Phoenix/Chalice Vertical Cotton Wick Setup
- Thread starter hildicat
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I switched over to cotton yarn for my last build ... still this basic tutorial to start ... but of course a threaded shaft instead of drill bit, and yarn instead of cheese cloth ... but the final product used knowledge from this thread.
i am a 100% cotton yarn enthusiast . let me know how u make out
Been enjoying it so far. This particular wick/coil is about a week and a half old and still vaping great. I usually rebuild once a week, but haven't had time ... but it's holding up. Just wish it was a little easier to get the old cotton out and new in ... but then again I can usually twist a coil in about 5 minutes. Good thing it's easy to do, since I'm ordering 5 of them in the latest CoOp.
Been enjoying it so far. This particular wick/coil is about a week and a half old and still vaping great. I usually rebuild once a week, but haven't had time ... but it's holding up. Just wish it was a little easier to get the old cotton out and new in ... but then again I can usually twist a coil in about 5 minutes. Good thing it's easy to do, since I'm ordering 5 of them in the latest CoOp.
I must be doing something terribly wrong... Couldn't get more than a day out of a cotton yarn wick and switched back to silica... Vaping Boba's... Tried loosening my coils and kept getting hot spots. Most I ever got was 2 days before the burnt, fishy flavor set in.
What was the coils Ohm's and how much voltage were you applying.
Tried anywhere from 1.7 all the way up to 3.4 ohms, adjusting voltage to stay at my 8 watt sweet spot.
8 Watts is pretty hot, sounds like you are scorching the cotton. I'm running my cotton wicks at ~6.5W and having no problems. When I go past 7W I get that burned cotton smell. I've found that more wraps to spread out the heat over a larger area of wick at a lower wattage gets me as much vapor as fewer wraps at a higher wattage without over heating the wick. It's a more efficient thermal transfer to heat a larger area less than a small area a lot. example: a six wrap 2.8Ohm coil at 4.2V (6.3W) is better than a three wrap 2 Ohm at 4V (8W) for vapor production.
This is more for me than you I've been working on this equation for a few days now.
Thought experiment: Take a 10" skillet and heat it to 220degF. At the same time take a 6" soup pan and heat it to 440degF. Add 8oz of water to each pan. Which pan would boil the water away the fastest.
Excuse me I have some experimenting to do.
Edit: I changed the temps a bit, The 10" 250degF pan finished 30seconds before the 6" 500degF pan. Success ,Half the energy, same amount of vapor production.
I know that the 10" ( 78.5398 in^2) pan has ~3 times the surface area of the 6" (28.2743 in^2)... call it proof of concept.
This is more for me than you
I've been working on this equation for a few days now.Thought experiment: Take a 10" skillet and heat it to 220degF. At the same time take a 6" soup pan and heat it to 440degF. Add 8oz of water to each pan. Which pan would boil the water away the fastest.
Excuse me I have some experimenting to do.
Edit: I changed the temps a bit, The 10" 250degF pan finished 30seconds before the 6" 500degF pan. Success ,Half the energy, same amount of vapor production.
I know that the 10" ( 78.5398 in^2) pan has ~3 times the surface area of the 6" (28.2743 in^2)... call it proof of concept.
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8 Watts is pretty hot, sounds like you are scorching the cotton. I'm running my cotton wicks at ~6.5W and having no problems. When I go past 7W I get that burned cotton smell. I've found that more wraps to spread out the heat over a larger area of wick at a lower wattage gets me as much vapor as fewer wraps at a higher wattage without over heating the wick. It's a more efficient thermal transfer to heat a larger area less than a small area a lot. example: a six wrap 2.8Ohm coil at 4.2V (6.3W) is better than a three wrap 2 Ohm at 4V (8W) for vapor production.
This is more for me than you
Thought experiment: Take a 10" skillet and heat it to 220degF. At the same time take a 6" soup pan and heat it to 440degF. Add 8oz of water to each pan. Which pan would boil the water away the fastest.
Excuse me I have some experimenting to do.
Edit: I changed the temps a bit, The 10" 250degF pan finished 30seconds before the 6" 500degF pan. Success ,Half the energy, same amount of vapor production.
I know that the 10" ( 78.5398 in^2) pan has ~3 times the surface area of the 6" (28.2743 in^2)... call it proof of concept.
I spread my 2.4 ohm coil out and lowered it to 3.9 volts and getting nice flavor at 6.3 Watts. I'll have to see if my cheesecloth wick lasts longer now... Hope so.
