What diameter silica wick is equal to the diameter of cotton yarn?

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Flt Simulation

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Folks ...

For my kayfun Lite Plus, I have been making a simple single coil using 28 AWG Kanthal wrapped on 2.4mm (3/32") rod ... Usually 10 wraps = 1.7 ohm

For the wick, I pull a double piece of cotton yarn through the coil using a piece of wire to pull it though (see photo below).

For a change, I thought I might buy a piece of silica wick and use that instead of the cotton yarn.

My question is what diameter silica wick would be about the same diameter as the cotton yarn? ... Silica wick can be purchased in 1, 2 and 3mm diameters (I am thinking 3mm might be the correct diameter).

I would like the silica wick to be the same diameter as the cotton yarn so I can pull a double piece of it through the coil without it being too loose fitting inside the coil.

BTW ... I am thinking that silica wick would last longer than cotton yarn before needing replacement (also can be dry-burned too without burning up like cotton)

Thanks :)


Coil2.jpg



The wick shown below is obviously too long at this point, but gets cut shorter later on ...
Coil3.jpg



Coil4.jpg



Coil5.jpg
 
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Flt Simulation

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FYI .... I just talked to Sean at 'LightningVapes' here in Florida.


He was nice enough to take the time to make up a 28 AWG coil on a 3/32" rod (like the coil I use) in order to see which braided silica wick (when doubled) would fit best into the coils.

He said the doubled-up 2mm Ekowool Braided / Hollow wick worked the best when pulled through the coil with a piece of wire (like my photo above) ... so that's what I am ordering.
 
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Flt Simulation

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I used to use cotton yarn peachs and creme. On a 3/32 I.D I folded it in half then fished it through making it 4 strands through the coil.

What I do too ... Now I am going to do the exact same thing using 2mm Ekowool braided silica

It's the same thickness as the Peaches and Cream cotton yarn
 

Flt Simulation

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Well, I just got some 2mm braided / hollow Ekowool in the mail today.

As I mentioned, I want to replace the cotton yarn with Ekowool in my Kayfun.

The doubled 2mm Ekowool would not pull through the coil made on a 2.4mm (3/32") rod, so I made a coil which was slightly wider in diameter using a 2.8mm (7/64") rod.

I was able to pull 2 pieces of the Ekowool through the coil as I did before using cotton yarn (photo below shows using cotton yarn, but it's works the same using 2mm hollow Ekowool).

Anyway ... I am real happy with the outcome ... The vape is the same as with the cotton yarn, but the Ekowool is going to last much much longer between re-wicks.


Coil2.jpg


Coil3.jpg
 
I'm glad you posted this. I was watching a video and the guy used a 4-40 machine screw to make his coil for a T3s and he used 1mm silica, doubled over twice (4mm) then he placed 2 flavor wicks on top of 1mm silica. So I decided to buy 2mm silica and only fold it over once and use one piece of 2mm instead of the 2 pieces of 1mm like in the video. The coil looks great because of the machine screw but when I used the coil set up, I have to hit it twice in secession to get a decent hit. I was thinking that the wick is too thick. The 4-40 O.D. is .112 in. so the coil I.D. is probably .100 - .105 in. I'm new to this coil building thing so I'm not sure what the problem is. Should I remove the flavor wicks completely or just make them smaller? It appears, by looking at yours that the main wick is OK, I can slide it back and forth with just a little resistance. Not sure what to do.
 

Flt Simulation

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Personally, I wouldn't worry about some kind of "flavor wick" ... What is a flavor wick supposed to do that any other wick won't.

If your going to use silica (or cotton yarn for that matter), just get the correct thickness of it so you can pull a double piece of it through your coil like what I posted in those photos above.

Works great!
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Should pull through will just a slight amount of resistance ... but not too tight or sloppy loose either.
 
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