#500 SS Mesh

[BJ43]

BJ, I see you have two ideas that need to come together.

The part about using 28G to heat the wick enough to produce vapor, sure the heat will be there, but airflow can't get into the wick so the heat doesn't get used efficiently.

Now with the dual wick figure eight wrap, if you drilled the second hole quite close to the first, the wicks would be parallel to each other with just the wire crossing in between and airflow can get to everywhere there is coil. With some careful math from TC's chart you can choose which gauge doubles the length/ ohms ratio to get 6-8 wraps on each to get it how you liked with 32G.

Do you see what I mean here?

I don't understand your physics, I don't need air to heat the wick, the thermal properties of SS wire in the mesh in contact with a hot coil is the primary source. In many of my wicks the wick gets red hot with the coil if I pump the voltage up. I understand the closer hole but was using a unit that was setup for a U wick..

 

[Snowball88]

I must say that is a BEAST.

"rusalka.. rusalka... hmm.. I think I've read that name earlier..."
Bingo!

If this is the same Rusalka on hellfire's list, you should get in touch with him asap!
http://web77.extendcp.co.uk/vapepit.com/index.php?/topic/1968-awol/
Alias Rusalka listed last.

 

[asdaq]

You can get heat into the wick no problem, but one also needs airflow to produce vapor, and the air won't get past the outer layer, especially if the mesh is wet (as it ought to be). Getting heat in there doesn't really bring any benefit.

The parallel wick setup doesn't get the airflow inside the wick either, but gets more surface area at least.

 

[BJ43]

Bj.

I normally vape at about 1.5. So you don't know how many wraps to do?

I only really understand this stuff in wraps as that is all I've ever done.


Cyrus, how can I tell?

Ok I understand now, and really for a three wrap 1.5 ohm 32g at 3.7v going to 500 mesh or a denser, larger rolled wick is not going to do much. That small heat area just doesn't need the extra juice these wicks provide. Its like a boiling pot, the higher you raise the heat more steam is produced or you can get more steam going to a larger pot on a bigger burner. You need bigger burner to produce more steam. In our case the bigger burner is more wraps and more voltage. These large dense wick are only there to keep the wick wet and large volume of vaper needs a lot of juice. We are restricted to how hot we can get the coil before we burn the juice, so a 3 wrap produces a certain amount of vaper and more voltage gets it too hot, to overcome this we use 6 wraps at the same temperature we had the 3 wraps at and produce twice the vaper. Only to get the 6 wraps of 32 to the same temp as the 3 wraps of 32, you need more voltage.

 

[PoppaVic60]

PoppaVic in regard to the Thor's draw I have used a 510 adapter for the connection to the Thor instead of or above the Ego fitting and it loosens the draw up.

Well, yes - I've tried that as well. The issue here is that I always seal the connectors into my electronics-bay. So,one way or another the airflow needs to come from elsewhere.

Simplest solution would be to just drill a small hole in the skirting, near the base of the 510-post in the Thor. Let it draw from outside.

Of course, this would easily be applied to any other device as well - I have no idea why anyone would want to allow ejuice to drizzle into the circuitry.

 

[BJ43]

You can get heat into the wick no problem, but one also needs airflow to produce vapor, and the air won't get past the outer layer, especially if the mesh is wet (as it ought to be). Getting heat in there doesn't really bring any benefit.

The parallel wick setup doesn't get the airflow inside the wick either, but gets more surface area at least.

Why do I need air to convert a liquid into its gaseous state, in a boiling pot the steam forms first at the bottom of the pot with no air. In the lab I have converted liquids to gas in vacuum, no air. I have wraped oxidized mesh around a thick g nr wire and it produces vaper, heating from the inside out thru a wet very hot wick. The wick itself becomes part of the heating element. True the vaper comes out the sides of the wick. but have a feeling that vaper is forming internal.

 

[TomCatt]

Could you please add 33 & 34g to the table. Thanks

Ohms/inch table for Kanthal A-1, Kanthal D, Nichrome 60, Nichrome 80

 

[Quigsworth]

So I pulled out my 30 and did a 1.3 ohm wrap on about as solid as I could roll it 500 wick in my Line...I've since ran it up to 4.5V to where my juice just starts tasting crappy...but it is juice and not just a hot dry SS/Kanthal hit...there is NO WAY I could've done that with 400 rolled on a paperclip with sustained back to back vaping...pretty amazed...

And a big sorry to Emonty...he's right about the instant vap...you hammer over 3.5A through your coil and it wakes up pretty quick

...I have a head ache now...

 

[gdeal]

Ok I understand now, and really for a three wrap 1.5 ohm 32g at 3.7v going to 500 mesh or a denser, larger rolled wick is not going to do much. That small heat area just doesn't need the extra juice these wicks provide. Its like a boiling pot, the higher you raise the heat more steam is produced or you can get more steam going to a larger pot on a bigger burner. You need bigger burner to produce more steam. In our case the bigger burner is more wraps and more voltage. These large dense wick are only there to keep the wick wet and large volume of vaper needs a lot of juice. We are restricted to how hot we can get the coil before we burn the juice, so a 3 wrap produces a certain amount of vaper and more voltage gets it too hot, to overcome this we use 6 wraps at the same temperature we had the 3 wraps at and produce twice the vaper. Only to get the 6 wraps of 32 to the same temp as the 3 wraps of 32, you need more voltage.