While this is completely true from what my testing has shown as well, also take into account the amount of wicking material used. My sweet spot is also around 8-9 watts, not for vapor production but for flavor in my DIY juices. Some don't shine unless they reach a certain temperature. I use about 5mm of cotton wick in my phoenix rba, vertical coil, with the wick almost touching the bottom of the drip tip. This allows insane amounts of liquid to be stored in the wick, around 1ml (20-40 drops depending on your dropper) with an additional 10-20 drops in the cup for about 1.5ml total. It's basically turned it into a rebuildable carto for how often I have to drip into it. That being said, I've hit this setup with 11 watts and had no problems with any burning or hot spots what so ever. The only time I get any burning on my wick is when I'm not paying attention and let it run a little too dry. You can usually notice the change in flavor, it not being as pronounced, about 4-5 toots before that point. Just some thoughts and experience from how I've been doing it.
8 Watts is pretty hot, sounds like you are scorching the cotton. I'm running my cotton wicks at ~6.5W and having no problems. When I go past 7W I get that burned cotton smell. I've found that more wraps to spread out the heat over a larger area of wick at a lower wattage gets me as much vapor as fewer wraps at a higher wattage without over heating the wick. It's a more efficient thermal transfer to heat a larger area less than a small area a lot. example: a six wrap 2.8Ohm coil at 4.2V (6.3W) is better than a three wrap 2 Ohm at 4V (8W) for vapor production.
This is more for me than you
Thought experiment: Take a 10" skillet and heat it to 220degF. At the same time take a 6" soup pan and heat it to 440degF. Add 8oz of water to each pan. Which pan would boil the water away the fastest.
Excuse me I have some experimenting to do.
Edit: I changed the temps a bit, The 10" 250degF pan finished 30seconds before the 6" 500degF pan. Success ,Half the energy, same amount of vapor production.
I know that the 10" ( 78.5398 in^2) pan has ~3 times the surface area of the 6" (28.2743 in^2)... call it proof of concept.
While this is completely true from what my testing has shown as well, also take into account the amount of wicking material used. My sweet spot is also around 8-9 watts, not for vapor production but for flavor in my DIY juices. Some don't shine unless they reach a certain temperature. I use about 5mm of cotton wick in my phoenix rba, vertical coil, with the wick almost touching the bottom of the drip tip. This allows insane amounts of liquid to be stored in the wick, around 1ml (20-40 drops depending on your dropper) with an additional 10-20 drops in the cup for about 1.5ml total. It's basically turned it into a rebuildable carto for how often I have to drip into it. That being said, I've hit this setup with 11 watts and had no problems with any burning or hot spots what so ever. The only time I get any burning on my wick is when I'm not paying attention and let it run a little too dry. You can usually notice the change in flavor, it not being as pronounced, about 4-5 toots before that point. Just some thoughts and experience from how I've been doing it.
I'd love to see a picture of that. I'm having a hard time visualizing it.
edit: do you mean a 5mm diameter coil?
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5mm is about 3/16" which is next to nothing, barely longer than the coil
5mm of wick will hold about one drop of juice
Must be diameter
5mm of wick will hold about one drop of juice
Must be diameter
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Yea I was referring to the diameter, here's some pics just for the heck of it.
Sorry for the quality. Bad camera.
Sorry for the quality. Bad camera.
I gotta try that! BRB
edit: Nope, didn't work The posts are 5mm apart. I'll try 4mm.
edit: Nope, didn't work The posts are 5mm apart. I'll try 4mm.
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Haven't measured for exact diameter, I just take a cut of my muslin cotton, roll it up, and wrap my coil. That's why I said about 5mm, just going by eye, it fills pretty much the whole gap in between the posts. Then I kinda tilt it for better air flow and so there's no part of my coil that's not in contact with the wick.
This is probably my favorite setup, dual coil is pretty good too for surface area, but it tends to get a bit hot in there. When I was running a DC setup with silica I ended up melting the silicon around the posts a bit. May try another DC with cotton once this one dies out on me, but that'll be in at least a week or two. Although I haven't burnt through any cotton wicks since I got the hang of using them. So not entirely sure how long they'll last. I end up changing it after a week or so regardless just because I enjoy fiddling with it.
Nice work, but how's she vape? ^^; I always drip on top until it's fully saturated and leaks out the bottom (with the top part off so I can see), and keep dripping until it fills the cup about half way. Counting as I do it so I know how much it'll hold. I usually just drop about 10 drops when it gets dry tho outta habit, even if it can hold more. Guessing mine's 4mm too from the looks of your picture, that's about the same spacing I have.
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It vapes very nicely, the taste is awesome. 4.3v at 2.3 Ohms (8W)
Very nice.
Not for the inexperienced though .5mm clearance takes some work to get right. Definitely not for anyone with an unprotected Mod.
Very nice.
Not for the inexperienced though .5mm clearance takes some work to get right. Definitely not for anyone with an unprotected Mod.
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