Optimal mesh dimensions, wire size and wraps for specific devices

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gdeal

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I just wrapped a coil on an AGA-T. The wire is ribbon Kanthal DSM (.5mm x .1mm) Resistance 9.09 Ohm/ft, so its fairly close to 30g A1, the width is more like 24g and the thickness is like 38g.

Interesting vape. Heats up like 30g. Vape is very smooth. Lots of wire surface directly on mesh surface.

Used a drill bit for coiling. Oxidized the wick once, lightly. Tweaking the coils is a little more difficult to do than with round wire. This is running at 2.2 ohms (6 wrap) with ~2.5mm diameter solid #500 mesh. Only tank vent is next to the wick. Second time vaping to the bottom of the tank and have had no issues with wicking/pressure. I am sorta like'in this set-up.... I am not sure if this is optimal, (not a lot of posts on ribbon wire), but its working really well.

 

tmcase

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I just wrapped a coil on an AGA-T. The wire is ribbon Kanthal DSM (.5mm x .1mm) Resistance 9.09 Ohm/ft, so its fairly close to 30g A1, the width is more like 24g and the thickness is like 38g.

Interesting vape. Heats up like 30g. Vape is very smooth. Lots of wire surface directly on mesh surface.

Used a drill bit for coiling. Oxidized the wick once, lightly. Tweaking the coils is a little more difficult to do than with round wire. This is running at 2.2 ohms (6 wrap) with ~2.5mm diameter solid #500 mesh. Only tank vent is next to the wick. Second time vaping to the bottom of the tank and have had no issues with wicking/pressure. I am sorta like'in this set-up.... I am not sure if this is optimal, (not a lot of posts on ribbon wire), but its working really well.


I'm wondering if the flat wire, being that there is more surface touching the mesh, if this ribbon wire creates more chances for hotspots.
 

gdeal

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Yea I thought that it would be a PITA to wrap and tweak for hotspots too, but drill bit method worked really well. The wick I used here was pulled from my Scubaqu set-up I posted over in BJ43's thread (http://www.e-cigarette-forum.com/forum/modding-forum/355145-new-dans-scubaqu-only.html). The wick looks a bit toasted on the top because that was the section that I had in the pyrex tube.

Here's a link to a short vid i just took.

http://img15.imageshack.us/img15/1165/xjhizwqktirrnlxjbiydwf.mp4
 

studiovap

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At Last a Super battery efficient Genesis setup !!!

Anyone who has seen any of my DID or AGA-T set-up post will know I’m not a fan of high ohm coils mainly because I pretty much only use my mechanical mods now, primarily the Paps, and although it is still pretty compact in 18650 mode I just can’t love even that because of it’s long length and weight, call me a winger, but as time goes on I want a more and more compact unit, especially when out and about.
My Zmax although tough and powerful just feels like a truncheon, and now lives at home most of the time.
What I am getting at is I love the Paps in 18350 mode and like it a lot, although less, in 18500 mode, but my low ohm set-ups have been hovering around the 0.7-0.9 Ohm mark and the battery life in 18350 mode is pitiful and only slightly better in 18500 mode.
I had been using #500 mesh 75-100mm length rolled semi tight to around 3mm diameter 4-6 wrap 28g Kanthal or Nichrome with the adjustable tank breather screw I developed to ease vacuum lock while wicking.

I have recently been on a power efficiency mission hoping to get some decent runtime out of the 18350s and 18500s, and I really think I have cracked it.( I don’t take all the credit, as all I know is through AVF ECF and my own experimentation)

How about a 10watt 1.4Ohm setup with fill screw in, that vapes more consistently, produces as much vapor and flavour as a 20watt 0.7Ohm #500 mesh 75-100mm length rolled semi tight to around 3mm diameter 4-6 wrap 28g Kanthal or Nichrome with the adjustable tank breather screw?


Here it is, I know it’s not as pretty as my other set-ups, but that’s partly because I’ve run over 15ml of 90% vg Royal Blend e-liquid through it before posting , just to make sure this is not a fluke, and that it has durability.

8287627568_9ba43e051d_z.jpg




Setup is on an AGA-T, it has a 4mm countersunk wickhole with a 3mm glass insulator (cut from a 4mm fuse, then sanded to remove any chips or roughness with about a 3-3.15mm internal diameter, and I will add that it is not subject to massive temperature or stress with this setup, and shows no signs of stress fractures or chipping) 6 wrap 30g kanthal minimal pitch coil on 65mm of #200 mesh, rolled quite tight to 2mm (or tooth pick/qtip diameter) with tiny center hole.


8287627382_bb79db9dff_b.jpg




So far all I can say is this really rocks, and I never would have thought this would be my goto setup, but until I find anything that is even better all my super low ohm gennys are going unused & gathering dust.
 

Cyrus Vap

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nice studio, how's the 'pure' wicking? I'm glad someone else has tried a low mesh number and been impressed with it, I do love my 400 and 500, but somehow I've always been able to get 270, etc to work without tipping. Probably the case that if you use 'enough' of the lower number mesh it compensates for the lesser intrinsic capillary action
 

gdeal

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I thought I saw a spreadsheet telling how much mesh to get a certain diameter wick. I can't seem to find it, does anyone know what post it was in?

