of 26 AWG Nichrome around a 1/16" drill bit. It's significantly more productive than my 0.8Ω single micro coil made from 8 wraps of 27 AWG Kanthal, which is pretty awesome in itself.

 

[toddrhodes]

Try a 0.5Ω single micro coil made from 8 wraps of 26 AWG Nichrome around a 1/16" drill bit. It's significantly more productive than my 0.8Ω single micro coil made from 8 wraps of 27 AWG Kanthal, which is pretty awesome in itself.

Are you using them in the same atty, just different coils? What wicks are you using? I just ordered some 27 awg kanthal from Temco but .8 ohm is about the lowest I want to go at this point. Sorry for the threadjack, hopefully this helps OP too.

 

[hazarada]

So before we begin. I have been in the electronic business a while. I have been everything from an Rf tech to r and d tech testing fuses.

then you should know why its stupid, you can achieve the same result on a more reasonable resistance.

 

[NicoHolic]

Are you using them in the same atty, just different coils?

Yes, same attys. I have four Reomizer 2.0 RDAs for my two REO Grands.

What wicks are you using?

Organic cotton balls.

I just ordered some 27 awg kanthal from Temco but .8 ohm is about the lowest I want to go at this point. Sorry for the threadjack, hopefully this helps OP too.

I think you'll like it. This 0.8Ω coil is my daily driver... and I wrapped it August 1st.

 

[toddrhodes]

then you should know why its stupid, you can achieve the same result on a more reasonable resistance.

If I may interject, what is the reasoning? I have a reasonable amount of electrical knowledge but not to an EE-degree or anything. Is it because a 1.5 ohm microcoil, despite being 2.5 * the resistance of a .6 ohm coil, is more efficient in some way? I've never coiled anything but a microcoil, 1/16 drillbit, all coils touching, etc... and when I fire it up dry on a PV it glows hot and fast so I guess I don't have a "normal" coil experience to compare it to. Just curious, that's all.

 

[DoogieTony]

Basically, its because the micro coil has more wick to wire contact. The larger surface area of the micro will vaporize more liquid.
While airflow has an impact on production you need to find a balance between power, airflow, wick, and wire to get better results.

If you want bigger clouds you'll have to play around with lower gauge wire and different coil positions and setups.

 

[DoogieTony]

then you should know why its stupid, you can achieve the same result on a more reasonable resistance.

It's not stupid to go sub ohm if you know what you're doing and take proper precautions.

 

[toddrhodes]

Basically, its because the micro coil has more wick to wire contact. The larger surface area of the micro will vaporize more liquid.
While airflow has an impact on production you need to find a balance between power, airflow, wick, and wire to get better results.

If you want bigger clouds you'll have to play around with lower gauge wire and different coil positions and setups.

Thanks for the explanation Tony. I am not a cloud chaser by any stretch, was just curious. The more you know, and all that

 

[DrillRX]

Basically, its because the micro coil has more wick to wire contact. The larger surface area of the micro will vaporize more liquid.
While airflow has an impact on production you need to find a balance between power, airflow, wick, and wire to get better results.

If you want bigger clouds you'll have to play around with lower gauge wire and different coil positions and setups.

I agree.

I have built several quad coils In the same resistance. The first was a 28 gauge verticle 1-2 wrap that measures roughly 0.35 ohms. Voluminous clouds. The second was a 32 gauge build but I doubled over and twisted the wire twice, which is basically four 32 guage wires twisted and then built a verticle 1-2 wrap that measures 0.35-0.38 ohms. Produces the kind of clouds you get lost in!!

The only thing I could think was the difference was the exposure to wicking material was greater on the twisted wire.

 

[tj99959]

To sum it up, sub ohm was the first way we learned how to produce a large cloud. We have since learned that it isn't necessary to use sub ohm to produce that same cloud. R&D marches on.

 

[patrao_n]

Thanks everyone. I really appreciate the responses. I will play around some more with my builds.

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[Enoch777]

Might consider lowering to 3/64" or even 1/32". With 28ga it should take around 15-20 wraps to get a reasonable resistance for single coil
builds, of course you can always sub it if you feel the need. I used 3/32" and 1/16" for a while but having switched to the smallest diameters I've noticed denser clouds and even better flavor.

Not a huge amount, but noticeable.

 

[patrao_n]

Well I decided to try again. Whipped up a .7 ohm coil. 28 gauge kanthal. Wrapped it on silica this time. Didn't use a micro and vapes awesome now. I was always worried about burning the cotton. First time using silica.

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