My First Attempt At Twisted
- Thread starter CrazyChef
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I know how you feel, I was thinking I have to get a dna-200 just to cover anything I might build!
Cause a car battery is too awkward to carry around....
Cause a car battery is too awkward to carry around....
Did you twist 4 strands at once or did you twist 2 at a time and twist the 2. Just curious. Coil looks good especially for a first attempt!
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I'm curious too. I tried 4 at once and it just didn't twist properly at all.
4 at once in a drill. Sort of looped about 1/8" at the end to keep it in the drill. Held the other end very taught with needle nose pliers. Started twisting slow, then sped up. Kept going until the end near the pliers snapped. As long as there's tension, it will only snap at the very end.
Will give it another go soon. I've got some dual twisted coils, but they don't perform as well as I'd like.
That's a lot of wire for 50 watts. Try four strands of 28 gauge wire next time, it will work much better at 50 watts than your four strand 26 gauge build -- the 28 gauge version will have around the same heat flux at 50 watts than the 26 gauge version at 100 watts.
I'd give two strands of 26 gauge and two strands of 30 gauge wire a shot if you want to stick with four wires. A four-strand 30 gauge coil at ~0.3 ohms is a bit on the "hot" side for 50 watts. Or you can bump it up to around 0.5 ohms and four strands of 30 gauge should work well at 50 watts.
While it doesn't support mixed gauges, the Steam Engine calculator will definitely help you out. Select "Round, twisted/parallel" under "Material and profile" and play around with the numbers. The calculated values for heat flux and heat capacity will help give you an idea of how hot the vape will be, and how fast the coil will heat up and cool down. Be sure to change the wattage value for heat flux to 50 watts (or whatever wattage you intend to use the coil at). I like to keep the heat flux at 250 - 300 mW/mm^2 and the heat capacity at 100 - 150 mJ/K for coils around 50 watts -- those numbers give a very warm (but not too hot) vape and don't have an excessively long ramp-up time. Of course everyone's preferences differ, but you'll learn pretty quickly what works best for you.
For comparison, your 0.27 ohm, 4-strand 26 gauge coil has a very low heat flux of 102 mW/mm^2 at 50 watts, which is why it isn't working well at 50 watts.
While it doesn't support mixed gauges, the Steam Engine calculator will definitely help you out. Select "Round, twisted/parallel" under "Material and profile" and play around with the numbers. The calculated values for heat flux and heat capacity will help give you an idea of how hot the vape will be, and how fast the coil will heat up and cool down. Be sure to change the wattage value for heat flux to 50 watts (or whatever wattage you intend to use the coil at). I like to keep the heat flux at 250 - 300 mW/mm^2 and the heat capacity at 100 - 150 mJ/K for coils around 50 watts -- those numbers give a very warm (but not too hot) vape and don't have an excessively long ramp-up time. Of course everyone's preferences differ, but you'll learn pretty quickly what works best for you.
For comparison, your 0.27 ohm, 4-strand 26 gauge coil has a very low heat flux of 102 mW/mm^2 at 50 watts, which is why it isn't working well at 50 watts.
The Wire Wizard section of Steam Engine supports just about everything including Claptons.
Wire Wizard | Steam Engine | free vaping calculators
Okay, so I took your suggestions and tried the Steam Engine site. Definitely and awesome tool = Thanks! I have a paid app called "Cloud.Box" on my Android devices that I've been using, and Steam Engine goes far beyond anything Cloud.Box is capable of. I've fooled around with Steam Engine a couple of times before, but never looked at it seriously because I have a paid app. Oops.
Thanks again!
Thanks again!
How well do you think that would work in a Kanger subtank mini? I have both the older and newer versions of the RBA assembly to work with.
Using wire that thick almost defeats the purpose. Also I've found twisting too tight starts acting almost like a single thick wire. I've managed to twist different size wires and it gives a smooth repeating pattern except for a visible flaw or 2 which usually can be avoided if the wire is longer than needed... although seemed no real advantage.
Darn now I'm gonna have to buy another mod...
I had the same issue. I was building .3 coils and while I love the iStick and still use it to this day, it wasn't cutting it.
Go for the Sigeli 150w and you'll have a lot of room to grow
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I was looking at the SMOK X Cube II. How do they compare?
Oh, I see you're from MA too!
Oh, I see you're from MA too!
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