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Silica on a Genesis
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Don Offline
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Post: #1
Silica on a Genesis
The Fogatti clone just isn't doing it for me. It has a 1 ohm coil and I'm not wild about going lower on 18350s that I don't know if they are IMR (Torchy 18350) or not. The mesh wick or the coil just aren't producing enough and my guess is wicking so I'm wondering about 2mm silica in a Genesis. The wick holes in the foggy clone are pretty narrow but I think I can stuff 2mm silica in there.

I can try another SS mesh wick but I'm wondering about alternatives.

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09-02-2014 07:06 PM
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gords1001 Offline
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Post: #2
RE: Silica on a Genesis
I've done a few cotton builds on genesis atomisers.  My only issue is that the cotton swells, fills the wick holes and filling becomes a bitch. Torchy cells are definitely good at .8ohm, they don't get hot or anything, they dont warm at .6 ohm tbh but to me thats pusging it a bit.

What pg/vg ratio are you using?

You could try a hybrid wick. Use a touch less mesh, roll a very thin loose cotton sausage wet the cotton then roll the mesh around it.
(This post was last modified: 09-02-2014 07:42 PM by gords1001.)
09-02-2014 07:40 PM
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Don Offline
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Post: #3
RE: Silica on a Genesis
I'll give that a go. On the home-brew about 50:50, on the bought stuff, most of it is 70PG:30VG or 80:20. No really thick stuff. There's a separate fill hole so swelling isn't too big a deaL.

Thinking a lot less mesh with cotton in the middle - just tried stuffing 2mm silica in there, it's too tight a fit really.

It did have a U mesh wick till I recoiled it and I couldn't stuff it back in. 

I think it needs the U wick - the wick holes are under 2mm.

I imagine you torch the mesh first. Can't see torching cotton.

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09-02-2014 07:47 PM
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gords1001 Offline
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Post: #4
RE: Silica on a Genesis
Yeah. Have the mesh fully prepared. Are you getting dry hits or over wicking? Should have asked that before
09-02-2014 08:00 PM
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Don Offline
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Post: #5
RE: Silica on a Genesis
Just next to no vapour. I can recoil it with ribbon and am prepared to go to 0.8 or thereabouts. I'm suspecting wicking but no dry hits, just very little vapour. I can't put the atomiser on anything else as it's a hybrid.

Edit:
According to my (very battered) Fluke with stock leads, it's pulling 2.51A but will be more than that without a meter in the circuit. It makes the right noises, just doesn't produce enough (IMO) vapour. 

This is a bit past sensible on an ICR 18350. If it's an IMR, that'd be fine but it is 3-4C which is double what's OK on an ICR.

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09-02-2014 08:05 PM
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gords1001 Offline
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Post: #6
RE: Silica on a Genesis
My two torchy 18350 cells are imr their 800mah, they certainly seem ok, their a couple of months old if that. Little to no vapour and no dry hits could be over wicking.
09-02-2014 09:44 PM
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Spasmod Offline
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Post: #7
RE: Silica on a Genesis
I have a feeling I know what's happening - What size wire gauge are you using Don ?

I'm thinking if you're using .32mm and it's touching the mesh it's gonna have a big ass delay in heating up using 18350's

When you hit the button with the lid off does it hiss and pop straight away ? if not it may pay to go to some thinner wire.

All of that is only a logical guess but worth checking Smile
09-02-2014 11:18 PM
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Don Offline
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Post: #8
RE: Silica on a Genesis
Now that's a thought Spas. I think a recoil and rewick is called for. And maybe a small sleeve of silica over the mesh at the coil. You're right, it is 0.3mm Kanthal.

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10-02-2014 08:47 AM
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Don Offline
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Post: #9
RE: Silica on a Genesis
Thanks Spas, you've cracked it. There's a much finer coil made of 0.15mm Kanthal in it now. It's also much higher resistance ($ ohms but that will be dropping) but giving it a couple of seconds to get going, vapour production is much better. Thanks again, you're a star Spas!

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10-02-2014 07:43 PM
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Spasmod Offline
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Post: #10
RE: Silica on a Genesis
I'm glad it's working better Don Smile great news. I just remember when I was playing around with a mesh wick I noticed the mesh sapping all the heat from the coil. I haven't done it myself but the silica sleeve sounds like a great idea.
10-02-2014 10:01 PM
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