Micro coil questions

[Skyfntm]

Hey guys,

Been lurking looking for information on some micro coils. But have not been able to locate what I'm looking for. What I'm looking for is if anyone has ever taken the different sized kanthal and wrapped micro coils with the same amount of wraps and recorded the ohms for each one. I know that you can get the same ohms from all the sizes of kanthal in form or another with the member of wraps but I would like to see if someone has that info.

Thanks for taking a look!
Skyler

 

[MrStik]

In theory, a longer 30g wire can have the same resistance as a shorter 32g. So yeah, more wraps with a 30g wire can get the same ohms as a coil with less wraps on a 32g wire... I haven't tried testing that myself but this link http://www.e-cigarette-forum.com/forum/rebuildable-atomizer-systems/320042-resistance-wire-kanthal-nichrome.html explains wire resistance

 

[RubyRoo]

I don't have a chart or anything, but generally, with micro coils, you do about 10 wraps with 28 gauge and get about 1.8 ohms. 11 wraps of 30g got me 2.4 ohms, and not many people use 32 with micro coils because they become very fragile. I'd recommend looking up RipTrippers videos on YouTube for some good micro coil tutorials. Good luck!

 

[suspectK]

I just did a 9-10 wrap of 30 gauge kanthal on 3mm hollow eko wool. I wrapped it on the wick with a tiny screwdriver through it. I ended up at 4.2 Ohms. It's really high, but I was playing around with them earlier and wanted to try it. I've been using it for the past 3 hours.. I think I like the higher resistance because I don't have a lower level of nicotine containing liquid.

Circumference is really the biggest factor in your resistance. I started a thread in the RBA subforum the other night, and the person that helped me used 1/16" with 28gauge, and simplified that ~9 wraps=1 Ohm and 30 gauge 5-6 wraps=1 Ohm.

 

[_sidekick_]

I don't have a chart or anything, but generally, with micro coils, you do about 10 wraps with 28 gauge and get about 1.8 ohms. 11 wraps of 30g got me 2.4 ohms, and not many people use 32 with micro coils because they become very fragile. I'd recommend looking up RipTrippers videos on YouTube for some good micro coil tutorials. Good luck!

11/12 wraps of 28g leaves me with about 1.4ohms. You need a multimeter or a mod that can read resistance if you're going to build you own coils.

 

[Scarey]

You know, you guys keep citing the number of wraps like it means something. 10 wraps of 28g around a 1/16 drill bit will have a different resistance than 10 wraps of 28g around a 5/64 bit.

 

[Lucky1127]

10 wraps around 1/16 drilbit 28 gauge got me around 1 ohm been using cotton for wick

 

[Lessifer]

This isn't my pic, it was made by super_X_drifter who is, in my opinion, the creator of the micro coil, though that's neither here nor there.



If you're wrapping bigger than the chart then it's a tightly wrapped regular coil, similar results but not quite as much instant intense heat.

As for the resistances, I can give you the two that I work with: 30g K 1/16" ID at 9 wraps is ~1.8ohm, 28g N 1/16" ID at 9 wraps is 0.8ohm.

 

[Skyfntm]

All this is what I'm looking for!! And please guys we all know that you need an ohm meter or device to check your ohms. I may have not built my own coils yet but I have done all the research. I posted here in the new members cuz I know I can get good answers here. Thanks guys and keep those numbers commin!!

 

[Lessifer]

Also, http://www.e-cigarette-forum.com/fo...271-micro-coils-increase-vapor-flavor-th.html

 

[Skyfntm]

Also, http://www.e-cigarette-forum.com/fo...271-micro-coils-increase-vapor-flavor-th.html

This isn't my pic, it was made by super_X_drifter who is, in my opinion, the creator of the micro coil, though that's neither here nor there.

View attachment 262697

If you're wrapping bigger than the chart then it's a tightly wrapped regular coil, similar results but not quite as much instant intense heat.

As for the resistances, I can give you the two that I work with: 30g K 1/16" ID at 9 wraps is ~1.8ohm, 28g N 1/16" ID at 9 wraps is 0.8ohm.

Thanks lessifer!! And the id does matter because you are using more wire to get the wraps isn't that correct?

 

[MrStik]

yeah.. basically the total length of the wire does matter.

 

[Lessifer]

Thanks lessifer!! And the id does matter because you are using more wire to get the wraps isn't that correct?

It's about heat and wick to coil contact. If you take two coils that are 1.8ohm using 30g K but you have one that is 10 wraps at 1/16" inner diameter and one that is say 5 wraps at 3mm inner diameter, they're going to produce very different vapes even though it's the same amount of wire and you hit it with the same amount of power. Wrapping the coil close together lets you share heat between coils, and wrapping with a small inner diameter means you're not only sharing heat side to side but through the wick also, that's why performance drops off the larger you go with ID. The nano range does this same thing, but it's harder or even impossible to thread a wick through so people tend to put them ON a bed of cotton instead of having a traditional wick.

 

[Skyfntm]

It's about heat and wick to coil contact. If you take two coils that are 1.8ohm using 30g K but you have one that is 10 wraps at 1/16" inner diameter and one that is say 5 wraps at 3mm inner diameter, they're going to produce very different vapes even though it's the same amount of wire and you hit it with the same amount of power. Wrapping the coil close together lets you share heat between coils, and wrapping with a small inner diameter means you're not only sharing heat side to side but through the wick also, that's why performance drops off the larger you go with ID. The nano range does this same thing, but it's harder or even impossible to thread a wick through so people tend to put them ON a bed of cotton instead of having a traditional wick.

That makes sence. Thanks again lessifer!!

 

[bosun]

Is this any help?

Kanthal A-1 Wire Specs: (Ohms Per Inch)

•28 AWG- 0.439 Ohms/in, 0.0508 Diameter (in.)

•30 AWG- 0.696 Ohms/in, 0.0100 Diameter (in.)

•32 AWG- 1.091 Ohms/in, 0.0080 Diameter (in.)

•33 AWG- 1.383 Ohms/in, 0.0071 Diameter (in.)

•34 AWG- 1.758 Ohms/in, 0.0063 Diameter (in.)
-----------------------
Gage AWG Ohms / Foot
22 1.3620
23 1.7175
24 2.1657
25 2.7309
26 3.4436
27 4.3423
28 5.4756
29 6.9046
30 8.7065
31 10.9787
32 13.8439
33 17.4569
34 22.0128
36 35.0017

 

[Skyfntm]

Is this any help?

Kanthal A-1 Wire Specs: (Ohms Per Inch)

•28 AWG- 0.439 Ohms/in, 0.0508 Diameter (in.)

•30 AWG- 0.696 Ohms/in, 0.0100 Diameter (in.)

•32 AWG- 1.091 Ohms/in, 0.0080 Diameter (in.)

•33 AWG- 1.383 Ohms/in, 0.0071 Diameter (in.)

•34 AWG- 1.758 Ohms/in, 0.0063 Diameter (in.)
-----------------------
Gage AWG Ohms / Foot
22 1.3620
23 1.7175
24 2.1657
25 2.7309
26 3.4436
27 4.3423
28 5.4756
29 6.9046
30 8.7065
31 10.9787
32 13.8439
33 17.4569
34 22.0128
36 35.0017

As a quick reference for ohm/in yes it does bosun. Thanks.