My first (successful) rda coil build. Pretty stoked.

[LikelySplash710]

So! After discarding a frustrating amount of cotton and kanthal due to impatience and lack of proper tools I have finally built my first coil.
Any input would be appreciated. I used 22ga kanthal wire it's on the sigelei S rda with the sigelei 213 box mod. It's telling me .2ohms @3.82v. My eleaf tells me otherwise not sure which is wrong. I'm vaping what I assume to a 80-20vg at about 38w, sound right?

 

[LikelySplash710]

Also! Side note for any other new comers. Amazon has great cheap kits for building some that even include an ohmeter, great tool to have. I got a cool kit for 12.99 and had to buy the cutting pliers separate but for a fair 7$ spools of coil wicks as well quite affordable with a fast reliable delivery for any one else out there who is impatient like myself.

 

[Beamslider]

Yes seems right. 7 wrap AWG 22 Kanthal is around .4 ohm so two coils around .2 ohm

 

[LikelySplash710]

And that's what I thought following what I have learned so far. I'm also assuming my eleaf is reading wrong the sigelei I feel should be more reliable. Also the half coil wraps on each end total to one more while wrap?

 

[bwh79]

Yes seems right. 7 wrap AWG 22 Kanthal is around .4 ohm so two coils around .2 ohm

3.8v at 38w doesn't sound right for a .2, though. Unless the Sigelei mod is showing battery voltage, instead of applied voltage? Which would be great, but not that common.

 

[LikelySplash710]

Both voltages say 3.8. Not sure maybe I need a new mod. It's not throwing anything crazy that's for sure. Also I noticed my middle post is rotating...

 

[LikelySplash710]

The display

 

[Izan]

So! After discarding a frustrating amount of cotton and kanthal due to impatience and lack of proper tools I have finally built my first coil.
Any input would be appreciated. I used 22ga kanthal wire it's on the sigelei S rda with the sigelei 213 box mod. It's telling me .2ohms @3.82v. My eleaf tells me otherwise not sure which is wrong. I'm vaping what I assume to a 80-20vg at about 38w, sound right?

Welcome Dabs,

Have you played with the Steam engine?
Coil wrapping

cheers
I

 

[stols001]

0.2 is a pretty low build but it looks great! Are you getting a reasonable vape at 30 watts? If your center post is starting to rotate, you may want to keep an eye on things, so that it doesn't become unusable... Some folks put heat sinks on their mods, so I hear? It's one way to avoid stripping your threads.... I have some in my FT cart (just like the way they look) but haven't actually pulled the trigger yet, though I don't have a mod known for bad 510 pins.

As far as the voltage, that seems a bit odd... IDK quite what to speculate there. But mainly, CONGRATS on your first build, that's fantastic!! I hope you get it up and running in a way that you enjoy.

Anna

 

[LikelySplash710]

So when I bought my mod they tweaked the settings and may have set it at 3.7 from what I have been reading bumping it up won't make much of a difference? Also don't know what I'm doing haha so a bit scared. The clouds are a good density could go for a bigger pull. The airflow holes on this deck are pretty small. I chose the Sig s because it was recommended as a 3 post beginner mod. Also I only have 22ga kanthal currently so have been only able to work with that seeing as I live in the woods!!!!

 

[LikelySplash710]

Heyyy boss, yes I have played with steam engine but I have a bit of dyslexia and it has been hard for me to make sense of it even though I understand what I'm reading!

 

[VictorViper]

A bit of a mess, cotton-wise but otherwise not a bad looking first build. It does seem like low wattage for such a low build, but as usual, if it works then you're golden!

As an aside, 22ga will severely restrict your build options - that is a FAT wire. You'll be able to strongarm it into submission with your mod, but I'd personally recommend keeping 26ga kanthal around as a good all-rounder.

 

[LikelySplash710]

Thank you! So, were should my cotton be I did make a bit of a mess Haha. Also I think the strong wire is the culprit for my center post rotating but I'm not sure....

 

[VictorViper]

As a rule, you want to ensure the coil is clear of any obstructions, including underneath it. When you pull air through, you want the airflow to fully surround the coil before coming up through the mouthpiece. From the angle of the shot, it appears you have cotton beneath and in front of the coil. Try to clear that out (can probably just trim excess or even just use a screwdriver to move it out of the way).

The centre post on your RDA looks like it's removable. Heavier gauge wire will generally take heavier torquing to get a solid connection, so yes, probably the culprit.

 

[bwh79]

Both voltages say 3.8. Not sure maybe I need a new mod. It's not throwing anything crazy that's for sure. Also I noticed my middle post is rotating...

The display

Ah, it looks like that actually is the battery voltage, then. Well that's handy to know, gives you a better indication than "well the battery bar icon looks about two-thirds full, I guess." Showing individually for each cell, too. Anyway, what are those numbers in the center column? Is there another "voltage" reading there? It almost looks like that middle-middle one says "2.45v"? That sounds about like the proper applied ("output") voltage for 30w on a .2Ω build (2.45 * 2.45 / .2 = 30.0125)

 

[LikelySplash710]

So If it's removable I could potentially pop it off and do a single vertical build? It's been catching my eye..

 

[VictorViper]

So If it's removable I could potentially pop it off and do a single vertical build? It's been catching my eye..

Nooooooo, no no. One lead MUST be in the positive post, the other in a negative post. If you can remove the centre post you'll only do that for cleaning. That thing needs to be nice and snug.

Single coils though? Go nuts! You can try that right now!

 

[LikelySplash710]

Look in a bit better?

 

[bwh79]

So If it's removable I could potentially pop it off and do a single vertical build? It's been catching my eye..

No that's not going to work, because the center post is "positive" and the outer ones are both "negative". The coil has to go from center, to one of the outer posts, positive to negative. You can't go from outer post to outer post, negative to negative, as there would be no complete circuit that way.

 

[VictorViper]

Look in a bit better?

Muuuuuuch better. Results?