Need advise to setup my mech mod to produce biggest cloud

Status
Not open for further replies.

suprtrkr

ECF Guru
ECF Veteran
Verified Member
Jun 22, 2014
10,410
15,049
Cowtown, USA. Where the West begins.
The Fuchai is going to make a lot bigger cloud than anything you can get on a one-battery mech. Of the 3 attys you mention, I think you'll get the best cloud out of the Alliance. It looks to me like it has the best air of all of them, plus the top chamber to let the vapor boil and cool it some, and air is what you need for cloud (in addition to power and juice, of course.) I think I would probably set it up with something like 2x28/32 fused Claptons coiled in the .2-.3 range-- get much lower and you start to lose surface area-- and crank the watts on the Fuchai until your throat sears. On the AR... well, it's a one battery tube. It just doesn't have the power a regulated mod can produce because you're limited to battery voltage. Even if you bought LG HB6 batteries for it-- you'll need a handful, they'll be flat in just a few hits, only 1100mAh-- and took it to 30 amps, you still can't get much over 120ish watts. Even that requires a .15 coil and that low a mech starts to run into voltage drop problems. Safe or no, efficiency in a mech starts to fall off below .25 or so. The Fuchai will beat that all hollow. That 454 is pretty interesting, but with quads you start to run out of room under the top cap pretty quick and each of the individual coils has to be smaller; plus the arrangement of the deck is such you just about have to run verticals and that makes it hard to tuck the upper tail back to the deck for additional juice transport. For cloud, surface area (plus tall power) is where you want to be. I'll bet you can get more surface area in dual fused claptons than in quad slick wire wraps.
 

CrazyJ734101

Full Member
Jan 28, 2016
6
0
34
The Fuchai is going to make a lot bigger cloud than anything you can get on a one-battery mech. Of the 3 attys you mention, I think you'll get the best cloud out of the Alliance. It looks to me like it has the best air of all of them, plus the top chamber to let the vapor boil and cool it some, and air is what you need for cloud (in addition to power and juice, of course.) I think I would probably set it up with something like 2x28/32 fused Claptons coiled in the .2-.3 range-- get much lower and you start to lose surface area-- and crank the watts on the Fuchai until your throat sears. On the AR... well, it's a one battery tube. It just doesn't have the power a regulated mod can produce because you're limited to battery voltage. Even if you bought LG HB6 batteries for it-- you'll need a handful, they'll be flat in just a few hits, only 1100mAh-- and took it to 30 amps, you still can't get much over 120ish watts. Even that requires a .15 coil and that low a mech starts to run into voltage drop problems. Safe or no, efficiency in a mech starts to fall off below .25 or so. The Fuchai will beat that all hollow. That 454 is pretty interesting, but with quads you start to run out of room under the top cap pretty quick and each of the individual coils has to be smaller; plus the arrangement of the deck is such you just about have to run verticals and that makes it hard to tuck the upper tail back to the deck for additional juice transport. For cloud, surface area (plus tall power) is where you want to be. I'll bet you can get more surface area in dual fused claptons than in quad slick wire wraps.
Great information i appreciate it, so I'll be using the ar for my new daily and the fuchai to pump the clouds.
 

suprtrkr

ECF Guru
ECF Veteran
Verified Member
Jun 22, 2014
10,410
15,049
Cowtown, USA. Where the West begins.
Great information i appreciate it, so I'll be using the ar for my new daily and the fuchai to pump the clouds.
Sound plan. I do myself. Right now I have 4 mods set up on my desk. 2 x RX200 coiled .12 SS316 dual parallel in big-air tanks; and two mechs with drippers coiled .5ish Kanthal. That's a real sweet spot, hits right at 35 watts, nice dense warm vape. Cloudy enough to fog out my room, but not a contest winner :)
 

Two_Bears

Vaping Master
ECF Veteran
Verified Member
Jul 4, 2015
7,045
16,673
Northern Arizona
Alright guys so I just got a ar v1.5 mech mod and I also have a fuchai 200w. Trying to set up for the biggest cloud possible. So far I have to alliance v2 rda. What other rda's are good for it? I'm getting the 454 big block and also the velocity. Help me out guys I need huge clouds there pretty big now but I know I can get them bigger

Learn building
Learn Ohms law
Learn battery safety.

