Been trying to use the steam engine calculator to make my first nickel build in my aromamizer and its coming up with some ridiculous numbers. Like 44 wraps on a dual coil build. What am I missing here?
How do you figure out Ni200 ohms
- Thread starter Mden89
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Nickel wire is not a resistance wire like kanthal. The way TC mods work is different that straight wattage though, so a much lower resistance works fine, as the power output is pulsed to maintain temp.
So I can wrap the coil as little or as many times and I want and the resistance will be the same?
The resistance will still vary based on gauge of wire, number of wraps, and diameter of the coil.
But, with Ni200 you will be running extremely low resistances, ie .05-.2 depending on what resistance ranges your mod will handle. For example a dual 2mm diameter, 30awg build @ .07 would be around 9 wraps each.
How can I calculate a target resistance then. I want to know what I'm building.
Go to steam engine, set it to Ni200, input your gauge of wire, then increase the diameter of the coil to something around/above 2mm, depending on what you prefer.
Adjust the target resistance till you get a wraps number/resistance that is within the operating ranges of your mod and will still fit inside your atty.
If you have larger wire (lower than 28g) you're going to have a hard time getting a high enough resistance without huge coils when running duals.
Running Ni200 duals, he'll struggle to get to .1, even running 30g, and he'll basically never get to .2, unless they're like 32g and and 4mm in diameter.
Using Ti would allow him more range in building duals and staying within his TC mods limitations (depending on what they are),but if the mod has no Ti setting the Temps will have to be adjusted appropriately.
For my TC dual coil build I use my Velocity, get a 3.5mm machine screw and spin the 28g Ni200 around the screw threads for perfectly spaced 14 wraps per coil, while still around the screw secure the leads then twist the screw until it backs out of the coil. Repeat for the opposite side. Ohms out between .08 - .1 depending (usually gets screwed up wicking it). Big pain in the .....
In TC mode your mod will be able to go down to at least 0.1 ohms and maybe a bit lower. Check the specs on your mod and you'll see what it actually is.
Nickel has resistance, but it's significantly lower than Kanthal. I modeled a 28 gauge, dual coil Ni200 setup in Steam Engine. I used a 3.5mm inside diameter and got 12 wraps at 0.10 ohms. If your mod will fire at 0.8 ohms that will take the wraps down to 10. Thinner wire will need fewer wraps or can get the same resistance with a smaller ID, but nickel is so soft it becomes problematic IMO at higher than 28 gauge. Starting with a single coil build will allow you much more coil design flexibility with nickel.
Let us know how it goes
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