Hello, I'm a beginner just started a month ago. I have a melo 3 mini and I'm trying to coil it at 0.5 ohms but it keeps saying low resistance. It worked once at 0.17 oHms and now its stuck again. I am using 24 gauge titanium wire and tried wrapping 10 loops for more resistance but it just doesn't work. That lil vertical coil head sucks and its hard to coil and wick it! Is there something I need to know? I'm not sure if I'm doing it wrong, please help!
Can't coil it! Low resistance problem
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Hello Pranay
I'm not sure what your coil diameter will be but according to the coil calculator 6 wraps should give you 0.15 ohms with a 2.5 mm coil. Will your mod go down to 0.15 ohms?
I'm not sure what your coil diameter will be but according to the coil calculator 6 wraps should give you 0.15 ohms with a 2.5 mm coil. Will your mod go down to 0.15 ohms?
Here's the Deal...
If you use a certain Wire Alloy with a given thickness, the Ohms you get are Determined by Both how Big the Diameter of the Coil is and How Many Loops (wraps) the Coil has.
For 24ga Titanium and a 3mm Inner Coil Diameter, to be at .5 Ohms you are going to need about 17 Loops. And a 17 Loop Coil Isn't going to Fit in many RBA Decks.
But say you used 28ga Ti Wire instead? Then to be at .5 Ohms you would Need about 7 Loops. And that sounds More Reasonable.
The Problem you are having is that the Wire you are using is Just Too Thick to make a .5 Ohm Coil.
As another Member Mentioned, the site below is a Great Site to see what you would need for a given Wire to make a given coil.
Coil wrapping
Let me offer one little slice of advice to go along with everything else that's been said...
Get the Melo RBA and save yourself a metric ton of headaches...
Eleaf Melo 2 RBA (ECR Head)
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Get the Melo RBA and save yourself a metric ton of headaches...
Eleaf Melo 2 RBA (ECR Head)
Sent from my SAMSUNG-SM-N910A using Tapatalk
Of which almost all can handle .15 ohms easily in the correct mode.
First, check my rebuilding guide: Vaperrasso cCell rebuilding
Second, these coils are too small to get TI or SS or Khantal to work very well unless you'd go with extremely large wire (low gauge) which wouldn't even really fit well if at all in the cartridges... NI works best.
Example:
28 gauge NI200 = 12-13 wraps @ 3.5mm = 0.2
20 gauge TI = 13-14 wraps @ 3.5mm = 0.2
18 gauge SS (316E) = 12 wraps @ 3.5mm = 0.2
This is why the pre-made cartridges are dual coils, which to do by hand is extremely difficult.
Even if you'd get something to work, odds are that you'd find that it would burn very badly as TI and SS (or Khantal) are simply terrible for single small coils, they just heat up way too fast even with TC.
Just switch to NI and save yourself the headache....
But heck, what do I know, I've only been rebuilding these cartridges for over a year for three people.
Second, these coils are too small to get TI or SS or Khantal to work very well unless you'd go with extremely large wire (low gauge) which wouldn't even really fit well if at all in the cartridges... NI works best.
Example:
28 gauge NI200 = 12-13 wraps @ 3.5mm = 0.2
20 gauge TI = 13-14 wraps @ 3.5mm = 0.2
18 gauge SS (316E) = 12 wraps @ 3.5mm = 0.2
This is why the pre-made cartridges are dual coils, which to do by hand is extremely difficult.
Even if you'd get something to work, odds are that you'd find that it would burn very badly as TI and SS (or Khantal) are simply terrible for single small coils, they just heat up way too fast even with TC.
Just switch to NI and save yourself the headache....
But heck, what do I know, I've only been rebuilding these cartridges for over a year for three people.
The resistance of your wire is to low. Try 26 or 28g. I would even recommend using Nichrome or kanthal. Kanthal is cheaper, NiChrome is better. You might even try something like 30 or 32 ga stainless steel.
Im not sure about how to rebuild that atomizer, since i couldn't find a photo of the inside, but I use 6 wraps of 3 strand parallel 32ga (you can twist them to make them easier to work with) on my Kanger mini rba. It comes out to 0.58 ( I think) ohm.
There's no reason to use thick gauge wire 28ga ss316 should work just fine, and will fit well. What's your reasoning for needing thick wire? The resistance? That's not really an issue with regulated mods. Ni200 is a difficult wire to work with (well, more difficult than ss and ti) and really have very few benefits when using modern tc mods.
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Like I said, I've only been doing these exact coil cartridge type for over a year, been vaping for over 8 years and building coil for a few years using pretty much all metal types and various wicking material.
So what do I know.. right?
That didn't answer my question though. Why would thick wire be required?
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You're not saying that the OP should be using a Thicker wire then the 24ga Ti he is trying to use Now?
He's trying to get to 0.5 Ohms, right?
Welcome and glad you joined.
Might like to read:
Learn About Vaping Here - Everything Ecigs - From Beginner To Advanced
http://www.ecigarettedirect.co.uk/a...tte-college-guides-tutorials-information.html
One Stop Reference Shop For New and Experienced Vapers
http://guidetovaping.com/category/e-cig-beginner/
May 2016 / Smoking Vapor
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nice guide. I'm used to having to build 0.50 or higher. Finally said screw this and bought an rba. My coils weren't rebuild friendly. lol.
If you re-read my post I gave example about resistance and Ohms... the resistance from NI and the other metals are quite different. To get the Ohm range, you need the gauge that will do it.
Check the calculator:
Coil wrapping
SS 316EL @ 28Gauge for 0.2ohm, 3.5mm : Number of wraps = 1.27
Sorry but a 1.27 wrap coil is not going to work all that great.
You'd need to go for something around 12+ wraps to work in these cartridges and you'll be in the 1.5+ ohm range and the OP wants a 0.5 range.
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Thanks,
It took me a few tries but sorted it out, found what really did work well, and it takes me just a few minutes to rebuild my cartridges now...
But lately, I've been using my RTAs more and more, but still enjoy my cartridge tanks quite fine every now and then, while my wife and daughter have tanks that takes them anyways... it's much simpler for them to simply switch cartridges as they don't build... plus, much easier to carry a spare cartridge and switch should it die while away from the work desk...
No point in aiming for a specific resistance. Using the gauge and number of wraps that fits the coil well and gives the right coil mass for the heat flux one wants is the way to go. Focusing on the resistance simply isn't prudent with the vw mods of today.
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