What happens when two links in a coil touch each other?

[mgomez]

I'm thinking of modding my Vivi Nova to have a longer wick and I'd like to create a new coil from Kenthal 20-gauge. The thing is that I realize I have to coil up the nichrome more than I would with a 32-gauge. What would happen if, say, I accidentally let two of the links touch each other? Would I damage the battery or would I simply damage the wire? Obviously, the wire is much, much cheaper!

 

[martinc]

You would create a short or if lucky,a hot spot...but more likely a short resulting in your coil not working (potentially destroying your battery circuit-dangerous) or reduce the ohm greatly

 

[sumoman25]

You can't get enough length for 20 gauge to work, I've tried with 22 gauge and it's absolutely ludicrous.

If 2 coils did touch the length of wire between the contact points would have no effect, reducing the resistance.

20 gauge wire is very interesting for other uses, though. Makes for an awesome handwarmer.

 

[ComfyChair]

I read this, went on to another post, then it hit me...you said 20 gauge. Took a minute for my brain to catch up...still trying to wake up here and coffee isn't working lol. Anyway, you might have some issues with 20 gauge - like having to make a 3ft coil to get 1.5 ohms out of it - kind of problem. I checked the charts quickly for KA, KA1, D, Nic80, 70, 60, etc...these tend to run 1 ohm or less per ft. So, theoretically, you're about to make a coil that your pv/battery may not even fire. Of course, my math could be off as I'm still barely conscious.

 

[MickeyRat]

I read this, went on to another post, then it hit me...you said 20 gauge. Took a minute for my brain to catch up...still trying to wake up here and coffee isn't working lol. Anyway, you might have some issues with 20 gauge - like having to make a 3ft coil to get 1.5 ohms out of it - kind of problem. I checked the charts quickly for KA, KA1, D, Nic80, 70, 60, etc...these tend to run 1 ohm or less per ft. So, theoretically, you're about to make a coil that your pv/battery may not even fire. Of course, my math could be off as I'm still barely conscious.

I haven't looked it up but, I've been up a while and I agree. No way you're going to make a coil that will fire with 20ga Kanthal and cram it into a vivi nova. At least not without a modification that would make the vivi nova as big around as a mayonaise jar.

 

[dnrtn2342]

Makes the movie 2012 look like a disney film.....

 

[tj99959]

I haven't looked it up but, I've been up a while and I agree. No way you're going to make a coil that will fire with 20ga Kanthal and cram it into a vivi nova. At least not without a modification that would make the vivi nova as big around as a mayonaise jar.

MiracleWhip jar would work a lot better

 

[spider362]

MiracleWhip jar would work a lot better

Nah, a MiracleWhip jar would be a knockoff. You'd need a true mayonnaise jar for it to be an original.

 

[mgomez]

Yeah, well I would have loved to make an atomizer that big, but nah, I'm too lazy. I was too nicked up while writing the original post, so here's the gauge I actually have: 32-gauge Kanthal 0.20 mm wire.

That's the thickest wire I could find in my local e-cig site under its modding section and I ordered that. You see, I don't want to make too many coils, so I thought getting a nice thick wire would prevent me from having to lengthen the circuit.

OK, so 32 AWG is just fine, as far as I've seen.

 

[mgomez]

OK, so I made the calculations:

Kanthal 0.20 has 43 ohms per meter, or 0.043 Ohms/mm.

2/0.043 = ~46.5

I need 4.65 cm of wire to reach 2 Ohms. That is going to be a pretty tough one to pull, I think..

 

[ComfyChair]

32 should be just fine. I'm using some 33.5 right now and I normally get between 1.4 to 1.8 ohms depending on whether I put 3, 4, or 5 wraps...depends on whether it's in a tiny stardust or vivi nova, or a more spacious Ody/Penelope. Let us know how it works once you get it all coiled up and vaping!!

 

[MickeyRat]

OK, so I made the calculations:

Kanthal 0.20 has 43 ohms per meter, or 0.043 Ohms/mm.

2/0.043 = ~46.5

I need 4.65 cm of wire to reach 2 Ohms. That is going to be a pretty tough one to pull, I think..

32 ga kanthal is fine, I'm vaping with it in a Penelope right now.

 

[mwa102464]

Try 29 awg, you might be able to make it work with this, and if so it would be a monster.

 

[Butters78]

 

[mgomez]

Wait... I just realized I have 0.18 mm Kanthal. That could make my life easier. Also, I found some 0.15 lying around as well. The 0.18 will help me make a higher-resistance version and the 0.20 should help me make a low-res mod.

 

[martinc]

yeah,0,20 gauge is 32 and 0,16 gauge is 34

 

[martinc]

yeah,the bigger the wire,the less resistance

 

[mgomez]

Now I just got an idea for a handheld water boiling device, but I just saw that it's been invented already. I hate living in the 21st century....

 

[mgomez]

So, today I just got my order of Vivi Nova v2s with the short wicks. I replaced all the wicks and re-coiled them with new Kanthal 32 AWG wiring to achieve 1.8 Ohms on each. It measures perfectly because of my precision in calculating the length of wire needed. However, I get a slightly burned taste if I pull very frequently from it. I notice that if I give it a sufficient break, I get a much nicer vapor. I can pull just a little and I get these enormous clouds of nice smoke. I'm definitely sticking to this!

My country doesn't have Vivi Nova 2.5s, so I had to make my own, and the experiment was extremely successful.