Tutorial for Building Coils on a Drip Atomizer

Hello everyone. It’s been a long time since I last updated. To be honest, I haven’t had much time to organize vaping-related materials. Recently, quite a few new users have gotten into vaping, and many of them have had questions about certain atomizers. So going forward, I’ll regularly share some coil-building and wicking methods for atomizers, along with my own experience, for everyone’s reference. I’m not a guru—just sharing some basic experience. If anything is wrong, I hope everyone can discuss and exchange ideas. So let’s begin today’s topic: the Uptank RTA tank atomizer.

First, let’s take a look at the general structure of the atomizer:

The inside is very simple and easy to understand. I’m pointing at both sides with a sharp tip—these are the directions where we need to install the coils. Later we’ll look at the finished result. Be sure not to connect them in the wrong positions.

The coil should sit above the airflow hole. There’s another important point: the heating wire must not touch the sides. Be sure to leave some space, just like in the image above. Otherwise, it will short-circuit. If you’re using a regulated box mod, it’s usually not a big issue because box mods generally have short-circuit protection. But if you’re using a mechanical mod, you really need to pay attention to this. Next, let’s continue and look at how to install the cotton. Many people ask how to thread the cotton through properly. What I usually do is prepare an appropriate amount of cotton, roll it gently in my palm until it forms a strip, then twist one end tightly as shown in the image above and slowly thread it through the coil. (The result after threading the cotton is shown below.) After threading it through, how much cotton should we cut off? Based on my experience, trim it to the position of the gold-colored base. Then loosen up the cotton tails a bit. Don’t leave the tails too thick, because if they are too thick, the e-liquid won’t wick fast enough during use and you may get dry hits. But don’t leave too little cotton either, because too little will create gaps and cause leaking. What’s the exact right amount? That’s honestly a bit hard to explain—it mostly comes down to experience. The image below shows the kind of result I consider just right. You can pay attention to the circled area. This is the wicking port for the atomizer tank, where the e-liquid enters the cotton. If you stuff too much cotton here, it may not leak, but the wicking will be poor and you’ll easily burn the wick. If there’s too little, it will leak. This is what a just-right result looks like: it doesn’t seem to have gaps, but it’s not packed too tightly either. That gives a better overall result. At the very least, the e-liquid will flow more smoothly when vaping. Finally, let me show you the finished result, and also note that when refilling, you should close the airflow hole first. Without internal air pressure balancing things out, the e-liquid can easily flow straight through and leak out. So what should we do? First, when refilling a tank atomizer, it’s best to close the bottom airflow hole, then unscrew the top cap and fill with e-liquid. After filling, close the top cap again and then reopen the bottom airflow hole. This can help avoid unnecessary leaking.

This is my first time writing a tutorial, so the writing may be a bit messy. If there’s anything you don’t understand, feel free to leave a comment on the website.