#500 SS Mesh

[mwa102464]

So funny how everyone is doing this or that,,, just to much, and Cyrus naming diseases after vendors and products you wont want to here this one but I've got Silica running down in the tank of my Line v2 and up top cotton wrapped around the silica with the coil wire going around the cotton with silica inside,,,, it's wicking like a sponge in a full sink of water and flavor is outstanding

 

[BJ43]

I don't know about rolling it tight Cyrus...for large weave mesh like 200 (I use that 170) in a top tank, it's not so much wicking as it is a perforated pipe that relies on gravity and surface tension, it kinda "bleeds" through to the coil as it's cooked off by the coil...I roll a thin wall tube out of 170 that just rocks in my GTUS...a tight roll doesn't seem to cut it, for me at least...

in fact, oddly enough, I rolled the same dimension as my 170 wick (I almost don't want to call it that, because again, it's not a true wick) out of 400 and dry hit city...I let BJ figure that one out

As you say, gravity flow going down thru a perforated pipe is a completely different principle, bigger perforations and bigger center hole more juice. On a tightly rolled wick with an overhead tank you have several forces working against the natural gravity flow, the first is capillary action which wants to go up and increases if part of the wick at the top of the tank is out of the juice, this up force fights against gravity that wants to bring the juice down, a second stronger force is thermal, hot juice rises. In a tight wick hot juice that thins rises faster than gravity can pull it down. A third up force is a lower pressure in the tank (vacuum), and harder for air to balance with a tight dense wick. With large holes in the mesh and large center hole, the weight of the large drops and center column of juice is more than enough to overcome any up forces. If your holes get too large then gravity overcomes surface tension and you flood.

 

[the ob]

So a little update.

I rolled a #400 at 60 mm wide tonight to try till the #500 shows up.

Here is what I've noticed so far.

1) it was a pain to get a coil set up. I oxidized and re-oxidized a number of times, but had a heck of a time getting it set up. I set it up on a device I know how to use and am very comfortable building these devices.

2) not getting great flavor or great wicking really. I have better flavor so far on one that I made at 15mm wide.

3) getting a lot of popping going on inside the top cap. Noticed this as I was oxidizing the wick as well.

As mentioned, I am very familiar with building these setups so I don't think that's the problem. Not sure what I'm doing wrong, but so far, no real success. I know it's not 500, but figured it would be close enough for a trial.

 

[PoppaVic60]

Hmm.. What unit is that, that you rewicked?

I get neither gurgling or snap-crackle-pop in my SS rebuilds = always occurs with a provided (silica, they say), wick.

 

[mwa102464]

Let's not forget about airflow, taking a pull with good air flow usually helps the mesh wick too.

@OB, You really shouldn't have anymore problem with 400 then any other mesh, it's probably just some extra fiddle faddle you need going on there , when ever I have an issue I take out my wick roll it some more, oxidize a bit more, and light the wick with some juice on it, spin it turn it, raise it up some, one of these should help ya out some.

 

[BJ43]

So a little update.

I rolled a #400 at 60 mm wide tonight to try till the #500 shows up.

Here is what I've noticed so far.


1) it was a pain to get a coil set up. I oxidized and re-oxidized a number of times, but had a heck of a time getting it set up. I set it up on a device I know how to use and am very comfortable building these devices.

2) not getting great flavor or great wicking really. I have better flavor so far on one that I made at 15mm wide.

3) getting a lot of popping going on inside the top cap. Noticed this as I was oxidizing the wick as well.

As mentioned, I am very familiar with building these setups so I don't think that's the problem. Not sure what I'm doing wrong, but so far, no real success. I know it's not 500, but figured it would be close enough for a trial.

Not knowing any parameters it is very hard to comment, what are you using it on, ohms, volts? My 60mm 400 work great and 500 better.
Dense wicks draw a lot of heat from the coil so I know of people who don't like them because it takes longer to heat the coil at low voltage..