What the heck am I thinking?

There are more important things than blowing the biggest cloud such as battery safety so your battery doesn't turn into a pipe bomb, and a satisfying vape that keeps you off the Stinkies.
 

niczgreat

Ultra Member
ECF Veteran
Verified Member
Jun 5, 2009
2,500
2,141
Chino California
Stick with the Fuchai not the mechanical unless it's 2 battery Mechanical.

For Safety 2 Battery Mod like Fuchai is safer.
Going down to .15 Ohm is running into hard short territory.
1 battery Mechanical current technology doesn't have the ability to run this setup completely safely.[Arguable]
4.2V at .15 means you are pulling 28 Amps.
Most batts are pulling 20 or 25 amps continuous. So if on only 1 battery you are stressing the batteries past there tolerance.
My suggestion is to use the Fuchai Or if Mechanical at the least a 2 Batt Mechanical in parallel. So the Amps are divided in 1/2.
1 Bat Mod won't hold the high voltage for long anyway.
 
Last edited:

MacTechVpr

Vaping Master
ECF Veteran
Verified Member
Aug 24, 2013
5,725
14,411
Hollywood (Beach), FL
The Fuchai is going to make a lot bigger cloud than anything you can get on a one-battery mech. Of the 3 attys you mention, I think you'll get the best cloud out of the Alliance. It looks to me like it has the best air of all of them, plus the top chamber to let the vapor boil and cool it some, and air is what you need for cloud (in addition to power and juice, of course.) I think I would probably set it up with something like 2x28/32 fused Claptons coiled in the .2-.3 range-- get much lower and you start to lose surface area-- and crank the watts on the Fuchai until your throat sears. On the AR... well, it's a one battery tube. It just doesn't have the power a regulated mod can produce because you're limited to battery voltage. Even if you bought LG HB6 batteries for it-- you'll need a handful, they'll be flat in just a few hits, only 1100mAh-- and took it to 30 amps, you still can't get much over 120ish watts. Even that requires a .15 coil and that low a mech starts to run into voltage drop problems. Safe or no, efficiency in a mech starts to fall off below .25 or so. The Fuchai will beat that all hollow. That 454 is pretty interesting, but with quads you start to run out of room under the top cap pretty quick and each of the individual coils has to be smaller; plus the arrangement of the deck is such you just about have to run verticals and that makes it hard to tuck the upper tail back to the deck for additional juice transport. For cloud, surface area (plus tall power) is where you want to be. I'll bet you can get more surface area in dual fused claptons than in quad slick wire wraps.

The 454 Big Block is about one of the finest all-around RDA's I've ever run across. Really amazing. Somewhat limited in cap for large coils and could use more airflow but tremendous production for what it does. Had the good fortune to run into the maker at the Tampa trade show and bought a bunch of these. Lately took advantage of localvape's closeout. Have large airflow devices or make 'em so but keep on returning to this little honey for the balance of flavor and overall production. A very underestimated atty.

Only differ with you @suprtrkr on the subject of contact area. The most theoretically productive would be flat wire. But with purely flat too great a length to height ratio (of coil overall) and its too much a tube to provide efficient egress of vapor (fry your wick). And no matter how many nooks and crannies in multi-wire, it's only wetted contact surface that vaporizes. A higher aspect ratio of wire produces more diffusion. Too much and this fails for lack of actual production. Regardless of airflow. In fact, made worse by it. A thought experiment for finding the balance in what you like and do.

I'd say most important to learn how to get wire to produce in its basic form. Learn how to rebuild efficiently. To understand these electrical limits of wire, devices and cells. Then, you can be master of your vaping domain. Less guessin'.

Good luck :)

 
Last edited:

Completely Average

Vaping Master
ECF Veteran
Jan 21, 2014
3,997
5,156
Suburbs of Dallas
There, fixed it! :D

Good luck.

Your fix is only half right.

Two Bears advice will "fix" the safety issue, but it's not going to change the fact that a 200W regulated mod will put out more power than a single 18650 mech mod can. To hit 200W with a single 18650 you're going to have a 50+A current from the battery. That's WAY beyond the safe range of any 18650 on the market.

