Rayon wick, better flow, flavor, saturation and Nic Hit!

[HolmanGT]

Dusty_D,

I would venture an opinion that the 28 GA will outperform the 26 GA.

The rational is two coils with the same resistance and the same applied power the one with the most mass will take longer to heat up and cool down. I think from the lessons you folks gave me about letting go of the button first thingy that a lot of the crud build up is during the heat up cool down cycle.

Unless you intend to go cloud chasing at 30 watts (which does appeal to me) I would stick with the 28 GA or even 30 GA. 30 GA is almost instant on off.



Also I would try a helical coil apposed to a compressed coil with each wrap about a half the diameter of the wire away from the last turn kind of thing. I have convince myself that the rayon works better that way. In the helix mode the juice is not forced out the ends of the coil but allowed to escape over the length of the coil. Consider a tight coil as a pressure cooker the liquid will steam at a higher temperature because it is trying to buck the entire length of the coil building pressure to escape at the ends of the coil.

I have seen some "Tripper" builds and he used ribbon wire to enhance the venting at the end of the coils by slightly overlapping the ribbon wire creating the equivalent of a piece of pipe. It was cool to watch and "Tripper" can make anything look and sound cool. He would probably vape Jell-O if he thought it would make a good video.

PS - I don't think "Tripper" ever goes below 30 watts. It must be a genetic thing I think his father worked on the Manhattan Project.

 

[Dusty_D]

Dusty_D,

I would venture an opinion that the 28 GA will outperform the 26 GA.

The rational is two coils with the same resistance and the same applied power the one with the most mass will take longer to heat up and cool down. I think from the lessons you folks gave me about letting go of the button first thingy that a lot of the crud build up is during the heat up cool down cycle.

Unless you intend to go cloud chasing at 30 watts (which does appeal to me) I would stick with the 28 GA or even 30 GA. 30 GA is almost instant on off.



Also I would try a helical coil apposed to a compressed coil with each wrap about a half the diameter of the wire away from the last turn kind of thing. I have convince myself that the rayon works better that way. In the helix mode the juice is not forced out the ends of the coil but allowed to escape over the length of the coil. Consider a tight coil as a pressure cooker the liquid will steam at a higher temperature because it is trying to buck the entire length of the coil building pressure to escape at the ends of the coil.

I have seen some "Tripper" builds and he used ribbon wire to enhance the venting at the end of the coils by slightly overlapping the ribbon wire creating the equivalent of a piece of pipe. It was cool to watch and "Tripper" can make anything look and sound cool. He would probably vape Jell-O if he thought it would make a good video.

PS - I don't think "Tripper" ever goes below 30 watts. It must be a genetic thing I think his father worked on the Manhattan Project.

Good suggestions. I'll give a 28 helical coil a try next. Would you recommend an angled coil or a coil perpendicular to the KFL deck?

 

[Tbev]

When you build a coil you build it to a specific intended resistance, if your building a low ohm build 26ga wire allows you to get more coil and contact area on your wick than 28ga or wire smaller in size,

 

[Dusty_D]

When you build a coil you build it to a specific intended resistance, if your building a low ohm build 26ga wire allows you to get more coil and contact area on your wick than 28ga or wire smaller in size,

I'm shooting for around 1.2 - 1.3, single coil, so you're suggesting 26 would be better because of more wraps?!

 

[nosmoke12]

Welp, I'm gonna make a trip to sallys beauty shop tomorrow to hopefully pick up some of this rayon stuff. I've read a lot of this thread and watched phils video on it recently. Also due to me doing a...not so great build in one of my kayfuns (30gauge microcoil over 3/32 came to 2.8...waayyyy to high) and getting an all too familiar cotton taste that isn't going away easily, although maybe I just used too much cotton, idk I don't think I've practiced with it enough on my kayfun. But I'm gonna vape the little juice I put in tonight (HHV heavenly tobacco) even though it tastes like cotton..and go get some rayon and rebuild!! Probably gonna do a 5/64 micro with my 30gauge and hopefully get it around 1.7-2.4~ however many wraps that may take. Thanks to everybody who has done so much experimenting and reviewing!!

 

[mnealtx]

8 wraps will give you 1.9 ohms, 9 gives 2.1 ohms...

 

[HolmanGT]

Good suggestions. I'll give a 28 helical coil a try next. Would you recommend an angled coil or a coil perpendicular to the KFL deck?

I would probably go with parallel to the deck only because I have not tried the pyramid (if that is what you are talking about). However I have been thinking about the pyramid (bent in the middle) because you don't have to bend the wick as much at the exit points of the coil and it gives a little more gap between the coil and the air port. I sometimes have trouble when the coil is to close to the air port. I get erratic air flow at times.

I have also been wanting to try it because that is the way Kanger coils are built not with a bend in the middle but they wind a helical coil starting at one end of the wick then a long single wind over the air hole and then finish with the helix again. I don't know if that is the best way to do it but I have a hunch that some Engineer at Kanger has given the coil formation a lot of thought.



