Both rebuildable atomizers and mechanical mods go hand in hand in my opinion, as the preferred way for any advanced vaper to get the most out of their atomizer and the coils inside. Rebuildables are a lot more technical so I will try to go into as much detail as possible without boring you.
So, rebuildable atomizers. These are some of the most advanced products within a vaper's arsenal and if used correctly can provide huge amounts of flavour and vapour production. Please understand that the variations of coils that can be used and how well they are built will depend on how well they will perform.
The first thing to understand is Ohm's Law - (Current = Voltage/Resistance) which is very important to understand and accurately remember. I have inserted the simplest form of this below for your consideration:
Once Ohm's Law is understood, it should make rebuilding a lot easier and simpler.
Rebuilding coils would be the next step to master and as mentioned before there are so many different variations of coils and wire available, that explaining every different version would make this post far too long to read so I will only use a single example for now, with more to follow in the future.
Let's look at 24 gauge wire (AWG) which is my preferred thickness of wire to rebuild. Using this wire allows me to get a great dual coil setup, which measures at around 0.19Ω / 0.2Ω. To achieve this, I would use the 24 gauge wire and wrap it around a 3mm screwdriver bit / coil builder kit 5 times, therefore, making a 5 wrap coil. I have used this method many times and I find it the easiest way to rebuild coils.
Rebuildable Dripping Atomizers would be the easiest to build on due to the build deck being exposed when compared to a non-exposed deck within an RDTA or RTA and they come in all different variations. All RDAs will have some form of airflow option on them, some even being adjustable, allowing you to increase the airflow through the central chamber of the RDA where the coils are located. This airflow will allow oxygen into the atomizer and i find the larger the airflow on an RDA, the longer I can take a vape and the better performance I personally get from the RDA (This can vary person to person and from build to build).
A rebuildable tank atomizer is simply a tank that you have to rebuild the coils for. This type of vaping tank will follow the same procedure of rebuilding coils as an RDA, with the main difference between the two is that the coils and cotton are exposed and within an RDA. An RTA houses the coils within the tank itself. There are different variations of rebuildable tank atomizers, with some made specifically for single coil builds while others allow for dual or quadruple coil builds.
Once the coils are installed, you would need to use a wicking material (usually organic cotton) which would need to go through the centre of each coil/s and there should be wicking slots that the cotton would need rest on for better wicking. Once assembled, only the wick is exposed to the e-liquid in the surrounding tank. The cotton will be saturated with the eliquid and act like a sponge, soaking the e-liquid up and transferring it to the coils by a phenomenon called a Capillary Action. Please be aware that this can take a little bit of time to perfect and if the coils are wicked with too much cotton you may experience dry hits and if the is too little then the tank may leak. All this takes is experimentation and trial and error.
Lastly, and RDTA is a cross of both an RDA and an RTA. The usual design of and RDTA is to have a building deck similar to an RDA, which is located at the top of the RDTA, the coils would be build in the same way and an RDA but there will be be either one or two holes depending on the configuration of the RDTA (single or dual coil). These would be the wicking holes and these are a lot easier to rebuild on as the only thing you have to ensure is that the wick goes through the coil/s and then extends into the holes to reach the bottom of the glass e-liquid tank below. There were also another variation of the RDTA, which used mesh but we won't be getting into that today. If you would like to read up on the use of mesh in the vaping world, check out our history of mesh blog, here.
Mechanical mods are different vapes and are unregulated vaping devices, which come in different shapes and sizes with the most common being a tube mod, housing a single external 18650, 20700, or 20700 battery. They are different to vape pens as they are slightly bigger, these vape mods do not have any form of safety features or computer chips inside and due to this, I would urge you to do some research into how these work before deciding on purchasing one as they may or may not be right for you. Something you should also do before purchasing or using an unregulated mod such as this is making sure to understand Ohm's law as this is a key feature in Mechanical mod use. Due to not have to have a chip inside, however, as well as not always having a safety lock, mechanical mods can be dangerous if used incorrectly.
That being said, mechanical mods are amazing products that can give a huge performance, when used correctly. For the sake of this post, we will discuss the Roundhouse mod by Kennedy Enterprises which is my personal preference of tube vape mod and I found it worked amazingly well, based on my vaping parameters and needs.
The Roundhouse Mod is a tube vape mod that holds a single 18650 battery, inserted by removing the firing button, located on the bottom of the mod itself. The firing button can be easily removed by using a coin on the cross-shaped grooves of the firing button which would allow it to unscrew in an anti-clockwise motion. Once the battery is inserted into the device (positive end of the battery facing upwards and the negative end of the battery towards the firing button) and the button has been screwed back into place this will be ready to use.
Before using a mechanical mod or even screwing in your RDA into the 510 thread at the top of the mod, you would need to check that the build you have inserted into the RDA is safe to use with the battery you plan on using. The easiest way to do this is by test firing it on variable wattage device or ohm reader, in order to ensure the resistance is safe to use and the power output will be within the Amp limitations of your battery.
If the build has the desired resistance (which is safe to use and normally should be no lower than 0.2Ω - 0.3Ω depending on your battery Amperage) then you can screw the RDA into the thread of the mod. When you are ready to use the mod, simply push the firing button which will complete the circuit and the coils will start to heat up very quickly and create vapour.
With a RDA, you will only be able to take roughly 4 - 5 puffs before you will need to re-saturate the cotton with vape juice.
The battery life within an RDA will decrease in time and the peak performance of the mods would be with fully charged (4.2V) batteries. You may notice the device does not perform as well if the batteries are slightly drained, this is due to the power from the battery (how charged up it is) which will determine the voltage going directly to the coils. If you notice a drop in power then it may be due to the batteries not having sufficient charge within them. This is something to notice manually, since there are no power indicator circuits on the mod.