There is a sense of accomplishment when you are able to do something on your own. A vaper feels accomplished after finally giving up smoking through vaping. Continuing vaping, a vaper would want to shift from entry-level ecig to other devices and vaping setups. Once again, the sense of accomplishment could be felt by a vaper who has decided to work on RBA coil building.
Prepare The Stuff You Need
Just like cooking a dish wherein you need to organize all the ingredients and utensils you need to use, in RBA coil building, you also need to prepare the tools and materials required to accomplish the task.
These tools and materials could include Kanthal/Nichrome wire, drill bit or 14 g blunt-tip syringe, small screwdriver, propane or butane torch for igniting the coil, organic cotton/EkoWool/other wicking material, forceps or needle-nose pliers, nail clippers/wire cutters/sharp scissors and eliquid. An ohm meter or a multi meter is also another required tool in coil building.
Cut Required Wire Length
Cut your Nichrome/Kanthal wire to the appropriate length for wrapping the coil you wish to build. About 3 inches is usually enough.
Wrap The Wire
The wire should then be wrapped around your drill bit or your syringe tip. Ensure that the coils are kept as close as possible to one another as you do the wrapping. This method of coil wrapping is called micro-coil. Other methods can also be done, but this micro-coil is known to produce the greatest vapor production and vapor flavor.
When wrapping around a drill bit, the 14-gauge wire should be used that is about 1/16 inch or 1.5 mm thick. This will provide more predictable resulting resistance. 6-7 wraps around 1/16 inch drill bit will result to roughly 1 ohm when measured with your ohm meter.
Once done with the wrapping, carefully remove the coils from the drill bit or the syringe tip. Make sure the coils are still touching one another.
Work On The Resistance Coil
Do this by pinching the coil between the pliers with light pressure. The coils should remain touching one another. Squeezing too hard could cause the coils to overlap and could result to a short when you finally fire it up with the battery. If the coils indeed overlap, put the coil back on the syringe tip or drill bit and start all over again.
Ignite The Coil
Using the torch, blow fire to heat up the coil until it glows red or orange. Stop when the glow is even or when the color is already bright.
Work On Coil Stability
Put back the coil to the drill bit. This will make your coil stable when you are already attaching it to the RBA post.
Mount The Coil
Mount the coil appropriately on the positive and negative posts of the RBA. While still on the drill bit, get one end of the lead and wrap it around the atomizer center post. Be sure that it is tight. The other end would be wrapped around the negative post on the atomizer deck. Once secure on the posts, remove the coil from the drill bit. Make sure the coils do not get separated from each other so be careful as you do this.
Check The Resistance
This is another step that you should not skip or forget. Most variable devices have the ability to check atomizer resistance, but an ohm meter can also be used. Be sure that the resistance is still within the tolerance of your battery. Drawing too much current from the battery could result to battery failure or explosion. Resistance of 1.1 ohms is already high for most IMR batteries. Batteries with safe chemistry are recommended.
Test The Atomizer
Attach the RBA to the mod and dry fire (without eliquid) to see if the coil will evenly glow from the center. This will ensure that coil is not shorted and is heating evenly. Attach or insert cotton wick to the coil. Trim any excess. Once all is set, prime your wick with your ejuice.