Do you need a mechanical mod for using rebuildables ?

[Justin Proctor]

I have been watching alot of videos on rebuildables recently and am planning on getting a couple as soon as i can make up my mine on which to get. In the meantime i have been researching, seeing what tools i need etc. One thing which keeps appearing are these dual coils with 0.5-0.7 ohms. Someone in a previous thread told me to look up ohms law and do a bit of research on my batteries but that has just left me even more confused.

$10.06 Sony US18650V3 18650 3.7V 2150mAh Rechargeable Li-Ion Battery (2-Pack) 2-pack - 10A discharge / with carrying case at FastTech - Worldwide Free Shipping

Pretty sure these are the batteries my VAMO uses. I tried entering the voltage and ohms into an ohms law calc and it says i would need 32 watts comming from my battery (As i understood it) on my battery page i cannot see how many watts or volts my batt is limited to. All the videos of people using these "sub ohm coils" seem to be using mechanical mods to do it, which i do not own.

So my question is do you need mechanicals to use rebuildables ? The last video i looked at the guy said "So if i am vaping at 4v and my coil is 0.5ohms then ohms law says my batteries should be grand" or something to that effect....

My iclear 16's are 2.0-2.2 ohms and i run them at max 4.2v. Anything over that and i get a burnt taste....So how the heck can this guy be running a 0.5ohm coil at 4v and not be getting a burnt taste ?

Signed,
Very very confused vapor.

 

[toddrhodes]

Definitely not, I've used my RBA's on an ego battery, Vamo V4, MVP V2, and my ProVari Mini. While I won't say which I prefer (should be obvious), so long as you're not rebuilding them below 1.5 ohms, you can use them on whatever you prefer or have at hand. The beauty of mechs is their simplicity *and* their ability to support subohm vaping, neither of which is an inherent trait of RBA's. I hope that helps!

 

[OzarkTroutBum]

So my question is do you need mechanicals to use rebuildables ?

No, as long as you stay within the OHMs limits of your APV. Anything lower or higher than your APV's limits wont fire.

 

[JuiceIsLoose]

Your Vamo won't fire sub ohm coils

Don't quote me on this but, I think the lowest a Vamo will fire is 1.3 ohms. It won't do that at 6 volts since there are amp limits on the switch so it will drop the voltage so not to exceed 15 watts of output.

If you want adjustable output, the DNA 20 devices can output 20 watts and go down to around 0.8 ohms (I think but don't quote me) If you want to go higher than 20 watts, then you'll have to use a mechanical with a very high drain 18650 IMR battery. Since Ohm's Law and the knowledge required to do it without blowing your face off is lacking, at the very minimum I'd use a fuse device with the battery. That way if something shorts out or you make a 0.2 ohm coil--the fuse or breaker will trip and you'll live to see and vape another day.

Vaping at 4 volts at 0.5 ohms is 32 watts. If it is purely a mechanical with a freshly charged AW IMR 18650 1600mAH battery, it could be that high for about one good hit before the voltage sags. The battery can handle the 8 amp load but don't expect strong voltage stability at that high of a load.

Sub ohm vaping when you don't fully understand Ohm's Law, have batteries that are rated for the huge current draws and running no fuses is like running Nitrous Oxide in a car engine and not understanding the danger. Either way, the device can blow so be careful out there. If you don't know exactly what you are doing like it's second nature, I'd stick with the DNA 20 devices for high powered vaping for the adjustability and safety factors inherent in the design.

After all a battery is a device that can hold or discharge a lot of power--sometimes rapidly. The other device that can discharge a lot of power very quickly is called a bomb. The best thing you can do is find a person that knows the ins and outs of mechanicals, has a multi-meter to check the builds and the wisdom to know what the limits are. Good luck!

 

[Justin Proctor]

How do you make a coil with more resistance....It seems like 5-6 wraps is the norm and even at that these people are still getting 0.5-0.7....Is it the gauge of the wire which causes more resistance ? If that is the case what gauge wire would be the best to get resistance around 1.8-2ohm ?