 

[Quigsworth]

As you say, gravity flow going down thru a perforated pipe is a completely different principle, bigger perforations and bigger center hole more juice. On a tightly rolled wick with an overhead tank you have several forces working against the natural gravity flow, the first is capillary action which wants to go up and increases if part of the wick at the top of the tank is out of the juice, this up force fights against gravity that wants to bring the juice down, a second stronger force is thermal, hot juice rises. In a tight wick hot juice that thins rises faster than gravity can pull it down. A third up force is a lower pressure in the tank (vacuum), and harder for air to balance with a tight dense wick. With large holes in the mesh and large center hole, the weight of the large drops and center column of juice is more than enough to overcome any up forces. If your holes get too large then gravity overcomes surface tension and you flood.

It took me a long time to sort out that GTUS...as soon as I stopped thinking wicking and started thinking controlled down spout it all started coming together (by luck I had 170 and didn't even know it till Cyrus stuck it under a microscope, lol)...for the last force you mention (pressure differential)...when I made the "pipe" loose fitting in he mid section was because my thought was how can I get air up into the tank to avoid a vacuum lock?...by making it nice and wobbly...problem is (and why I don't really push this solution generically) is because it's so juice viscosity centric, even if your running 70/30 like me...viscosity centric it's also means effected by ambient temperature...and to throw one more variable...pressure balancing with a loose fitting pipe could also be effected by the altitude you're vaping at...over all, top tanks are a PITA, to me it's like one of those iron tavern puzzles...pfft!

 

[the ob]

I've tried all of that stuff.

Not sure what my issue is.

How long did those of you who have done this think it took for the setup to break in?

 

[the ob]

Not knowing any parameters it is very hard to comment, what are you using it on, ohms, volts? My 60mm 400 work great and 500 better.
Dense wicks draw a lot of heat from the coil so I know of people who don't like them because it takes longer to heat the coil at low voltage..

Using four wraps on a 60 mm wick in a cobra on a number of devices. Have used a Provari, a caravella and a ggts.

Measured 1.7 with the Provari with 5 wraps. Now hav it on a ggts with 4 Wraps.

 

[the ob]

Oh yeah, with a 3.7 battery.

 

[Murdock Ruml]

I'm gonna have to try this 500 mesh.

 

[emonty]

Ob: with a thick wick it is way easier to use the 28 AWG or the 30 AWG. When the top coil glows when you start off, add a drop of "dirty" liquid, pulse fire, keep going at it until all glow evenly. It might take a little time tweaking, don't give up!! as the end result will be perfect! I set it up with either a low battery or on a VV device with low voltage. The Provari is not good as it will give you errors all the time.

 

[the ob]

Ob: with a thick wick it is way easier to use the 28 AWG or the 30 AWG. When the top coil glows when you start off, add a drop of "dirty" liquid, pulse fire, keep going at it until all glow evenly. It might take a little time tweaking, don't give up!! as the end result will be perfect! I set it up with either a low battery or on a VV device with low voltage. The Provari is not good as it will give you errors all the time.

What's dirty liquid? I have it working, but don't have anything other than 32 right now.

I can't pulse it as I was blowing coils in a split second.

 

[emonty]

dirty liquid: a liquid with loads of flavoring: to aid with buildup.
do you have a device which you can set really low: like 2.8 volts?
if not: get 28AWG or 30 AWG

 

[TunnelVision]

What's dirty liquid? I have it working, but don't have anything other than 32 right now.

I can't pulse it as I was blowing coils in a split second.

ob, I brought a spool of 30 AWG 100ft.
I could send/give you a few feet to try out if you like.

 

[Currynoah]

What's dirty liquid? I have it working, but don't have anything other than 32 right now.

I can't pulse it as I was blowing coils in a split second.

Ob: I faced that "blown coil in a split second" scenario. I thought it might be because I was using the free #400 mesh the Meshcompany given. I can't help but notice that it was abit soft on the touch. Switched to the #400 (the one which seemed rougher) that I bought, and all seems fine. It may be just me though.

 

[emonty]

Made another great setup, now with 30 AWG and lower voltage with a Hellfire Mini

 

[dragos77]

Thank you emonty for telling me about this thread and BJ u just make me buy #500 SS mesh!

 

[emonty]

Thank you emonty for telling me about this thread and BJ u just make me buy #500 SS mesh!

Happy you are reading it!!!!!

 

[dragos77]

Happy you are reading it!!!!!

From the 1st post to the last one!!!
This thread is grandiose!!!
And BJ is The Man!