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I just push the tails down and let them lay on the deck like normal, then fill the chimney tube to the top of the coil with loosely fluffed cotton/hemp, you don't want it packed tight but fill it up.
That happened when I pre built some coils for someone and then dry burned them back to back to make sure they worked good. I haven't heard of anyone having problems with melting the insulator with vertical builds. I think $8 plus shipping from vape rev is absurd, so I will just make a new one.
If you look at the threads, one side has wider threads. I read somewhere that using it the wrong way can affect the vape, dont really know how, but like I posted I was having a heck of a time getting a consistant build , so I was looking at all things that might be the reason.
So far still going strong, with no dry hits or gurgles.
My threads are the same. Is yours a clone, by chance?
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My threads are the same as well. It makes no matter which end I screw into the deck. If you're having trouble then you either have a dud or a knockoff.
So I have some new gauges of wire to play with and I have a generic question. What would be different, better or worse compared to the 6/7 wrap of twisted 32 that I currently run in my KFL if I built a 10 wrap of 28 or 26 gauge wire? I usually wrap around a 2.3 mm drill bit..
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are you guys getting more TH, when doing a vertical coil build vs a horizontal build on a KFL?
Experiment dude, and let us know. I have rocked a 5 or 6 wrap of 28g since I got it. I like the 6 better.
Wicking problem solved.
My week with the KFL+ had been dominated by flavorless steamy vapes, moist but otherwise lacking in character. The rest of the time, it alternated between gurgling floods, and throat killing dry hits, also largely flavorless.
That's all in the past now. This evening before tearing out the old build, I paused to take a close look, to see if I couldn't identify the problem. It was a single strand of 2mm hollow Ekowool, wrapped in 0.9 ohms worth of 28ga. Kanthal A1.
I had just drained the tank as well as a syringe can drain a KFL, so everything was as it sat after the last gurgling dry-hit session. I expected to see a dryish wick when the chimney came off, but I saw instead the most picture perfect wick you can lay eyes on, moist and glistening with its burden of juice. (So I put the cone back on and vaped it, but not before studying it closely. Details of that coming below.) It held 4 dry, awful hits worth. They should have been moist and flavorful from appearances.
So here's what I found wrong.
There obviously isn't a feed problem. The KFL was doing it's job. The problem has to be in the wick.
The "wings"of the wick were sodden with juice, but the center part near and under the coil is dry and burnt.
Looking closer, the coil compresses the wick to tightly, starving it. That's easy to solve on the next build. More in a moment.
The second problem was the bend down to the juice deck was far too sharp, further starving the wick. This wasn't so immediately obvious. Earlier, I had vapes out what remained on the wick after taking an initial look. When I put the chimney back on, one leg had come away and stood potting straight out and slightly upward. So I left it pointing up in the chimney. This is the important part. That leg vaped dry. The bent leg in its original position stayed wet, just as soaked and pregnant as before vaping on it. So the bend itself is starving the coil.
Cool. Both problems are easy to solve.
So... I stuffed some 3mm hollow braid with 2.2mm silica. This let's it hold a bit more juice and, more to the point, prevents the braid from bending too sharply. This should solve the kinking problem.
To keep the coil loose around the wick, I wrapped it with a 1mm wire, a straightened big paperclip, to keep a bit of space after I remove it. It also helped stabilize the wick while winding.
Such a long winded story for two completely obvious tips, but I haven't come to the best part yet. Far from being anticlimactic, vaping on it is now a complete joy. All the flavor that had been AWOL before now pops cleanly. I compare it very favorably with the Immortalizer. Maybe just a bit cleaner and crisper. For those of you also into dripping, you'll recognize this as a high compliment. If you wanted to really taste a juice, you dripped it on a freshly rewicked micro-coil. The KFL is doing that well, at least for the half tank that I put through it so far.
Hope this helps those still having problems.
My week with the KFL+ had been dominated by flavorless steamy vapes, moist but otherwise lacking in character. The rest of the time, it alternated between gurgling floods, and throat killing dry hits, also largely flavorless.
That's all in the past now. This evening before tearing out the old build, I paused to take a close look, to see if I couldn't identify the problem. It was a single strand of 2mm hollow Ekowool, wrapped in 0.9 ohms worth of 28ga. Kanthal A1.
I had just drained the tank as well as a syringe can drain a KFL, so everything was as it sat after the last gurgling dry-hit session. I expected to see a dryish wick when the chimney came off, but I saw instead the most picture perfect wick you can lay eyes on, moist and glistening with its burden of juice. (So I put the cone back on and vaped it, but not before studying it closely. Details of that coming below.) It held 4 dry, awful hits worth. They should have been moist and flavorful from appearances.
So here's what I found wrong.
There obviously isn't a feed problem. The KFL was doing it's job. The problem has to be in the wick.