Try Tomcatt's PV App's PV Web Apps The calculator you are looking for is at the bottom of the page. It will provide you with the theoretical maximum length of material if rolled superman tight.
 

studiovap

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Just a quick post to tell you folks where I'm up to with what is my optimum setup.
#200 mesh (cut at 45 degrees),U-wick 4wrap 28g Kanthal 0.8 Ohms on a mech mod.
40-50 mm width x whatever length needed for the u-wick.(i usually find around 90mm is what I use)
unoxidized wick, rolled solid'ish' ( just lightly flamed to remove machine oils,not glowed any shade of red), pulsed and poked to remove hotspots ( this takes more care than the same practice with the #500), usually tightening coil once or twice towards the end of setup. Then I run wick and coil while still in the Atty under piping hot running water for a couple of minutes, then hold atty upside down and use paper towel to soak up water from u-wick before dropping juice on the wick for final testing, then fill vape and enjoy the purest most saturated flavor and best vapor I've experienced.
I have modded AGA, AGA-T,DIDstd & Mini DID all to take a U-wick by boring out an existing or new hole.
the #200 is so flexible you can coil it with only one end of the wick in place then insert the other end.
the positioning of the positive post/coil leg connection is a little trick at first, but after a while it's easy.
The #200 U-wick does not have the same capillary action as the #500, but doesn't need more than a 4o'clock tilt, which is my natural vape angle anyway. the wicking gets better stick after initial break in, and DOES NOT BUILD UP GUNK like the #500 and develop that gunky crappy taste that goes with it. I have run 80ml of dark tobacco juice through this wick and coil picture below, and only had to do a light dry burn and rinse under the piping hot water, before soaking the excess water up and refilling. I'm vaping that setup as I type and it's still sweet as a nut and bombproof to boot.
The throat hit is stellar also, at 0.8 Ohms at 3.7v under load that's around 15-16 watts of rich warm clouds.
I've posted the thread content from my AGA thread this time last month about this very coil and wick.
I can safely say it endures and endures, and endures.
Since building the coil below was such a revelation, that has lead to me modding another 5 of my prized gennys to accept the hallowed U-wick, and the unoxidized wick is definitely safer and better tasting.
Enjoy :)

From my thread posted 06/2/2013:

Wanted to try a U-wick, so pulled out the sad old AGA from the first Co-op, drilled 3.19mm holes for wicks, 2.5mm holes to tap to M3 for decent ground connection and fill hole screw, cleaned the top plate and polished back.
Set up a 0.8 Ohm 4wrap 28g Kanthal coil on a 40- 50mm x 90mm #200 mesh U-wick.
I had already reshaped drilled out and ground the topcap, and replaced pos post and nuts with one from DUD.

Superb flavor, Impossible to get a dry hit. :)

What I started with.

8447276493_8731f86e14_h.jpg


The modding and wick set-up

8448391024_45ebb5177f_k.jpg


The dryburn and quick test, size in 18650 on the Paps

8447277043_12ae1175bf_k.jpg
 
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Jethead

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What atty is that?

Thanks!

so did some reading, and found my answer
studiovap i thank you for posting this
"85mm by 37.5mm for a wick with a center hole (this does not require a tank breather fill screw is in place) and has a small gap around the wickhole to reduce adhesive forces in the juice between wick and hole. Wick diameter 3.0-3.2mm, wick internal hole 18g fill needle size."
coiled a 3mm ss tube, monted it. prepared my wick to studiovaps suggestions, getting a clean 1 ohm.
filled with juice. nom nom nom lol pure bliss (most used word for a good vaping device i notice so i follow suit) here are pics of the coil all glowing evenly lookin tidy too :) 28g kanthal was used with 500 mesh
7C4531E9-DFC2-4D47-8677-285887CF170E-20590-00000E76A4CE7F60.jpg

3A536278-4D33-4BD5-8A1C-A32644577B64-20590-00000E76A8F675EB.jpg

thanks rick , emonty, and studiovap for the help
 
Inspired by many threads like this and by Todd's table (http://vsf.pl/tmp/RebuildableAtomizerWickSizes.pdf - thanks Todd) I started to create something like this: mesh table (page is on free hosting - sorry for top banner). The original page is in polish, but I translated (it was very quick translation - sorry for mistakes) part of it in order to know your opinion:
- are you interested in?
- would you like to add your setups to the table?

If YES please post your setups according to the template:

1. Atomizer:
2. Mesh #/Height/Width:
3. Wick-how done:
4. Coil [wraps/wire]:
5. R of coil (if measured):
6. Liquid type:
7. Notes:
- vapor:
- flavor:
- strength:
- other:
8. Author:

Example:
1. Orion 2.1
2. 400/3/5.5
3. Rolled without help, oxidized before and after (about 1 min.). Burned with juice 3 times
4. 4x30G
5. 1.1
6. 100% VG
7.
- big and dense
- very nice
- high
- my best setup for Orion so far
8. Ezah


PS. Sorry for my language - please correct mistakes.
 
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