So let me see if I understand what seems to be an important point here and ask a question. If an objective is to get more coils over mesh surface to produce more vapor, how can one tell if they have optimal spacing between coils and are not creating "cold" spots if the spacing is too large or are creating "hot" spots if the spacing is too tight?

 

[asdaq]

BJ, if it is hot enough to reach the vapor point inside the mesh, isn't it hot enough to burn the liquid on the outside provided the coil is on the outside and heating inwards?

On a side (sort of related, not really) I saw this just the other day, and man was it disappointing that they had no film for it as it sounds pretty cool and 2 pics don't do it justice:
Superheated Steel Balls Make Water Boil Without Bubbles

 

[Quigsworth]

So let me see if I understand what seems to be an important point here and ask a question. If an objective is to get more coils over mesh surface to produce more vapor, how can one tell if they have optimal spacing between coils and are not creating "cold" spots if the spacing is too large or are creating "hot" spots if the spacing is too tight?

I don't think you need to be that concerned with your spacing gdeal...you just want to heat as much of your exposed wick as you can as opposed to concentrating all your heat to a small area...you can just as easily do a LR wrap with 32 (or even 34) but I'd think it's just going to take longer to get the wick up to vaping temp by virtue of your coils low surface area in relation to the much larger surface area of usable wick ...

 

[emonty]

So I pulled out my 30 and did a 1.3 ohm wrap on about as solid as I could roll it 500 wick in my Line...I've since ran it up to 4.5V to where my juice just starts tasting crappy...but it is juice and not just a hot dry SS/Kanthal hit...there is NO WAY I could've done that with 400 rolled on a paperclip with sustained back to back vaping...pretty amazed...

And a big sorry to Emonty...he's right about the instant vap...you hammer over 3.5A through your coil and it wakes up pretty quick

...I have a head ache now...

no need to say sorry, happy you got a headache

 

[Quigsworth]

BJ, if it is hot enough to reach the vapor point inside the mesh, isn't it hot enough to burn the liquid on the outside provided the coil is on the outside and heating inwards?

On a side (sort of related, not really) I saw this just the other day, and man was it disappointing that they had no film for it as it sounds pretty cool and 2 pics don't do it justice:
Superheated Steel Balls Make Water Boil Without Bubbles

Ah, they stole that idea from cavemen boiling water in animal skin bags...except they used rocks ...nanopartical covered rocks are super hard to find...

 

[PoppaVic60]

Cured my Thor, today - huzzah. I ran 2 1/16" holes - opposing sides - thru the skirt and thru the next "skirt"/tube as well. Now she draws as though I wasn't blocking the adapter or skirt/adapter at all. Also running cooler at the top for a ++. ;-)

Sadly, I am still staring at the mess on the bench and trying to figure out how the heck to use these stupid 18350's I bought. I can't find a box suitable for them, and I think I'd rather pack stuff up for now than to try cobbling junk again.

Anyone want to buy 4x 18350's? ;-/

 

[Quigsworth]

Cured my Thor, today - huzzah. I ran 2 1/16" holes - opposing sides - thru the skirt and thru the next "skirt"/tube as well. Now she draws as though I wasn't blocking the adapter or skirt/adapter at all. Also running cooler at the top for a ++. ;-)

Sadly, I am still staring at the mess on the bench and trying to figure out how the heck to use these stupid 18350's I bought. I can't find a box suitable for them, and I think I'd rather pack stuff up for now than to try cobbling junk again.

Anyone want to buy 4x 18350's? ;-/

Actually??? what are the 18350's (i.e. Trustfires, AW IMR's, etc.) and how much...was actually looking last night at some

 

[TomCatt]

18350's fit in the RadioShack 3"x2" and 4"x2" project boxes nicely.

 

[PoppaVic60]

tom: yeah, and the local shop doesn't stock them - nor can I acquire the battery contacts I want.

Quigs: MadVapes - protected 18350 Lithium Ion Battery, 1200 mAh 10019 $5.79

Ordered: 4
Shipped: 4 $23.1

You want them, throw me a line.

 

[asdaq]

Two stacked fit in about the space of a 18650 (like a regulated mod) or singly, they have a a nice compact power/size ratio for pipe mods or short stealthy mods. You just have to try a little harder to find a use for them.

edit: Guess you are moving them anyway. Those I would reserve for a stacked regulated mod.

 

[Quigsworth]

tom: yeah, and the local shop doesn't stock them - nor can I acquire the battery contacts I want.

Quigs: MadVapes - protected 18350 Lithium Ion Battery, 1200 mAh 10019 $5.79

Ordered: 4
Shipped: 4 $23.1

You want them, throw me a line.

Crap, thanks Poppa, protected batts work fine in my VV's but I have lots of those...I just thought I'd take them if they where high drain's for my GGTS in stealth...I'm forever be up against the cut-out with protected batts ...thanks though

 

[emonty]

1200 mah for those batts is way overrated and they are max 400 or 500 Mah in reality.
Get if any the AW IMR's at least you have quality and they perform perfect stacked..just my 3 cents