The "wings"of the wick were sodden with juice, but the center part near and under the coil is dry and burnt.
Looking closer, the coil compresses the wick to tightly, starving it. That's easy to solve on the next build. More in a moment.
The second problem was the bend down to the juice deck was far too sharp, further starving the wick. This wasn't so immediately obvious. Earlier, I had vapes out what remained on the wick after taking an initial look. When I put the chimney back on, one leg had come away and stood potting straight out and slightly upward. So I left it pointing up in the chimney. This is the important part. That leg vaped dry. The bent leg in its original position stayed wet, just as soaked and pregnant as before vaping on it. So the bend itself is starving the coil.
Cool. Both problems are easy to solve.
So... I stuffed some 3mm hollow braid with 2.2mm silica. This let's it hold a bit more juice and, more to the point, prevents the braid from bending too sharply. This should solve the kinking problem.
To keep the coil loose around the wick, I wrapped it with a 1mm wire, a straightened big paperclip, to keep a bit of space after I remove it. It also helped stabilize the wick while winding.
Such a long winded story for two completely obvious tips, but I haven't come to the best part yet. Far from being anticlimactic, vaping on it is now a complete joy. All the flavor that had been AWOL before now pops cleanly. I compare it very favorably with the Immortalizer. Maybe just a bit cleaner and crisper. For those of you also into dripping, you'll recognize this as a high compliment. If you wanted to really taste a juice, you dripped it on a freshly rewicked micro-coil. The KFL is doing that well, at least for the half tank that I put through it so far.
Hope this helps those still having problems.
Glad you're back on the flavor train brother. I've been relatively lucky with each and every build since I've had mine (about 4 months). And this is my very first rebuildable. I learned on this thing. Because of this thread alone I can build with the best. I don't believe it can get better than a micro/cotton setup.
Chinabuye has the tobeco clone for $31 plus shipping, mine took a week to get shipped and now i'm waiting. Just a PSA 
2.2mm wrapped with 3mm as the wick and then adding a paperclip before you wrap so it don't choke, how big is the diameter of this coil you wind up with? how many wraps?
It ended a bit over 3mm, uncalibrated eyeball. There was plenty of room between the screws.
I think it ended up at 4 wraps of 28ga; don't recall clearly. I measure out wire with a milliohm meter before wrapping. The meter read 0.724 when I marked it. I kink the wire inside the meter clips to mark the start and end. The mounted coil reads 0.88 on the 510 meter. That's close enough with allowance for over/underwrap, tails, and losses.
You don't need a milliohm meter to measure coil wire this way. The 0.724 ohms is a midge over 40mm, given 1 ohm in 56mm. For other sizes, per ohm:
89mm 26ga
56mm 28ga
35mm 30ga
22mm 32ga
I had an issue with the KFL+ giving me a burnt taste and I figured it was time to change out the cotton wick on my vertical build. After changing it I started to get a burnt taste again. I drained it and soaked the wick and BAM back to immense flavor. I think I may have flooded it or something but now its working better than ever. Love this thing
Chinabuye has the tobeco clone for $31 plus shipping, mine took a week to get shipped and now i'm waiting. Just a PSA
It looks like a better design than what FastTech is selling
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I've found it bubbles better if you tilt it at 90 degrees (stands to reason I think, at least given the assumption that both holes into the evaporation chamber are still covered in juice - less pressure to overcome for the bubble, plus if you've got one of the juice channels pointing upwards, it can go straight).
You don't seem to normally need to do so, but if it seems to be having trouble wicking, like when you've overfilled it, a couple of puffs 'Genisis tilt style' might be worth a try (and it's less hassle than unscrewing the top)...
edit - some discussion earlier in the thread if you search for 'tilt', but I haven't read enough of it to be sure if anyone has come to any firm conclusions...
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I don't ever worry about that stuff. You have some sort of wicking issue if you are having to do anything, GM.
Make sure your wick doesn't impede the channels coming into the chamber. They should be sort of pressed back to the "wall" where the positive and negative terminals sit. I actually get mine good and soaked like RiP Trippers does in his video before I assemble the base back to the chimney section. Once they are full of juice, I find I can press them nicely where I want them to go.
Once that wick around the coil is good an saturated, I find that there are never any dry hit issues. I simply adjust the voltage to control to maximum flavor, but I never get dry hits or feel like my wick needs priming.
Make sure your wick doesn't impede the channels coming into the chamber. They should be sort of pressed back to the "wall" where the positive and negative terminals sit. I actually get mine good and soaked like RiP Trippers does in his video before I assemble the base back to the chimney section. Once they are full of juice, I find I can press them nicely where I want them to go.
Once that wick around the coil is good an saturated, I find that there are never any dry hit issues. I simply adjust the voltage to control to maximum flavor, but I never get dry hits or feel like my wick needs priming.
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