How to make 2.2ohm coils???
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It'll depend on what type & gauge of resistance wire you have.
Most suppliers will tell you the resistance of the wire.
I've got some Kanthal A-1 32awg that is rated 45.3Ω/meter, or .05Ω/CM. Can use info like that to calculate how long your wire would need to be.
Most suppliers will tell you the resistance of the wire.
I've got some Kanthal A-1 32awg that is rated 45.3Ω/meter, or .05Ω/CM. Can use info like that to calculate how long your wire would need to be.
ohms is dictated by wire size or gauge when compared side by side in the same length.
for example(just for example not actual) 2 inch of 32 will be 2.4 ohms 2inch of 28 will be 1.8 ohms
as every atomizer is different - in the distance to the center post, how fat you wrap the wick etc.
and this will all dictate to a certain extent the final resistance of your build.
try a 32g 5 wrap coil and that should be around 1.9 -2.4 ohms range. adding another wrap will increase the resistance taking on more off will drop it.
for example(just for example not actual) 2 inch of 32 will be 2.4 ohms 2inch of 28 will be 1.8 ohms
as every atomizer is different - in the distance to the center post, how fat you wrap the wick etc.
and this will all dictate to a certain extent the final resistance of your build.
try a 32g 5 wrap coil and that should be around 1.9 -2.4 ohms range. adding another wrap will increase the resistance taking on more off will drop it.
actually, if you follow this you will have a lower resistance coil (not that much though, maybe 2 ohm)
this is because the resistance is the length of wire BETWEEN negative/positive posts X resistance per unit length of the wire you are using (a function of the gauge and whether you are using kanthal or nichrome)
BUT it's almost impossible to wrap a coil without a little wire 'hanging' out from the posts, you always loose some wire (for example, I tend to wrap a complete loop around the positive post before tightening the screws, anything there really doesn't add to the resistance)
So if you start wrapping with, say, 2 inches of wire, you actual length between + / - maybe, say, 1-3/4 (or if you are me even 1-1/2 or less)
It seems to be a widespread misconception that the resistance has to do with the # of wraps themselves. Obviously 4 wraps on a 1mm wick can't be the same as 4 wraps on a 2.5 mm one
it really is that easy, but you may end up with more wire and have to make too many wraps. if using a VV or VW device i prefer to tailor the wraps to the atty not the resistance.
most of the time the less wraps you can the better the response time on the coil. think about an electric stove. with all the coils in the heating element. it has to slowly work its way around all of them it never heats up all at once.
plus there is the added problems sometimes, too many wraps and coil spacing and proper even heating can become trickier to accomplish.
inch for inch the lower the gauge of wire the more wraps needed for the same resistance. but as the gauge drops the wire becomes fatter and will heat more area wrap per wrap.
with rba's you can methodize and plan and come out exactly where you want, or just wrap a coil and see where you land, this is the great thing about them they lend themselves well to everyone's style of doing things.
most of the time the less wraps you can the better the response time on the coil. think about an electric stove. with all the coils in the heating element. it has to slowly work its way around all of them it never heats up all at once.
plus there is the added problems sometimes, too many wraps and coil spacing and proper even heating can become trickier to accomplish.
inch for inch the lower the gauge of wire the more wraps needed for the same resistance. but as the gauge drops the wire becomes fatter and will heat more area wrap per wrap.
with rba's you can methodize and plan and come out exactly where you want, or just wrap a coil and see where you land, this is the great thing about them they lend themselves well to everyone's style of doing things.
Mine is right in between 2.1 and 2.1ohms, I'm using 32awg Kanthal-A1 and there are 5 wraps around my 500 SS mesh.
It's a my best setup so far, vapes VERY smoothly, great flavor, awesome vapor, mild throat hit...perfect for me. It's being used in an AGA-T2 on an eVic.
It's a my best setup so far, vapes VERY smoothly, great flavor, awesome vapor, mild throat hit...perfect for me. It's being used in an AGA-T2 on an eVic.
in general, if you like to take quick, hot drags like a cigarette, less wraps
if you like to vape like a pipe, colder, longer drags, more wraps
I tend to use 3 to 5 wraps for Genesis style RBA for the pipe effect
For my phoenixs though I have a method set with 32 kanthal, 2/3 wraps, those hit quick and hard
both will give you a good amount of vapor
Your coil in that pic is wrapped very badly by the way. I don't know what kind of reading you got from it but I wouldn't trust it whatever it was. The coil can short anywhere along the length of it, it can short on the SS wick or by touching another part of the coil (which yours seems to be doing). Any short will give you lower resistance because part of the coil is being left out of the circuit. The coil should be wrapped close to the wick but not too tight, also the coils should be evenly spaced and not touching each other. Don't feel bad, all of us made coils like that starting out, it takes a bit of practice but gets easier as you go. Some people wrap the coil on a drill bit or similar of the proper size, then once they have it setup nicely they slide the wick through it into the tank. You might want to measure your wick before you roll it, make a note of the size and the resulting wick. That way when you get one you really like its easier to duplicate it. If you get too frustrated with it, give it a rest and try again later. It's just one of those things that after lots of trial and error it all suddenly clicks and almost becomes second nature. It's worth it when you finally get there.
Umm lets see...maybe a little larger. The wick is right around (maybe a little under) an 1/8"...maybe 3/32".
My bad, but don't be surprised if your first couple look similar. What mod are you running this on?
thats funny cause this link was in another post and when i got to the website that was the first thing i said. look at that coil what a train wreck.
If i use a provari i can use it to get any ohm coil i want down to less than .1ohm . I just connect both ends of the unwound wire to my rba and slide it in and out of one of the terminals untill i get my ohmage. Than coil it on the ss wick cut wire just after where the screws were tightend connect the ends and i have my ohmage.
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