PS - I place the parallel coil on the diagonal over the air hole in the Kayfun. IT makes it easier to keep the wick ends to one side or the other of the juice port.

 

[Tbev]

Very cool chart!

 

[nosmoke12]

8 wraps will give you 1.9 ohms, 9 gives 2.1 ohms...

That chart is awesome!! Gonna have to save that, thanks man!

 

[mnealtx]

Y'all are welcome... I saw it linked from here on ECF a while back and saved it...

Here's an excel spreadsheet that will give amps/watts for coils on a Provari - set up to where, if it's above the amp or watt limit, it won't return a reading. Atomizer ohms is a dropdown menu ranging from 0.3 to 3.0 ohms.

 

[Jerms]

I've used this calculator a lot, made by an ECFer..

http://tomcatt2.com/pvapps.html

 

[Cuando]

Don't forget Steam Engine! Coil wrapping | Steam Engine | free vaping calculators

 

[GeorgeWachsmuth]

I use a pretty cool Android app......Vapers Toolbox.....

 

[Moonbogg]

For what its worth, I compared my boiled rayon to the un boiled rayon by feeling them between my fingers. I won't vape un boiled rayon anymore, but thought i'd share that the boiled rayon is much smoother and softer. The fibers slide across each other with little friction. The non boiled rayon has a very gritty feel to it with a lot of friction between fibers. No idea why this is but that's how they compare with regard to feeling and texture.

 

[bsoplinger]

For what its worth, I compared my boiled rayon to the un boiled rayon...

I assume this is the CelluCotton (CCr) that you can get at Sally's?

Sent from my Nexus 7 using Xparent Purple Tapatalk 2

 

[ed101z]

For what its worth, I compared my boiled rayon to the un boiled rayon by feeling them between my fingers. I won't vape un boiled rayon anymore, but thought i'd share that the boiled rayon is much smoother and softer. The fibers slide across each other with little friction. The non boiled rayon has a very gritty feel to it with a lot of friction between fibers. No idea why this is but that's how they compare with regard to feeling and texture.

Good notes Moon. Does the fibers move and spread apart in the water during the boiling? Or did you bring the water to a boil; take it off the heat and let the Rayon sit in it undisturbed? Since boiled water reaches 212 degrees, letting it sit for awhile should be sufficient in removing any type of dyes, chemicals, oils (Not that I taste any in Un Boiled Rayon. It tastes perfect straight out of the box, and into the coil.)

Is it easier to wick through the coils? I had to rebuild my first two builds earlier today because I had underestimated the amount to use. Kept getting 'Popping'. When I looked at the coils during the popping, it was obvious I didn't have enough Rayon because I could see a gap between the Coil and Rayon. The Rayon actually shrunk a little. But I used more Rayon on build #3, and the popping went away.

 

[WideO]

Is it easier to wick through the coils?

After my test of boiling some and blowing it dry with a hair dryer, I noticed that the volume of the string had decreased, meaning, it looked quite a bit thinner than straight out of the box. That might make it easier to estimate the amount to use, but on the other hand - and this is just a quick test with a couple of coils - it seemed to lose a bit of performance. For me, I prefer the unboiled version.

 

[Dusty_D]

Welp, I'm gonna make a trip to sallys beauty shop tomorrow to hopefully pick up some of this rayon stuff. I've read a lot of this thread and watched phils video on it recently. Also due to me doing a...not so great build in one of my kayfuns (30gauge microcoil over 3/32 came to 2.8...waayyyy to high) and getting an all too familiar cotton taste that isn't going away easily, although maybe I just used too much cotton, idk I don't think I've practiced with it enough on my kayfun. But I'm gonna vape the little juice I put in tonight (HHV heavenly tobacco) even though it tastes like cotton..and go get some rayon and rebuild!! Probably gonna do a 5/64 micro with my 30gauge and hopefully get it around 1.7-2.4~ however many wraps that may take. Thanks to everybody who has done so much experimenting and reviewing!!

Your best bet, twisted 30g.

I use Steam Engine for all my Ohms, coil etc needs.

 

[Bunnykiller]

You've got it wrong, 26 gauge is thicker than 28. Gauge comes from the number of things, all of the same size, that fit into some standard sized opening. Probably could wiki the exact standard but its unimportant. It just makes it easier to understand and perhaps remember that lower numbers means bigger

Sent from my Nexus 7 using Xparent Purple Tapatalk 2

Dusty was asking about different wire ga, but keeping the same ohms, thus more wraps are required at a lower gauge, and therefore more watts are required to heat the thicker wire in the same time frame....

so yes Dusty 26 will more than likely need to see 12+ watts to maintain the vape quality of a thinner ( higher ga) coil

 

[Bunnykiller]

8 wraps will give you 1.9 ohms, 9 gives 2.1 ohms...

if you have Excel this works pretty well too

View attachment vapecoils.xlsx