The Lemo RTA: A Build With Pics

[roxynoodle]

You have an istick, right? Will it go the full 20 watts with that resistance?

My wife is the manager of a local vapor store and they got the istick in about a week ago. (I thought it was awesome for the size and price) I tried two different atomizers on it. My Lemo built at 1.2Ω and the store owners Aerotank Mega which was reading around 1.7Ω I believe.

With it in VV mode (I didn't understand how to change it to VW at the time) it would only go up to 19.2 Watts with the 1.2Ω, and 14.4 Watts with the 1.7Ω.

Does it behave differently in VW mode? Even at the 19.2 Watts with the Lemo, I was impressed.

It does have some limitations depending on the build. Like I think 5v is the maximum it can put out. And I'm positive it doesn't have step down, but people on the iStick thread were arguing with me on that. Step down is a non issue for me running an rba, but some were having trouble getting low enough power for some clearos and cartos. I have it in vw mode as I prefer it.

I think its a great buy for an rta. Its a little limited at the top end for a dripper though.

Someone on the istick thread made a chart showing top and bottom outputs depending on resistance.

 

[BNEAT]

I saw somewhere that it has a 5.5volt limit, so if you were only getting 19.2 watts on a 1.2 ohm coil then it must have an amp limit of 4.

If it won't fire below 1ohm, then you're limited to 1.0-1.25ohm coils if you want a full 20watts out of these things.

 

[BNEAT]

OK, who started this? That iStick is so damn cute, I must have one!

 

[Dshobe]

Just for reference, here's my Lemo on my iStick.

 

[Thraizer]

Spaced out coil on rayon, Kanthal 27g 2.35mm ID 1.6Ω on the cana mod. 6mg of Flavorz by Joe RY4x4=pure goodness!

 

[roxynoodle]

Thrazier, thinking of putting wraps on some of my box mods. Can you still take off the door to change the battery with a wrap? I don't use the usb charging because it takes too long.

 

[Dshobe]

The back is a separate piece of the wrap, comes apart just the same.

 

[bobflanders86]

As a first RTA, I don't believe it's necessary to complicate the build and wicking with a vertical coil. A simpler horizontal coil will also give great results.

28ga wire is thicker then 30ga wire, therefore 28ga wire has less resistance then a similar length of 30ga wire. With the same coil diameter, 28ga wire will require more wraps then 30ga wire to achieve a similar resistance.

For your Istick, I would recommend working with 28ga, or perhaps even 26ga when building the Lemo and building a coil with a 2mm ID or greater. Currently, I'm building coils for mine on a 2.4mm precision screwdriver.

Plugging the number into a coil calculator, 8 turns would get you about 1.4Ω-1.5Ω.

However, I think you need to build down to about 1Ω on an Istick to get the full 20 watts. My current build for use on my 30 Watt device is 10 wraps of 26ga wire at 2.4mm ID for about 1.2Ω. I enjoy this coil in the area of 18-22 Watts.

Good to know, When you build a coil how important is it to check the resistance on a resistance checker, appose to using your vaping device's ohm checker?

 

[bholcomb22]

Good to know, When you build a coil how important is it to check the resistance on a resistance checker, appose to using your vaping device's ohm checker?

The short answer is very. The ohm checker on vv/vw devices are not nearly as accurate as a meter is, and they do not work perfectly. My ipv2 fired a dead short a few weeks back after one of my post screws backed out. vv/vw are never as accurate as a multimeter. I would definitely recommend against using a device to check your resistances.

 

[BNEAT]

I've got a $12.95 ohms checker and a $155 VW device. Guess which one I trust more?

 

[VaPreis]

Good to know, When you build a coil how important is it to check the resistance on a resistance checker, appose to using your vaping device's ohm checker?

When building for a mechanical mod, it is crucial to eliminate the possibility of a short and to make certain your build is within safe limits for your battery.

But when checking the resistance of a reasonable build such as what would be used on a device like the Istick, I am usually comfortable relying on the device, particularly if the resistance measurement is in check with what I'd expect it to be. I'm pretty guilty of this when building coils for my wife's kayfuns on her MVP2.

That being said, a decent 510 resistance checker, and even a multimeter, can be had pretty cheaply for some added peace of mind.

 

[Astron]

Just got my Lemo today...the curiosity was killing me, and I've been debating another Kayfun Lite, but with the price difference and the good/great reviews I've been reading and watching, I decided to go with the Lemo and boy am I glad.

Granted, I haven't rebuilt it yet so I may have to review this thread again for tips and tricks along the way, so thanks all who have offered advice and posted photos.

Mine came with a 1.1 pre built coil and it is absolutely solid. I'm getting nice, flavorful lung hits. I've had it on my iPV and now my iStick as my iPV needs charging. Running it at about 19 watts (don't ask me about actual output, I'm no good with that lol) and I think if I had to choose between another Lemo or a Kayfun it would be Lemo all the way.

As an aside it was between the Lemo and a Kayfun Mini but having handled the Mini I couldn't get past the tiny build deck. Funny how I was even considering the Mini when I was also considering this giganto beast LOL

Cheers, all.

 

[VaPreis]

I think it's pretty fair to say that the Lemo comes with the best looking pre-built coil and wick I've ever come across. To be honest, I didn't use it in either of mine, but I kind of regret not giving them a shot.

As far as rebuilding it, my best advice is to use a larger diameter coil (2mm+) and face the coil so the open ends directly face the liquid wells. Wick it with enough cotton to fill the liquid wells, but without over packing them. Covering the liquid channels is ok, assuming it's not overstuffed.

 

[roxynoodle]

My ipv doesn't have a usb port, lol! So it never charges, just the battery in a separate charger.

 

[bobflanders86]

If I were to build my first coil on the lemo, without checking the resistance first, and the ohm was like .4 or 4.4 extremely low or high. As long as I don't press the fire button the battery would be fine, I think? Just checking the ohm with the istick won't cause it to explode will it? I do plan on using a standalone resistance checker but I want to know what would happen, without doing it.

 

[Flt Simulation]

If I were to build my first coil on the lemo, without checking the resistance first, and the ohm was like .4 or 4.4 extremely low or high.

As long as I don't press the fire button the battery would be fine, I think? ... Just checking the ohm with the istick won't cause it to explode will it?

Just checking the ohms won't hurt a thing ... Even if the coil had a dead short

 

[VaPreis]

If I were to build my first coil on the lemo, without checking the resistance first, and the ohm was like .4 or 4.4 extremely low or high. As long as I don't press the fire button the battery would be fine, I think? Just checking the ohm with the istick won't cause it to explode will it? I do plan on using a standalone resistance checker but I want to know what would happen, without doing it.

It shouldn't fire anything outside it's normal range. Seeing as I don't own one, I can't say for certain that it will read a resistance outside it's normal range either.

Either way, if you get a "check atomizer" type of message, it's time to try again.

 

[VaPreis]

Tonight's dual coil build:



This one is using 26ga wire, 10 wraps each at 2.2mm. It came in at 0.7Ω and is a bit power hungry, running it at 25-28 Watts. It is cooler then the dual 28ga build, which is what I was hoping for. So far, it's vaping great.

 

[JHDublin]

Any pics of how you wicked it by any chance ?
Waiting for delivery of one and looking forward to see how it is compared to the Fogger V4

 

[roxynoodle]

Any pics of how you wicked it by any chance ?
Waiting for delivery of one and looking forward to see how it is compared to the Fogger V4

Watch this video.

Re-wicking my Kayfun for optimal performance serial5.ru