Please help me with rebuilding an RDA coil

[Kyle&Ann]

I just replied to my own thread started a few days ago...decided to start a new thread hoping to get some help. Please let me know if I violated any forum rules and I will learn from the violation...

Ok...got my 28 awg Kanthal A1 wire and my wick material in today. Used the spreadsheet mentioned in this thread to make a few wicks. According to the spreadsheet, 8.8 cm of wire (single coil) should provide 1.8 ohm's.

Not even close. It has produced a coil with .6 ohms. I did not attempt to fire up the VAMO.

I increased the length of the wire to 10 cm & 13 cm. This also did not produce a usable ohm level. 13 cm produced a 1.0 ohm coil. This was not usable by the VAMO. Against better judgement, I tried to fire it up and it would not work.

What am I doing wrong?

 

[Kyle&Ann]

Bump

I am sitting with wire and wire cutters in hand...please help!

 

[gmb225]

well to start u probably should be using 32g kanthal. what r we building a coil for? 8 to 10cm sounds like alot of wire. ive built coils for kanger protanks, rsst rba, and dual coil for the nimbus rda and dont think ive used more that 3cm for each maybe just a little. but 28g is for lower ohms. mostly. need info pics anything?

 

[gmb225]

with my nimbus 3 wraps of 32 g around 2 2.5mm wick gives 1.4ohms.

 

[Jazzi Mike]

Did you use more wraps when you used more wire? I agree with the above poster, you should have gotten thinner wire, maybe 30-32 gauge next time. However, you should still be able to wrap a coil with enough resistance to fire on a VV/VW device (around 1.5 ohms +) with 28 gauge

 

[Kyle&Ann]

I have a Vamo and I am rebuilding a Smoktech RDA. Someone had given me a "calculator" and I am using it's recommendations. The calculator recommended 8.3 cm of 28 awg to achieve 1.8 ohms.

Yes...more coils when using longer lengths of wire.

Here is a question...does it matter if the coil wraps touch each other? I could really use some help...I am getting frustrated.

 

[Jazzi Mike]

It does matter. In the RBA forum, many people are using 'micro coils' in which they use like 10 wraps in a very small space that create less resistance.

Are you using the 4 lengths of silica like they are made for? One way you may increase your resistance is increasing wick size, so your wraps will be longer

 

[Kyle&Ann]

can post more if needed

 

[XtianApi]

I do not know why your calculator is telling what it is, but just from looking at your picture, if I were to do that many wraps with 32 gauge kanthal wire, I would probably get 2.5 to 3.2 ohms, or something like that. If I were using 30 gauge wire, it would be Substantially lower, and with 28 gauge, it would be way lower still. If the 28 gauge is the only wire you have, I would forget the calculator for one try. I would wrap at least ten wraps, in the same amount of space as your picture, probably more like thirteen wraps. With that many wraps, the heat is spread out, so the coils can be very close together. Coils can touch lightly and not short out, because of the oxidation layer built up on the coil, but do your best to keep them separate. A lot of wraps can give you a very consistent, smooth vape, that can take a lot of power, without burning the juice. I'll keep an eye on the thread if you need help, but jazzi mike and gmb225 are right on the money. Good luck.

 

[Kyle&Ann]

XtianApi...

Thanks so much...I will keep you informed via posts or pm. I appreciate everyone's help.

 

[tearose50]

You might want to read this:

http://www.e-cigarette-forum.com/for...first-rba.html

And for more drama and info:

http://www.e-cigarette-forum.com/fo...ussion/448133-end-coming-i-can-feel-wind.html

 

[gmb225]

find some youtube video's to. that should help a lot.

 

[dw'struth]

I did this with 28ga Nichrome, and ended up with 1.2 ohms...which works on my Vamo. However, your ohms would be a little higher with the kanthal. As long as you have some cotton handy, the build isn't as hard as it might seem at first glance........

Build: Octopus RDA Cottontail Bunny - YouTube

 

[Kyle&Ann]

ok...13 wraps gave me 1.6 ohm's. I was really happy to see this however, when I fired up the Vamo...I got ZERO vape at all. I could here it sizzling and pooping...but no vape production at all. What the heck?

 

[Kyle&Ann]

find some youtube video's to. that should help a lot.

Tried to find some with not much luck...know of any?

 

[Kyle&Ann]

Tried to find some with not much luck...know of any?

LOL....missed the one in the post above...Doh!

 

[Vash]

Check out this link http://www.e-cigarette-forum.com/forum/reos-mods/413000-rm2-rba-2-0-reomizer-2-rebuild-tutorial.html

Different RDA but same principal .Try wrapping a micro coil and you will be good to go.I just wrapped one for my wife on a A6 RDA and it vapes perfect and super easy to wrap if you do like link shows you

 

[Vash]

Make sure your airhole is lined up with your coil

 

[Kyle&Ann]

Check out this link http://www.e-cigarette-forum.com/forum/reos-mods/413000-rm2-rba-2-0-reomizer-2-rebuild-tutorial.html

Different RDA but same principal .Try wrapping a micro coil and you will be good to go.I just wrapped one for my wife on a A6 RDA and it vapes perfect and super easy to wrap if you do like link shows you

Dude...that freaking worked as far as omh output. It was super easy just like you said. I am using some new silica wick material I just received in the mail.

I am not getting much vape and it is lacking in taste. Could this be the new wick material?

 

[Vash]

Dude...that freaking worked as far as omh output. It was super easy just like you said. I am using some new silica wick material I just received in the mail.

I am not getting much vape and it is lacking in taste. Could this be the new wick material?

It might be cant say for sure since I only use cotton.You should run out quick and get some sterile cotton if you dont have any to make a wick Costs like few bucks for a bag and will make endless wicks

Also what voltage are you using it at and what is ohm of your new coil?