 

[montara]

Get the whole sub-ohm hype out of your head and start your RBA life with a target 1.5>2.0 range. Check out the micro coil, mighty fine vape and a good starting place. IMO the #1 tool for anyone getting into RBA/RDA is a ohm meter. Everything you need to know in within these forms.

 

[SissySpike]

If your going to do sub ohm a mechanical is the right mod. A multimeter is a good thing to have. These are the a good battery for sub ohming 2 Sony US18650VTC3 High Drain 30A Rechargeable Lithium Li on 18650 Battery 1 6AH | eBay they have them for cheaper but your taking a chance of counterfits if you go with the cheapest seller. Heres a ohms calculator so you can see how many amps your pulling with any given set up and some battery info

Ohm's Law Calculator

http://www.e-cigarette-forum.com/forum/blogs/baditude/4848-9-battery-basics-mods-imr-protected.html

 

[Krazirob]

its all about airflow.....those tanks and clearos don't have alot of airflow.....when you make a sub ohm coil and a big ... air hole your allowing the air to cool the coil as it heats up so you don't get a burnt taste.....also your wick is important too and how you set that up.....I was pushing 15W on my pro tank rebuild but thats because i had alot of airflow and i used cotton as a wick.......its all in the overall build!!

 

[Krazirob]

Get the whole sub-ohm hype out of your head and start your RBA life with a target 1.5>2.0 range. Check out the micro coil, mighty fine vape and a good starting place. IMO the #1 tool for anyone getting into RBA/RDA is a ohm meter. Everything you need to know in within these forms.

and i agree with this guy......a micro coil at around 1.3 or 1.5 area will give you a great vape on a mech mod or even a VAMO.......like i said its all about airflow.....the more airflow you can get the cooler the vape is and the more vapor can produce........sub ohm isn't really a must unless you wanna cloud chase and with that you need to research it extensively before you just jump into it.....batteries and mods and what they can handle are key in not having something go wrong on a sub ohm setup

 

[Krazirob]

How do you make a coil with more resistance....It seems like 5-6 wraps is the norm and even at that these people are still getting 0.5-0.7....Is it the gauge of the wire which causes more resistance ? If that is the case what gauge wire would be the best to get resistance around 1.8-2ohm ?

thicker the wire the less resistance you have....but you can create more resistance with more length of the wire.......so you can get more wraps with a thicker wire than a skinnier wire.....i can make a micro coil from 28G 12 wraps and its around 1.3

 

[toddrhodes]

How do you make a coil with more resistance....It seems like 5-6 wraps is the norm and even at that these people are still getting 0.5-0.7....Is it the gauge of the wire which causes more resistance ? If that is the case what gauge wire would be the best to get resistance around 1.8-2ohm ?

Just FYI, I do 6-7 wraps with 30awg Kanthal and my builds are usually in the high 1, low 2 ohm range. If you're using a thicker gauge, the resistance is lower so you can do more wraps and achieve the same resistance. I feel like a good compromise between resistance and overall coil surface area is the best setup you can get. To get great vapes with true subohm results is to use two 2-ohm coils as a dual coil setup, netting you 1 ohm total. That gets you a large surface area and low resistance. That's just my opinion though, no science in particular.

 

[JuiceIsLoose]

How do you make a coil with more resistance....It seems like 5-6 wraps is the norm and even at that these people are still getting 0.5-0.7....Is it the gauge of the wire which causes more resistance ? If that is the case what gauge wire would be the best to get resistance around 1.8-2ohm ?

The thicker the wire, the lower the resistance. The longer the wire, the higher the resistance. There are calculators out there to guess at it but it's best to use an ohm meter to make the final say. The larger in diameter the coils, the higher the resistance since the wire is longer. If you want 1.8 ohms or higher, you'd have to use 30 to 32 AWG wire and around 10 wraps or so around a 1/16th inch drill bit. Just a guess though, the meter will tell you what it is. As they say, it is better to test than guess so ohm meters (or multi-meters) are your friend.

The good thing about learning to build RBAs with a Vamo is it won't let you fire a shorted head or one that is too low in resistance. Best to use that until it all becomes natural for you before going to the dark side of vaping with a mechanical.

