I'm a bit behind on my reading, forgive if you've gotten it solved. I had a similar issue initially until I got the wick density figured out. If you're not stretching the wick like JeremyR shows in his video, its pretty easy to use way too much wick than necessary. Just use a lot less. Basically keep reducing until you get a weird metallic taste after initially starting out with everything being good. You've now found the point where the density of the wick after the last of the air between the rayon strands works out (half hour or so after you first wet the wick) is too low and the top of your coil ends up dry which is what produces the metallic or burnt taste. Wick with a bit more than that and you should be seeing all the good things folks are talking about in this thread.
If you use way too much you end up never really wicking any juice to the center of the coil. But rayon wicks so well that just what's in the edge, at the shoulders, is able to provide more than enough juice to keep the entire wick moist enough to prevent really dry hits. But the dryness at the center is what's causing the gunk buildup so quickly. At least it was the case for me.
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I don't think it's sorted, yet....let me go through how I do it.
Spiral coil made out of titanium wire, wicked with rayon.Thoughts on spiral coils + rayon wicks, anyone?
bsoplinger said:I'd say more than double the amount necessary.
I've pretty much come to a solid method for myself with the cc style rayon:
Take just over 1/3 to 2/5th the width of the snake. Pull maybe 3". Straighten between my thumbs and index finger.
Twist the tips and insert into coil. If coil starts moving, I stretch the rayon a little at a time until it fits thru without pulling the coil, but just squeaking thru.
Has produced perfection repeatedly for me.
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Rayon evangelists, bless their hearts…I guess. As someone else pointed out on this thread, the first hit is always free.
After a number of hits, near-misses, and obvious screwups—serious gunking & crud buildup inside the coil, clean elsewhere—I'm wondering if spiral coils would better suit rayon wicks, at least for the thumb-fingered. Like me.
I've only ever made, or tried to make, the sort of close-scrunched microcoils you see proudly displayed in YouTube how-to videos. Whatever else Rip Trippers is or isn't, you gotta admire those steady hands. The guy could be a dentist or a watchmaker, or even a rabbi (supposing rabbis still perfrom circumcisions). The beard would suit.
Digressing. Thoughts on spiral coils + rayon wicks, anyone? Save me having to rediscover the original stone wheel, except with whitewalls?
Spiral coils are ideal for higher power and limited airflow. I use spiral coils in my EVOD clearos at around 8W. I used to get "off hits" when I used tightly scrunched coils as they seemed too hot and would foul the wick. Once I opened up the coils it was perfect for me. Spreading out the coils allows better heat control for limited airflow devices IMO. It also exposes more wick to the heat source vice consolidating it in one place.
Thanks! You may have given me the clue I need (fingers x-ed). I'm not into dripping, sub-ohming, cloud-chasing, lung hits etc. etc. I still prefer a tightish draw, about like the average not-labelled-light cigarette. Between spiral coils and JeremyR's comment re: shutting off the power a moment or 2 before you finish a pulllike, who knew? No one told methis looks like a promising avenue for further investigation. Then maybe I'll be able to brag about the state of my wickafter I've run x ml through it.
I wouldn't vape zippo rayon, no telling how it was handled.