Slow ramp up.

[Hederath]

Hi, it's my first post on this forum so I want to greet everyone : )
To the point - I vape for like 5 or 6 years by now, but today I got myself a first mechanical mod. Before I bought it, I read a lof about Ohm's law, battery safety etc, etc but something suprised me. My coils are ramping as slow as turtle walks. On regulated device I was putting like 40W on this build and everything was ok.
My device - Vandy Vape Pulse BF Squonk Mod and Cheetah II rda (i know it's not for squonking)
Build I have used - two clapton coils with 6 wraps on each, 0.56. Wire is A1/Ni80 (26GA Ni80 +32GA) - from GeekVape
And my battery is brand new Samsung Q30 fully charged.
Should I use other wire for mech?

 

[NealBJr]

Hi, it's my first post on this forum so I want to greet everyone : )
To the point - I vape for like 5 or 6 years by now, but today I got myself a first mechanical mod. Before I bought it, I read a lof about Ohm's law, battery safety etc, etc but something suprised me. My coils are ramping as slow as turtle walks. On regulated device I was putting like 40W on this build and everything was ok.
My device - Vandy Vape Pulse BF Squonk Mod and Cheetah II RDA (i know it's not for squonking)
Build I have used - two clapton coils with 6 wraps on each, 0.56. Wire is A1/Ni80 (26GA Ni80 +32GA) - from GeekVape
And my battery is brand new Samsung Q30 fully charged.
Should I use other wire for mech?

I've stuck with regulated mods for this reason. Every time I use a mechanical mod, I seem to prefer single coil and thin wire for faster ramp up. Claptons have a lot of metal to heat up, and you have two of them. Have you tried taking out one of the coils to see if the ramp up time is faster?

 

[Topwater Elvis]

Did you accurately measure resistance of the finished build?
2 coils .56Ω each = .28Ω - or - 2 coils 1.12Ω each = .56Ω
One draws 7.5a the other 15a, the Samsung 30Q is a good 15a CDR cell.

2 fancy coils (12 total wraps) is a lot of metal mass to heat = slow ramp up.

 

[Hederath]

Well, I'll definetely try this when I'll be back home from work.
2 coils 1.12 - .56 is the correct one.
At home I got two types of Vandy Vape's prebuilt coils, maybe you guys know it. They're inside fancy bottle with something like wine plug locking it. This is a fused clapton 0.43 per coil and Quad Core Fused Clapton .22 per coil, maybe one of these will fit nicely?

 

[dom qp]

This is normal.

There's 2 ways to hit a desired resistance. In a regulated mod you can just use a thicker wire to get a lower resistance. You can pump up the power so the only thing that matters is the resistance.

In a mech, your power is fixed. Your voltage is not variable in the same way it is in a regulated mod. The best way i've seen to reduce resistance is not to use thicker wires, but to reduce the number of wraps.

A 5 wrap 3mm ID 26*3/38 NI80 coil is 0.202 ohms with a mass of 357.83 mg

A 3.5 wrap 2.5 ID 28*3/36 NI80 coil is 0.203 ohms with a mass of 188.40 mg

Same resistance, but one has 190% the mass of the other.

Imagine two cars, one weighing almost double the other. They look the same, they have the same horse power. Which one will take longer to get up to 100km/h?

This: "two clapton coils with 6 wraps on each" sounds way too heavy for your power output. You need to either go single coil and lower resistance or go to a series mod with higher output.

In the two coils I list above, I vape one at 4.7V (on a regulated mod). It doesn't get hot otherwise. The second at 3.4V it's still hot.

For you, 40W @ 0.56 ohms is 4.73 volts. In the BEST POSSIBLE CASE, with 0 voltage drop and on a FULLY CHARGED battery, you're getting 4.2V. You need to build your coils so they get hot with only 3.4-4V, after you consider voltage drop and your battery voltage going down.

Here is my performance on a Samsung 30Q with the smaller coil I mentioned:

 

[Topwater Elvis]

Simple single wire or 2 strands thinner gauge twisted will work very well.
A single fancy coil (high metal mass) may heat faster, but still might not heat as rapidly as you'd like.

Did / do you accurately measure resistance of the finished build?

 

[Punk In Drublic]

@Hederath – you can use Steam Engine to get an idea of how a coil may perform. It’s impossible to be 100% accurate for there are way too many variances but it will give you a ball park idea. Using Wire Wizard within Steam, keep your eye on the Heat Capacity which is related to the mass of your coil. The more mass, the more Heat Capacity the longer it takes to heat up with the same amount of applied power.

The Vandy Vape 0.43 ohm Fused Clapton that you mentioned has a mass of approx. 336.39mg, this equates to a Heat Capacity of 152.43mj/k. In comparison, a regular A1 24awg coil with the same 0.43 resistance only has 90.37mg mass and 41.57mj/k Heat Capacity.

Also note that premade coils are rarely correct with their resistance – please ensure you measure the resistance of your build prior to using on a mec mod.

