A few questions for the experts in this forum

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operaghost

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Nov 20, 2013
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Brazil
Greetings,

Recently i bought an eGrip and the rba for it.

I'm now creating my own coils, but with some doubts:

  1. Whats the difference of the diameter of the kanthal wire (eg. 32 mm or 28 mm etc)? - what is the best one for the eGrip rba?
  2. I heard that some people, before using the cotton, let it boil in the water for a few minutes. Why is that? Should i do it with the organic cotton as well?
  3. Is that any health harzard using cotton and kanthal?
Thank you!
 

ddirtyvapes

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Jan 23, 2011
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Portland, ME
I'm thinking of getting a first-time RBA for myself, so I'm just posting to follow with interest. This is about the one area I know very little about, so sorry this post isn't actually helpful at all. Lots of people will know the answers to those questions. Although the answer to #3 is that there are no real significant risks compared to any other vaping set-up, as far as I know. The bigger risk would be from not appropriately testing your builds before using them, IMO.
 
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FireB411

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Jul 12, 2015
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Hong Kong
1. thinner wire (higher swg) has more resistance than the lower swg number. IMHO eGrip RBA can't take thicker wire but if you want more flavour and vapours from it than you might want to use flat kanthal
2. MUJI organic cotton is fine without boiling or any other process but it's a choice (MUJI's big cotton bag is under USD5, it will last you for ages)
3.only if you are dry burning cotton
 
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operaghost

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Nov 20, 2013
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Brazil
1. thinner wire (higher swg) has more resistance than the lower swg number. IMHO eGrip RBA can't take thicker wire but if you want more flavour and vapours from it than you might want to use flat kanthal
2. MUJI organic cotton is fine without boiling or any other process but it's a choice (MUJI's big cotton bag is under USD5, it will last you for ages)
3.only if you are dry burning cotton

Thanks FireB411! do you think a 0.32 mm is ok for the eGrip's RBA to produce a 1.4/5 ohm coil? And thank you again for your help.

I'm thinking of getting a first-time RBA for myself, so I'm just posting to follow with interest. This is about the one area I know very little about, so sorry this post isn't actually helpful at all. Lots of people will know the answers to those questions. Although the answer to #3 is that there are no real significant risks compared to any other vaping set-up, as far as I know. The bigger risk would be from not appropriately testing your builds before using them, IMO.

I enjoy it. But one thing you need to prepared: handling the leak of hell that this RBA produces... always needing to handle the cotton to avoid a lot of leak.
 

thailand

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Feb 15, 2014
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Philadelphia, PA
Greetings,

Recently i bought an eGrip and the RBA for it.

I'm now creating my own coils, but with some doubts:

  1. Whats the difference of the diameter of the kanthal wire (eg. 32 mm or 28 mm etc)? - what is the best one for the eGrip RBA?
  2. I heard that some people, before using the cotton, let it boil in the water for a few minutes. Why is that? Should i do it with the organic cotton as well?
  3. Is that any health harzard using cotton and kanthal?
Thank you!

Hey there! I'm no expert, but I hope I can help answer some of your questions...

First thing first, do you have a multimeter or ohm-meter. You will NEED these if building your own coils!!! SAFETY FIRST!!! We all want you to be safe. I'm sure some of the experts will chime in with AWG and cotton handling as well. I'll be back in a it...dinner time! haha
 

suprtrkr

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Jun 22, 2014
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Essentially, the thinner the wire, the more resistive it is per length, mm or inches, whatever. You need to look at a coil calculator-- well, you don't need to, but they're helpful-- and find the gauge and wraps that will build the ohms you want. I'm not familiar with your mod, but in general, the thicker wire you use, the more mass it has, and the more watts it takes to heat up quickly, or the longer it takes to heat up with the same watts. If a little ramp-up time doesn't bother you, you can build with just about anything.
 
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operaghost

New Member
Nov 20, 2013
4
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Brazil
Essentially, the thinner the wire, the more resistive it is per length, mm or inches, whatever. You need to look at a coil calculator-- well, you don't need to, but they're helpful-- and find the gauge and wraps that will build the ohms you want. I'm not familiar with your mod, but in general, the thicker wire you use, the more mass it has, and the more watts it takes to heat up quickly, or the longer it takes to heat up with the same watts. If a little ramp-up time doesn't bother you, you can build with just about anything.

Wow! Fantastic! Thank you!

And thanks to everybody else, this forum rocks with people like you!
 

suprtrkr

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Jun 22, 2014
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Wow! Fantastic! Thank you!

And thanks to everybody else, this forum rocks with people like you!
Any time, my friend. We try to help. Mostly because we remember when we needed it and are still grateful to those who helped us.
 

Darth Omerta

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Jun 22, 2015
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@suprtrkr has helped me alot and still helps me out quite a bit. The knowledge gained from the experience pool on this site is irreplaceable.

You might want to take a look at @Baditude blog on ohms law;
(14) Ohm's Law for Dummies (Vapers) | E-Cigarette Forum

I did notice you're building 1.4+ ohms but hey the extra info is always a good idea.

I personally have never boiled my cotton but some do, its all preference.

I do use 28AWG(0.32mm) Kanthal all the time. To get into the ohms you're looking for i might suggest a 2.5-3 mm ID for your coils so they dont end up being terribly long.

Not familiar with that RBA, are you building single or dual coils?

Enjoy your build and build safe!
 
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