IF you're using a true 30A 18650 then I wouldn't advise using any build that exceeds 100W of power. That will put you at 27-28A depending on battery charge. That means a minimum of a 0.13ohm coil which I wouldn't build without a MUCH more accurate ohm meter than your standard $20 toy box you get from the vape shop.
 

Baditude

ECF Guru
ECF Veteran
Apr 8, 2012
30,394
73,076
71
Ridgeway, Ohio
Alright guys so I just got a ar v1.5 mech mod and I also have a fuchai 200w. Trying to set up for the biggest cloud possible. So far I have to alliance v2 rda. What other rda's are good for it? I'm getting the 454 big block and also the velocity. Help me out guys I need huge clouds there pretty big now but I know I can get them bigger
Why does anyone "need" huge clouds, anyway? :blink: Unless you are involved in cloud chasing competitions, there's no "need" for HUGE clouds.

In case you're relatively new to mechanical mods, please review the following:

A Beginner's Guide to Your First Mechanical Mod

Some helpful information:

Coils, Wicks, and Vapor Production:
Vapor production comes from a combination of net coil surface area, wicking and juice type, air flow... and the wattage necessary to heat that net coil surface area. If you're lacking in any of those areas, you'll come up short.

Just a few basic points, for your consideration... some IMO, some incontrovertible fact.

  • The gauge of wire and overall length of that wire is what determines resistance. Coil count is irrelevant.

  • Thicker gauge wire, for a given net resistance, where the finished coil(s) physically fits in the atomizer, provides the greatest surface area.

  • Thicker wire, for a given net resistance, runs cooler than thinner wire, for a fixed wattage value.

  • For a given net resistance, thicker wire requires more wattage to obtain the same heat flux (coil radiant heat) as thinner wire. Thinner wire, although it reduces surface area, can be used to raise heat flux where adjustable wattage (mech mod) is not an option.

  • Higher wattage, for a given net resistance, produces more heat, and requires both better air flow and optimized wicking.

  • "In-coil" wicking that is "loose" vs. "tight" is almost always a better choice, as overly tight fits can choke off the capillary action of the wicking medium.

  • Plain old cotton balls can be "unrolled" perpendicular to the grain, to produce a flat strip of cotton.

  • Always roll cotton wick in parallel with the cotton "grain".

  • In an RDA, high VG juice will produce thicker "cloud" density.
(--Thanks to State o" Flux)
 

MacTechVpr

Vaping Master
ECF Veteran
Verified Member
Aug 24, 2013
5,725
14,411
Hollywood (Beach), FL
You shouldn't own a mech until you know how to make them work the way you want

Don't agree with that statement. Advanced vapers shouldn't encourage neophytes to throw in big power builds. And that includes many players in this industry. You can get in deep with variables too especially high power which just encourages the behavior. We need to be responsible for our own. No disrespect intended but that's the truth.

Good luck. :)
 

MacTechVpr

Vaping Master
ECF Veteran
Verified Member
Aug 24, 2013
5,725
14,411
Hollywood (Beach), FL
Your fix is only half right.

Two Bears advice will "fix" the safety issue, but it's not going to change the fact that a 200W regulated mod will put out more power than a single 18650 mech mod can. To hit 200W with a single 18650 you're going to have a 50+A current from the battery. That's WAY beyond the safe range of any 18650 on the market.

IF you're using a true 30A 18650 then I wouldn't advise using any build that exceeds 100W of power. That will put you at 27-28A depending on battery charge. That means a minimum of a 0.13ohm coil which I wouldn't build without a MUCH more accurate ohm meter than your standard $20 toy box you get from the vape shop.

Personally don't build below .25Ω CA which is the nominal practical limit before diminishing returns I believe for most batt's. Also, build and use cells that give me at least 20% headroom over the design limits. Anyone who doesn't understand the amp limits of the devices they're using should be getting counseling, either technical or mental. So I'm with ya. Where's the half I'm missin'? That's what I mean by batt safety.

Good luck.

:)
 
Status
Not open for further replies.

Users who are viewing this thread