Help with RDA build

[feltonj]

Hey all,

New to the forums, I'm looking for some help with building my rda I'd like a dual micro coil setup around 1ohm .9 to 1.2... I'd like to know what size drill bit to wrap around and how many wraps. Thanks for the help.

J



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[Enoch777]

First off, what device do you plan to fire it on? There's a big difference between 1.2 and even 1.1... as some devices will cut off at 1.1 (not fire), and some will even fire them but in an unsafe situation such as an eGo where you may be pushing past the 2.5 amp switch and there is faulty protection/no protection leading to battery failure.

Second, what gauge wire do you have?

Can't tell you where to go without knowing these two things first. Do your homework!

 

[Asmo6]

Not just that, what atomizer?

You basically just asked us what color should I paint my front door? I don't know? Where do you live? A house? An apartment? What color is your house? How about your porch?

We need proper backing information to give you proper answers.

 

[feltonj]

Trident and a jdtech stingray I've built my kayfun multiple times even at .5 on green sonys or purple efest, just never a dual coil

Thanks

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[feltonj]

I have 28 gauge kanthal

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[Enoch777]

I like the 5/64" myself, you get around .1 ohm per wrap so 12 wraps = 1.1 - 1.2 ohms. Of course this doesn't work so well for dual coil since you're halving your resistance so you'll likely want to use 1/16" or even 3/32" somewhere in the ballpark of 15-16 and 12-13 (respectively) wraps for each coil.

Should come out to around .8 to .9, so add more wraps if you want to hit higher. If that's too much coil, use 30 gauge.

 

[feltonj]

Wow thanks for the help sorry about the lack of info in the first place, would you have any idea if I used twisted 28 gauge I run a micro coil on my kayfun, I twist the kanthal with a drill but I notice it lowers my ohms over regular 28. Gauge

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[feltonj]

Err I attach a Allen wrench loop the wire over it and turn with my drill till its twisted really tight

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[Enoch777]

I do the same thing, using twisted 28 micro although I put mine in an RDA. Not sure how they function in a KFL not really my area of expertise. I don't see any reason why not, just check and double check your resistance after installing, and then triple check. Twisted coils tend to be a bit bulkier than your standard micro or nano coil.

The reason it lowers your ohms is the same reason it does for dual coils: You are essentially running each coil (or for twisted, length) as a separate resistor. This cuts your resistance by half.

Whether or not it will run depends entirely on your PV and battery. Can your battery handle the amperage being pulled by the twisted coil at whatever ohm you wrap it at?

Ohm's Law Calculator

 

[DharmmaCC]

+1 for the 10 or 11 wrap on 5/64.

 

[meatcarnival]

28g on end of 1/16" drill bit, 8 wrap micro (coils pushed together for contact), after dry fire and compressing it with tweezers, comes right in at 1.1 ohm.