Question about MVP v2 and one about rebuilding coils

[Bontasia]

Ok soooo MVP is ordered from 101vapes. 100ft roll of 32 gauge kanthal is ordered from Temco. Protank II ordered.

My 2 questions:

When I get the MVP what do I do? This will be my first VV/VW device, I've only used standard eGos thus far. I mean, what do I set it to? I've read about raising the watts little by little till it gets a little burnt tasting then lowering it back down but what do I start at? And do you use watts or voltage mode?

On the rebuilding Kanger heads, with the 32 gauge kanthal what ohm should I shoot for? I don't care about making huge clouds, I just want good flavor and decent vapor. I use low nic (6mg) e-liquid in a 50/50 mix. I'll be using a little screwdriver that you use for fixing computer parts to wrap them on. I know that it's prolly largely personal preference but I guess I want to know what's too high and what's too low.

Also, I've watched a ton of videos on making coils and some people use a torch and some people use a lighter. They cut off a section of wire about 4" or 5" inches long and hold one end with tweezers and run the flame up and down the length of the wire till it glows. I assume this is to burn off any chemicals on the wire. I don't have a torch so is it ok to use a lighter? I also read in the reviews that Temco wire tends to not have as much crap on it as opposed to other brands so that it's not as much of an issue.

Anyway, thanks for the help. I'm really excited to try my new things and I just want to be prepared.

 

[Baditude]

Applying heat is called "annealing", and it reduces the memory of the wire to make it less springy and easier to work with while making the coil. You can use a Bic lighter to do this, but a microtorch is faster and more effective. The wire should glow red if enough heat is applied. This annealing is necessary when you are making micro-coils, when the loops of wire are designed to be compressed together, touching each other. Compressing the loops together while being held in place with some tweezers or needle-nose pliers while annealing is the way to make a micro-coil.

microcoil (coil loops are touching one another)

Whether you use variable voltage or variable wattage is a personal preference thing. Perhaps start out using VV mode. (You will be either in VV or VW mode when using your MVP2, not both. The last setting in either mode will be the one that the MVP will be actively using.)

When using VV, its good to know the resistance of the coil. Then you can use the formula, "Ohm rating + the number "2" equals the voltage". For example, if you have a 1.5 ohm coil. Add the number "two". The sum is 3.5. Use 3.5 volts, and adjust up or down to your preference.

Pressing both the P and V buttons simultaneously will give you the resistance or ohm rating of your coil on your MVP.

Alternatively, you can just start out around 3.5 volts, and work your way higher in small increments until you detect a burnt taste, then move down a couple tenths of volts.

If you use VW or power mode (P), many vapers like 7 - 8 watts. But again, this preference varies widely user to user.
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When making coils for the MVP, realize it won't fire a coil of less than 1.2 ohms. Shoot for a resistance of 1.5 - 2.0 ohms for a regulated device like the MVP.

 

[sarvis]

Question if I could - what is the advantage of using VV if you have a VW capable device? Wouldn't it be easier for someone starting out to not have to mess with worrying over Ohm's law and coil resistance?

 

[Baditude]

Question if I could - what is the advantage of using VV if you have a VW capable device? Wouldn't it be easier for someone starting out to not have to mess with worrying over Ohm's law and coil resistance?

When you use variable wattage, its assumed you already know what wattage setting that you prefer. Many novices do not know what setting they prefer yet. This is only learned from experience using variable wattage over a period of time.

An advantage which I prefer variable voltage over variable wattage is that I often change my settings to my flavors. I change flavors multiple times a day, and each one has its own "sweet spot" setting of voltage where it tastes the best. If you are changing your wattage setting to adjust to flavors, too, then you are defeating the purpose of the "set it & forget it" concept of variable wattage. Right?

A novice can use variable voltage just as easily as variable wattage; you don't have to know Ohm's Law or even the ohm of the coil. If you are too lazy to measure your coil's resistance with your built-in ohm meter, then simply start low and work your way up the voltage settings until you find the voltage you prefer. The above formula (in post #2) is first grade math; if you can't add the number two to a known number (the coil resistance), then maybe you aren't intelligent enough to be vaping in the first place (sarcasm intended).

If you have only one flavor that you use, then sure, use variable wattage. I would then wonder why you need multiple tanks (with different ohm coils) for that single flavor. Or maybe you don't notice any difference in making fine adjustments of heat to vaporize different flavors and find just one setting tastes fine for all of them -- then use variable wattage.

Both VV & VW just take different avenues to get to the same place. Personal preference of which mode one prefers is only learned from personal experience using both. For the way that I vape, VW is a totally useless feature.

 

[sarvis]

Thanks for the reply - the last part is sort of what I figured - it's just two ways to get to the same thing. That matches with what I recall from physics classes. ; )

I have seen a number of posts implying that VV is somehow inherently better than VW, which I don't see following from Ohm's law. What I'm reading here is that it's not, it's just two ways to get to the same place. You could just as well adjust your watts to match the way you vape, just like setting voltage - since your resistance is constant (barring switching atomizers/coils/etc), you are just tweaking one side of the formula or the other. I honestly don't see how experience (novice or expert vaper) fits into it, except being able to determine taste better... which can then be adjusted the same either way, vv or vw.

A variable-temperature mod would seem to be the best solution, since that's the goal of all of this, it seems - adjusting how hot the coils get. Don't see those for sale, though, so maybe this is one of my mistakes for the day. Still early, got time for more...

 

[Baditude]

A variable-temperature mod would seem to be the best solution, since that's the goal of all of this, it seems - adjusting how hot the coils get. Don't see those for sale, though, so maybe this is one of my mistakes for the day. Still early, got time for more...

I haven't investigated the term "variable-temperature". Seems like it would do exactly what we have currently available, but only express the terminology differently to the end user. Changing the voltage/wattage of the coil essentually changes the temperature. You can't change one without affecting the other.

 

[Cool-breeze]

I think Baditude was spot on for everything said. Couple of extra thoughts from my experience: For building a coil with 32g wire I'm pretty confident its a 5/6 wrap on a 5/64th drill bit puts you right at 1.9-2.0 resistance. Also while rebuilding a kanger atomizer is certainly doable I wouldn't recommend that as a place to learn on for building. Compared to a RDA thats intended to be built on the RDA is much much easier. On the other side if you're on more of a budget and spent your extra money on the mvp and pro tank then I too would prob choose to build on it lol. Best of luck!

 

[sarvis]

I haven't investigated the term "variable-temperature". Seems like it would do exactly what we have currently available, but only express the terminology differently to the end user. Changing the voltage/wattage of the coil essentually changes the temperature. You can't change one without affecting the other.

Yeah, exactly. But knowing the temperature would be more useful that knowing the watts or volts. Different flavorings likely vaporize at different temperatures and burn at others, so temperature control would let vapers address that explicitly, instead of having to guess at the proper settings to achieve the desired result. Since temperature control is ultimately what we want, ideally we'd be able to set that instead of having to tweak settings to basically get a guesstimate of the end result.

Now, time to leave my ideal world and head back to the real one. I have to work in the real one... ; )


on edit: Found a thread on the temperature topic, if anyone's interested. Thanks for your answers, Baditude, there's clearly a lot I still have to learn. ; )

http://www.e-cigarette-forum.com/fo...559480-temperature-future-digital-vaping.html