Tight vs. Loose coils

[Decidion]

For quite awhile I had been making my coils loose, or in other words, making them so that each coil had a very small space between them. Then I watched some videos of others making their coils very tight so that each wrap was in contact with the previous/next wrap.

So I started making my coils tightly wrapped as well.

What I noticed is that when I replace the wicking and give it a good dry burn (with tightly wrapped coils), that the bottom half of the coils does not glow as brightly as the top half. I also observed that the wire ends take off, from the coil to the post, from the top of both ends of the coil. Knowing that electricity travels the path of least resistance, I am thinking the top of the coil is getting hotter than the bottom... it is not uniform.

My conclusion is that there seems to be two ways to avoid this... 1) insure that one wire lead from the coil comes off the bottom (of the coil) and one off the top; or 2) go back to wrapping the coils loose so that the electricity is forced to go through the entire coil, and not "jump" from one coil to the next coil.

What are your experiences/observations? This may be too trivial for a lot of us to be concerned about, but I'm sure there are some of us hard core enough to think about it.

 

[Filthy-Beast]

When I wrap coils I always get one going from the top the other the bottom. when do my next dry burn I'll check. but when I do the initial heat up to squeeze the coil it appears to heat evenly.

Edit: I just checked and I get an even glow top and bottom, the coil is only two days old however.

 

[DoogieTony]

Try "bumping" your coil a bit. Sometimes my micros don't fire evenly at first so I'll squeeze the coil with pliers and move it slightly until it lights up uniformly.

 

[Decidion]

That may have been part of it... I think the coil I was testing was a couple of weeks old. I'll also try some bumping

 

[bushmaster]

Jeff, I've always had the left leg under and the right leg over(as I look at the posts)whatever I'm wrapping around because I'm assuming that's the way the RM2 is designed--with the left hole below the rim and the right hole above the rim of the atty. That's the same way I feed the legs into the holes.
Anyway, I have not seen my coils behave as you described. Just my two cents worth.
Roger

 

[supertrunker]

i don't make microcoils, so no benefit to me of the wires touching. i use huge silica wick.



Those are dual 32g's at 1Ω. Micros and nanos seem to do much better with the coils each touching the preceding one. I don't think that how they are fitted matters much because if it did we'd have heard a lot more about it when the RM2 changed posts such that one is now higher than the other and the holes are smaller.

T

 

[Jazzi Mike]

I like em tight. Haha

Anyhow, I've been wrapping normal coils and just pushing all the wraps together. It looks like crap, but vape just as good as a micro. This way, I can still use silica.