Steam Engine | free vaping calculators

 

[VapourFlavour]

Hi, it's my first post on this forum so I want to greet everyone : )
To the point - I vape for like 5 or 6 years by now, but today I got myself a first mechanical mod. Before I bought it, I read a lof about Ohm's law, battery safety etc, etc but something suprised me. My coils are ramping as slow as turtle walks. On regulated device I was putting like 40W on this build and everything was ok.
My device - Vandy Vape Pulse BF Squonk Mod and Cheetah II RDA (i know it's not for squonking)
Build I have used - two clapton coils with 6 wraps on each, 0.56. Wire is A1/Ni80 (26GA Ni80 +32GA) - from GeekVape
And my battery is brand new Samsung Q30 fully charged.
Should I use other wire for mech?

Welcome! Those are big coils, if you're looking for a quicker ramp, try something smaller, just make sure you know what your build comes in at and do the proper calculations to stay safe. That's a really nice tat btw!

 

[Hederath]

Ok, now I understand.
I've got last question - how about flavor?
Ppl around me are saying that the more advanced coil I have (i mean, all this quad core, octa core, juggersomething etc) then I'll get better flavor than from simple SS or kanthal build.

 

[dom qp]

Ok, now I understand.
I've got last question - how about flavor?
Ppl around me are saying that the more advanced coil I have (i mean, all this quad core, octa core, juggersomething etc) then I'll get better flavor than from simple SS or kanthal build.

Sort of, but no.

Flavour has a strong correlation with surface area. Complex builds have higher surface area, but diminishing returns on mass gain.

IMO dual/trifused claptons are in the perfect balance between surface area and mass.

There are other factors that go into flavour, like ramp up and warmth -- those are negatively impacted by mass.

 

[Punk In Drublic]

@dom qp – well said!

There is always a compromise – our goal is to find a happy medium that suits our needs.

 

[Hederath]

I think I'll visit my vape shop today.
Should I buy A1 Kanthal or Ni80?

 

[Punk In Drublic]

I think I'll visit my vape shop today.
Should I buy A1 Kanthal or Ni80?

Both and experiment. There is no better wire – it is what you prefer.

 

[dom qp]

I think I'll visit my vape shop today.
Should I buy A1 Kanthal or Ni80?

NI80. It ain't 1995 anymore. Kanthal is useful for getting higher resistances. On a mech mod if your resistances are too high it will hit cold and weak. It's especially useful in dual coil because it lets you hit those .2/.3s, but you still have that mass problem. IMO Kanthal is better for regulated dual coil.

I love the geekvape spools like you mentioned. I use 28*3/36 NI80 the most, but on a samsung 30Q you won't have the amperage you need to do a lot of builds.

A 30*3/38 NI80 is decent too, I use it sometimes when I need to build higher resistance. You could get ~0.3 ohms using this one which is fine for the 30Q.

In the end though, the best thing you can do is get a single coil RDA. Dual coil on a single 18650 is tough, on a 30Q is tougher. Even if you get something cheap like a Wasp Nano it will be better.

 

[Topwater Elvis]

After trying all sorts of wire types, builds etc... my favorite is still 2 strands twisted kanthal, gauge is a personal preference you'll have to fiddle with to figure out what yours is.

 

[zoiDman]

Hi, it's my first post on this forum so I want to greet everyone : )
To the point - I vape for like 5 or 6 years by now, but today I got myself a first mechanical mod. Before I bought it, I read a lof about Ohm's law, battery safety etc, etc but something suprised me. My coils are ramping as slow as turtle walks. On regulated device I was putting like 40W on this build and everything was ok.
My device - Vandy Vape Pulse BF Squonk Mod and Cheetah II RDA (i know it's not for squonking)
Build I have used - two clapton coils with 6 wraps on each, 0.56. Wire is A1/Ni80 (26GA Ni80 +32GA) - from GeekVape
And my battery is brand new Samsung Q30 fully charged.
Should I use other wire for mech?

Have you ever put a Cast Iron pan on a Camping Stove to cook Eggs? It takes Forever for it to heat up. Right.

Why? Because a Cast Iron Pan has an Enormous Mass compared to the Small Flame that the Camping Stove puts out. That's kinda how I view Multi-Wire Exotic Coils on Single Battery Mech Mod.

If you are New to Mech Mods, I would Strongly Suggest that you start with Single Wire Builds. I think 26ga is a Good All-Around Wire gauge to start with. But I only use Single Coils RDA's. So I'll let Others chime in on what they like for Dual Coils.

But No Matter What you go with, ALLWAYS know what Amps your build is going to draw from your Battery. And ALLWAYS Check the Resistance of a Build on something you know is Relatively Accurate before you put a Build on a Mech.

 

[Hederath]

Thanks for all your answers guys

 

[BrotherBob]

Thanks for all your answers guys

Welcome and glad you joined.
Happy to hear you have your solution.

 

[MJCSD]

Hello and welcome to ecf

 

[diagrammatiks]

The pulse bf is known to have horrible voltage drop. Probably the worst out of its price range