Hi
How does ID of Coil Change a vape
2.0, 2.5, 3.0 ?
It doesn't necessarily. But it also can. Depends.
I build for the RBA I have at hand. Over time and through trial and error I know what works best for me. Coil ID depends on how much space there is on a deck. But bigger is not always better with coil ID's. Surface area plays a role. As does wicking.
And it's all very subjective. My opinion is to try different ID's and find what works best for you. What works for me, or anyone else, likely won't work for you and vice-versa. It comes down to trial and error in finding what is best for each of us.
Others explain this better than I am able.
Coil Diameter Pros & Cons
Coil ID and Taste... is Bigger Better?
Bigger coils vs small coils
VU member Robot Zombie explains it very nicely...
"Coil diameter can make or break your build. Micro, macro, and nano have different heating and wicking properties. What size works best tends to depend on two factors: how much airflow you intend to allow and how much power you're giving to your coils for the amount of surface area they have, though I suppose it really all comes down to the absorbency of your wicking material. So it all matters, really. You have to strike a balance between competing forces in order to get the best performance.
Micro coils are fine if you're building to a high resistance with thinner wire and less airflow - small, low-power, low-surface-area coils. It helps the smaller amount of wire retain heat for bit longer and vaporize more juice in a shorter amount of time. Wicking efficiency is not as much of a concern because you're going to be using less airflow and the amount of heat that the coils can generate/juice they can displace is greatly limited by their size/surface area. They are wicking slower and vaporizing juice slower. Too much wick can easily choke them and keep them from heating up properly, which in turn slows the whole system of interacting forces down - your juice can only wick as fast as the coils burning it allow it to.
Micros can also work well with twisted or claptoned wire at higher power levels. There may be considerable heat and surface area from a numbers standpoint, but because the coils themselves have some passive wicking properties and slower ramp-up times to fight against, a smaller diameter may be more desirable to both decrease ramp-up and minimize spitback. You can get away with less wick because the coils can retain and displace some juice within themselves, which keeps them cooler, watt for watt.
Macros are more effective when building with thicker wire at lower resistances. With all of the heat those coils are capable of generating and retaining across their large surface areas and the amount of airflow necessary to keep them under control, they can sometimes pull juice
from your wicks faster than it can move
through your wicks, so the extra reserve and lower friction afforded by a wide interior diameter is necessary to prevent the coils from overheating.
Otherwise, the heat from the coils may displace juice faster than the capillary action drawing the juice through the wicks can replenish it.
Not only will your wicking material potentially start to burn, but your juice will too. Well-saturated wicks function as a cooling system to keep that from happening. Horizontal width is also a concern. Make them too wide, and the juice may not be able to cover the distance in time to keep the center wraps from overheating. Sometimes, it is more prudent to increase diameter instead of wraps when increasing surface area.
Nanos are a bit special. They're meant to capitalize on the outer surface of the coil. By wrapping wick around the outside of the coil, more wick makes contact with the coil than traditional methods allow for. This offsets the large amount of heat generated as a result of the miniscule ID and allows a tiny coil to deliver heaps of flavor and vapor. In a way, it's extremely efficient, but finnicky.
All that being said it's mostly trial and error that'll get you what you want. That's how I learned, anyway. There's a lot I'm not accounting for here."
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