Kanthal wire and types of coils (II)

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Building your first coil is something you don’t have to be nervous about, and understand that the first step is always the hardest. Once you get the hang of it and acquire more experience things will become much easier. If the first coil you make does not work, don’t give up – try to understand what went wrong and start over. We do recommend you use a regulated device (like an advanced personal vaporizer) with a built in ohmmeter and fuse so you’re always on the safe side. Mechanical mods are slightly cheaper but they don’t offer any type of protection and since you’re new at building coils you might end up sub-ohming without even knowing it.

micro coil DIYFor building your first coil you will need a piece of Kanthal wire and something you can wrap it around. A small screwdriver or a drill bit work best as they are household items easily accessible. If you made some research online, mainly on the vaping communities, you’ve probably heard a lot about loops and expressions like “5/4” or “4/3”. If you don’t understand what they mean, try to imagine a coil positioned horizontally having two continuous loops and the ends of the wire parallel with the ground. This is a 3/2 coil, having three loops on the upper part and two on the lower part. With this in mind you can extend to any type of coil.

To build the micro coil, you will need a calculator to see exactly how many wraps you need in order to reach your desired resistance. We suggest aiming for something around 1.5Ohms, but you can pick your own value, as long as it’s above the 1 Ohm limit. There are plenty of online calculators to help you with this task and there are also mobile phone apps for both iOS and Android.

You will need to keep one end of the wire fixed at one end of the screwdriver or drill bit and with your other hand start wrapping as close as possible to your previous position. Also you need to keep in mind how many loops you need once you made your calculations. When you’re done building your coil you will need to press it gently in order for the loops to be very close together.

If you’re ready with the coil, make sure to trim the excess wire but always leave one side longer than the other because it will help you guide it through the posts. With a pair of tweezers pressing on the coil you will need to oxidize it with a blowtorch until it becomes glowing red. This will take the springiness out of the coil and also get rid of any metallic taste. You are now ready to mount the coil into the posts with one end going into the negative post and one into the positive post. Tighten the screws and make sure your coil doesn’t touch the deck. Cut any excess wire from the ends and start pressing the firing button on your mod. If your coil starts glowing red, you’re on the right track.


Posted by Dave Allan

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Former pack-a-day smoker, I discovered electronic cigarettes back in 2011. Since then vaping has slowly turned into my hobby and my full time job. I’ve tested hundreds of e-cigarettes and mods across the years and constantly used my knowledge and experience to help others make the switch. I’m passionate about technology, I enjoy reading and I love big flavorful clouds.


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