 

[SissySpike]

AWG 28: Low Resistance (0.44 ohms/inch)
AWG 30: Low Resistance (0.70 ohms/ inch)
AWG 32: Low - Standard Resistance (1.1 ohms/ inch)
AWG 33: Low - Standard - High Resistance (1.39 ohms/inch)
AWG 34: Standard - High Resistance (1.76 ohms/inch)

 

[montara]

How do you make a coil with more resistance....It seems like 5-6 wraps is the norm and even at that these people are still getting 0.5-0.7....Is it the gauge of the wire which causes more resistance ? If that is the case what gauge wire would be the best to get resistance around 1.8-2ohm ?

Wire: the lower the # = the fatter the wire = less resistance. Think of it like a water pipe (not that... the one that feeds your kitchen sink) If you have a 1/2 inch pipe, X amount of water will flow in X amount of time. Now if that was a 1 inch pipe their is less resistance and 3 times the water would flow in the same amount of time. (if the pressure was the same... think of pressure as the amps in this case).
A coil is nothing more than a compact way to store a straight piece of wire. 3 wraps around a 1/4 drill bit is the same as 7 around a 1/8 drill bit.... You need to practice with different size wire coiled around different size bits to find YOUR sweet spot. Measure (with ohm meter) and record your results.
Currently I have been using 9 wraps of 28ga around a 14ga needle and ending up @ 1.6 ohm. If I ran this duel coil the resistance would be cut in half (twice the pipe) and I'd be sub-ohm. 0.8

 

[SissySpike]

Dont let people nanny you, your doing right asking questions and learning what you need to know before you start experimenting. Try several different set ups and make up your own mind what you like. You can buy wire on Ebay very cheap buy the spool. High Quality Genuine Ekowool
These guys have quality wicking material the cheap Chinese stuff is bunk who knows what its made of. Have fun and enjoy. Its very rewarding making your own set ups.

Id suggest a Igo W for a starter atty youll need to drill the holes out to 1/16 but its a cheap enough atty and dose a good job.

 

[vjc0628]

I use AWG 30 5 wrap's doubled over 2mm elkwool get 1.5 works great on provari

 

[Baditude]

I prefer my RBA's on my Provari's over my mechanicals. I won't do sub-ohm.

I do a 6-7 wrap of 30g kanthal wire to make a 2.0 ohm single coil. I use a pre-rolled SS mesh wick from Vapor Kings. You can check your coil's ohm rating on your Vamo's meter.

Best video on building coils and pulsing them on your Vamo to work out hot spots is the video Zen did for the ZAP for Provape Z-ATTY-PRO Rebuildable Atomizers For ProVari - YouTube

Here's a compilation of information resources that should aid your research:

Information Resources for Your First RBA

 

[Justin Proctor]

Just to be clear as i think alot of you have read my comment wrong. I am not looking to make sub ohm coils i am activly trying to stay away from them atm as i don't have a device capable. I may start experiemting with mechanical mods at some point but from what i have heard a little mistake here or there could make the batteries unstable so i don't want to risk it until i have these ohms law thing down to an art. Gonna get a nice cheap rebuildable and a trident to start with.

Looking on ebay for the wire atm. Is it the mm width or the awg i should be looking at ?

 

[SissySpike]

I would stick with 30,32 or even 34 gauge wire for regulated mods. you can buy 50 ft spools of each for pretty cheap. 28 guage is to low of resistance for what your wanting.

 

[SissySpike]

Just to be clear as i think alot of you have read my comment wrong. I am not looking to make sub ohm coils i am activly trying to stay away from them atm as i don't have a device capable. I may start experiemting with mechanical mods at some point but from what i have heard a little mistake here or there could make the batteries unstable so i don't want to risk it until i have these ohms law thing down to an art. Gonna get a nice cheap rebuildable and a trident to start with.

Looking on ebay for the wire atm. Is it the mm width or the awg i should be looking at ?

while you want to not have shorts it wont just blow up or go thermal if you do have one. You have alot of protection uesing regulated mods you dont have with mechanicals. You can make some very good set ups for your regulated mods most will give you a erroe code if you have a short. they give the same error code if you make the resistance to low. Both for your protection and to keep you from frying your switch or board by pulling to many amps.