Noisy cricket Mod

[hkleun]

Hello, I hv recently purchase the mod, but i am not sure on the coil build.
I have build a coil with 24g 3mm .3ohms, but the coil get burning hot and melt immediately after I pressing the button.
My questions:
Do I need to wire with higher resistance or thicker wire?
Does higher gauge means higher resistance?
Thanks

 

[93gc40]

yeah 180watts is a bit much for that thin a wire, that low. You either need higher resistance, more wraps with same wire or much thicker wire for the low ohm build. Try about 1ohm or about 10-12 wraps on a 3mm. That should get you about 50 watts or so. I am correct that the Cricket is a series mod, right, so 7 plus volts

 

[93gc40]

You might want to modle some builds on steam-engine.org

 

[sonicbomb]

That mod is powerful and requires a good understanding on mechanical devices to use safely. Do you have any experience with building your own coils or mechanicals? Your question would suggest not. Did you do any research on the NC before purchasing it?

Some basics:-

Thicker wire = lower resistance
Lower number = thicker wire
As suggested use a thinner higher resistance wire and use a lot more wraps. Fully charged the NC pushes 8.4 volts which is a lot. Plug the numbers into www.steam-engine.org and build accordingly.

Whats batteries are you using?

The NC has a 'hybrid' style 510 connector. You need to make sure the positive 510 connector on your RDA protrudes at least 1mm to prevent dead shorting your battery, which of course leads to extreme nastiness.

 

[hkleun]

That mod is powerful and requires a good understanding on mechanical devices to use safely. Do you have any experience with building your own coils or mechanicals? Your question would suggest not. Did you do any research on the NC before purchasing it?

Some basics:-

Thicker wire = lower resistance
Lower number = thicker wire
As suggested use a thinner higher resistance wire and use a lot more wraps. Fully charged the NC pushes 8.4 volts which is a lot. Plug the numbers into www.steam-engine.org and build accordingly.

Whats batteries are you using?

The NC has a 'hybrid' style 510 connector. You need to make sure the positive 510 connector on your RDA protrudes at least 1mm to prevent dead shorting your battery, which of course leads to extreme nastiness.

I had little experience with building RDA, because i was told what wire and wraps i should use. So perhaps I miss out the basics.
so does this mean I would need a higher gauge wire to have a higher resistance? Can u suggest a wire I Should use?
Also, how do I know how many wraps I should use?

I am using two 18650 batteries.

 

[sonicbomb]

The issue with mechanicals is they are completely unforgiving of user error. Which is why people usually do all the required research, and acquire the necessary tools before buying or building anything.

Yes, as stated, a thinner wire will have a greater resistance and have a higher number.
A good place to start, 26 guage wire dual coils, 10 wraps at 3mm internal diameter ~ net resistance 0.7 ohms. I modeled this on Coil wrapping which was already suggested you use for planning builds.

Never put a build on your device without first checking the resistance. Do you have the means to do this? Firstly you need to know you have successfully hit your target resistance, and secondly that you do not have a dead short. Remember shorting your batteries can result in serious injury.

I asked what battery you are using, not how many of them you have.

What atomizer are you using, and does the 510 positive connecter protrude at least 1mm?

 

[93gc40]

The 24 you have is OK you just need to build the coil(s) to a higher resistance. With the 24awg that will mean more wraps. Thinner wire will make for a smaller coil at the higher resistance, but could also result in too hot a coil at the resulting wattage. This is why I suggested the Steam-Engine.org to use for modeling coils. It allows you to build a coil at the heat range you want based on the amount of power you will be feeding the coil. You start on the battery tab, set you volts and target ohm, take the wattages result and plug than into the coil build tab along with the ohm. Then you can play with number of coils, ID and wire gauge to find the best build for you.

 

[KenD]

.3 ohms on a dual battery series mech. I really hope that you're using Sony vtc4s or LG hb6s, otherwise you're exceeding the capabilities of your batteries by a lot. Even if you're using those batteries I really recommend that you build higher resistance coils. Even at 1 ohm you're at 70w with fully charged batteries, and that's quite a lot.

Sent from my M7_PLUS using Tapatalk

 

[sonicbomb]

@hkleun I'm taking a guess that English isn't your first language. If so please don't be put off by all the questions. The mod you are using has the potential to injure you or people around you if not used correctly. I would just like to help you avoid that.

 

[hkleun]

The issue with mechanicals is they are completely unforgiving of user error. Which is why people usually do all the required research, and acquire the necessary tools before buying or building anything.

Yes, as stated, a thinner wire will have a greater resistance and have a higher number.
A good place to start, 26 guage wire dual coils, 10 wraps at 3mm internal diameter ~ net resistance 0.7 ohms. I modeled this on Coil wrapping which was already suggested you use for planning builds.

Never put a build on your device without first checking the resistance. Do you have the means to do this? Firstly you need to know you have successfully hit your target resistance, and secondly that you do not have a dead short. Remember shorting your batteries can result in serious injury.

I asked what battery you are using, not how many of them you have.

What atomizer are you using, and does the 510 positive connecter protrude at least 1mm?

Thanks for the instructions, I Guess I have some ideas now
I am using Samsung 25 R green 18650 Battery, is that the right battery?
my Rda is jay -wismec -Indestructible RDA



http://vapesque.co.uk/product/samsung-25r-18650-battery/

 

[sonicbomb]

Your welcome , now were are getting somewhere.

The Samsung 25R green is a 20 amp CDR battery. Make sure you use and charge the two of them together, this is called marrying.
Samsung Green 25R (25R5) 20A 2500mAh 18650 Bench Retest Results...a great 20A battery

The NC uses the two batteries in series which means you have 20 amps, and 8.4 volts at maximum charge, this will go down as you use it. Your coil is burning because it does not have enough surface area to handle the amount of power the mod is delivering to it.
A single coil with 9 wraps at 3mm of your 24G wire will give you a net resistance of about 0.85 ohms, generating about 80 watts and drawing about 10 amps which is well within the safety limits of your batteries.
Coil wrapping
If you were to use a higher resistance wire like the 26G I suggested, then it would be practical to use dual coils and get even more surface area.

I looked up some pictures of the Indestructible and it seems to have a protruding 510 pin, but you should measure it yourself.
You also did not answer about using a meter to check the resistance of the build, this is vital.

 

[chaoscoils]

Hello, I hv recently purchase the mod, but i am not sure on the coil build.
I have build a coil with 24g 3mm .3ohms, but the coil get burning hot and melt immediately after I pressing the button.
My questions:
Do I need to wire with higher resistance or thicker wire?
Does higher gauge means higher resistance?
Thanks

24 g 16 wrapps on a 3mm post is good for the noisy cricket I run this build on mine all the time it's comes in at .51 after being tuned but tune it on a regulated device or it will melt prior to being tuned

 

[Smucky]

If you can do clapton wire (or just buy some) I've found that the best build on the cricket for me is dual coil 26/32 clapton, 3mm internal diameter, 6 wraps. Comes out at a nice safe 0.49 ohms every time.

 

[Ben85]

You have had some good advice here. Sonic, your posts are always well thought out and highly informative.

Just FWIW, I have a NC and use 24g kanthal. I have settled on a .69 build in mine as I find that to be the sweet spot for my rda (Phenotype L). I personally wouldn't be building much lower than that with this mod.

 

[sawlight]

Just so the OP know's, the build you are using comes out to 235 watts and 28 amps with a full charge. That's not including any battery sag, I know, but it's pushing the batteries way too hard! It's an accident waiting to happen, be glad the coils are burning up!
Build a higher resistance coil, try to keep it above .5 ohms, for you, and your batteries sake.