How To Build a 1Ω (0.7Ω) dual "nano" coil

[Prkns]

So here goes... my first "How to" post on POTV and in something that i've been spending a lot of time in and around. Tonight i will be showing you how i build a 1Ω (0.7Ω) dual "nano" coil on my Helios RDA clone. I don't know how many devices (other than mech mods) will fire 1 or sub ohm builds. So i apologise if this is a pointless tutorial.



Step 1: What you need...

Cotton Wool
0.25mm Kanthal Wire
Tweezers
Screwdriver
Scissors/Snippers
Paper Clippy type thing
Fresh Battery
Paper Towel



Step 2: Wrapping the coils

2.1 Cut 2 pieces of 6" Kanthal

2.2 Hold one of your Kanthal lengths against the Paper Clippy type thing

2.3 Wrap 11 coils as close together as you can and make sure that the 2 trailing ends are facing the same way

2.4 Use your tweezers and fingers to squish the coils together

2.5 It should looks something like this...

2.6 Repeat (so there are 2 coils)

2.7 Snip the wires so that there's about 2 inches one side and 1 inch on the other...

Step 3: Insert the coils into your RDA

3.1 Unscrew your terminals

3.2 Slide the coil ends into the terminals (or wrap around the screw, it all depends on the atomiser you have). This is where the longer lead comes in handy as a sort of feeder/tracer into the terminals.

3.3 Once both coils are installed, take your screwdriver and tighten down the heads. NOT TOO MUCH

3.4 Once they're both screwed down nice and gently. Snip the remaining coil leads

3.5 Check your resistance. Using this multi-meter, i completely forgot to check the internal resistance of the unit. I crossed the leads and got a 0.3Ω reading from it. So i guess i subtract this from the actual reading and i've got a 0.7Ω build?!

3.6 Put your battery into your mod

3.7 Fire your mod and check that the coils all glow nice and evenly (If the coils are slightly spaced out now, you can use your tweezers to squeeze them together a little bit, just don't fire the device while you're doing this)



Step 4: Cotton Wool

4.1 Sit your cotton wool under each coil so that the coil is just touching the wool. After a few hours, remnant enlightened me to a way of being able to thread the cotton instead of just laying the coil on top of it. If you're interested in doing it this way, check out his reply here.

IMPORTANT!!! DO NOT FIRE YOUR MOD NOW, YOU'LL SCORCH THE COTTON WOOL AND THAT'S NOT THE PLAN !!!IMPORTANT

Step 5: JUICE IT UUUUPPP!

5.1 Select your favourite juice

5.2 Load up the cotton wool and coils

5.3 Insert battery back into your mod (i always do this, just incase)



Step 6: DONE!

6.1 Test fire your build

6.2 Line up the airholes on the top cap of your mod with the coils you've just made

6.3 Give it a vape!

Short, Sweet and Simple... These builds generally are. All i will say is what everyone says. Make sure you're safe doing this with sub ohm builds, your're entering a whole world of safety issues. Take it easy and vape within your skill level.

Personally, i'm still a little scared of the sub ohm world so i try to stick to 1Ω as a rule. This can be the exception i guess. (Thanks to @vaporsizer for pointing some stuff out to me)




Verdict:

Vape is nice and warm but not too hot (bit like goldilocks and the 3 bears)... Flavour is amazing, my favourite juices have taken on a whole new life now... vapour production is insane! I do have my air holes on the Helios clone set to ALLTHEWAYOPEN! and this makes for a properly airy draw, but this is needed i think just to keep those coils working well. All in all, it's an absolute dream of a setup! Will definitely report back in a few days/week to see how it's going.



Hope this helps people... Take it easy!

 

[vaporsizer]

Thanks for this. Damn good tutorial & i have a couple questions if you don't mind. Is it 28 gauge as you stated or 0.28mm ? Just checking that's all. Your multi meter then, it reads 1ohm ,is that the whole coil resistance on its own or with the meter's own resistance added too ?

Cheers again, looks magic.

 

[Phantom Diablo]

looking at thickness of the wire i would say its 0.28mm as 28 AWG kanthal is actually 0.32 mm which is quite a bit thicker..
nice neat nano coils there. not done a build laying the cotton in the base just a warp around dragon coil build with the coils angled upwards at 45 degrees.. might have a play tomorrow but really must get some .25 -0.28 mm kanthal as my 0.32 is a little to thick

 

[Prkns]

vaporsizer thanks man... i've never really done anything like this before so it's all new to me ha ha


As for the questions. It's 0.25mm Kanthal. I got 10m of it from Vape Gear the other day and been meaning to try it out on a build like this. I've amended the post accordingly


The multimeter reading is from having red on the center post and the black on the 510 threads. As you can see on the reading, the multimeter is reading bang on 1Ω, at last check there wasn't any internal resistance on the multimeter. Thanks for asking this question because as i've just checked, the multimeter is now showing 0.3Ω when i touch the leads together, so i guess this means that i've actually built a 0.7Ω setup? SCARY!!


Thanks for these questions dude, i've had to go through and re-write parts of my thread ha ha

 

[the jester]

not knowing too much about coiling, while reading im thinking how the hell you gonna get a wick in there

may give this a try one day

 

[vaporsizer]

@vaporsizer thanks man... i've never really done anything like this before so it's all new to me ha ha


As for the questions. It's 0.25mm Kanthal. I got 10m of it from Vape Gear the other day and been meaning to try it out on a build like this. I've amended the post accordingly


The multimeter reading is from having red on the center post and the black on the 510 threads. As you can see on the reading, the multimeter is reading bang on 1Ω, at last check there wasn't any internal resistance on the multimeter. Thanks for asking this question because as i've just checked, the multimeter is now showing 0.3Ω when i touch the leads together, so i guess this means that i've actually built a 0.7Ω setup? SCARY!!


Thanks for these questions dude, i've had to go through and re-write parts of my thread ha ha

I've made the same slip ups myself in posts, that's why i asked. Not only that but it's a really good practical tutorial & now it's even better.
Nice one, i might have me go at it.

 

[Prkns]

not knowing too much about coiling, while reading im thinking how the hell you gonna get a wick in there

may give this a try one day

I thought the exact same thing when i saw Rip Trippers making this on YouTube... then he just lay it underneath and i was like "oh yea! that makes way more sense!". I'm not the biggest coiler, but this build is super super easy to do once you've got your coils nice and neat. I'd definitely recommend giving it a go dude.

 

[Deak]

So your rocking 0.7Ω would you add another coil or 2 or wrap it around a thicker pin to make it higher?

Ps thanks for the guide very neat work

 

[VeeDubZ]

nice and neat coil, easy to follow instruction. good job mate

 

[Chegs]

Deak adding an extra coil or two..... or wrapping round a thicker pin.... Both lead to increasing the final resistance.

Sent by lazer from just north of the world's largest nuclear dustbin