Tensioned Micro Coils. The next step.

[Mactavish]

Bro, I was running 1 ohm net 28ga 2.5 mm duals between 25 and 28 watts for the last couple of months. I Just switched up to a single ~2 ohm 28 ga 2.3 mm single at 17 watts and its basically the same vape as the duals. I'm amazed. It pays to experiment. I believe a lot of it has to do with heat up time and slightly more surface area of the single coil by adding a wind or two.

I still run both sides of the AFC wide open and battery life is increased exponentially.

Edited to add: yes, my ID is hovering at 2.3 - 2.5mm but still making tensioned contact coils brotha.

While you're around... First a MERRY CHRISTMAS, appreciate all your help this year!

Finally found a product before you, well actually I saw your video a few weeks after I bought some Native Wicks, but I'm not sure when you posted that video review, oh well, I try.

Quick question, while I like the Pima cotton, I have difficulty getting it through my 3mm ID coils without some of the strand bundles getting caught and not ending up getting through, sometimes stuck in the middle of the coil, becomes a mess. Granted I try to get a good amount of cotton on my tank and RDA builds. But since you've been using it, thought you might have a tip? As you know, it does not compress or roll well in the fingers compared to KGD.

 

[super_X_drifter]

While you're around... First a MERRY CHRISTMAS, appreciate all your help this year!

Finally found a product before you, well actually I saw your video a few weeks after I bought some Native Wicks, but I'm not sure when you posted that video review, oh well, I try.

Quick question, while I like the Pima cotton, I have difficulty getting it through my 3mm ID coils without some of the strand bundles getting caught and not ending up getting through, sometimes stuck in the middle of the coil, becomes a mess. Granted I try to get a good amount of cotton on my tank and RDA builds. But since you've been using it, thought you might have a tip? As you know, it does not compress or roll well in the fingers compared to KGD.

Thank you my man. Same to you and yours.

Wether I use native or KGD I use a wick only thick enough to fill the coil with no shoulders or serious drag when I pull it thru. I don't use a thicker amount like some of those vids show - like those VCC dudes. That's just absurd how much they cram in there.

I'm back to KGD ATM cause I'm a freak like that.

Thank you again brother.

 

[MacTechVpr]

I definitely see your point, i went contact as the coils are 3mm id, i need the extra lung fill that i just cant get with smaller id coils, the option would be to go non-contact and lower the id to get the same heat concentration for my flavour but as said at loss of lung fill/length of draw. I'm still kind of new to this low res and TC configuration so any input is definitely taken on board.

That wire vice has been one of my best buys ever, its been so handy for so many dif builds, i was gonna buy a backup but the place seemed to have sold out since showing mac lol.

Glad to hear you can take advantage of this method Mac, i was also looking at upgrading my vice, putting a swivel inside connected to some strong thick wire going through the handle with a ball or something the other end then you could spin the vice making your wire without having to adjust your hand on the handle, would make life a lot easier and prevent the wire twist

On thick wire, I've looked around for one, a wire vice like yours, nada. Right now I use various grades of PV's for these tasks and a utility portable (suction) vice. I'm needing some kinda solution like that for fat wire and my fav configs...whether twisted lead center posts or parallels, eager to go heavy and make more of these particularly for the power boxes.

Here's an example of what I'm talkin' about with optimal contact area. Seemingly counterintuitive insofar as heat flux but really taking advantage of Nextel's alumina conductivity. Initial 25W Nextel burn in, a VW build on the IPV4 for a friend…

IMG_1618a

• MacTechVpr
• Dec 25, 2015

Tehnsioned Contact Micro Coil, MacTechVpr

IMG_1628a

• MacTechVpr
• Dec 25, 2015

Tehnsioned Contact Micro Coil, MacTechVpr

25x2 9/8 2.82mm=0.4985Ω

So agree with you slip on maxing out the contact area. Always try to opt to thicker for the quick solution. But it's been my surprise as I've built out tables (and tested them) that there are interesting upside power variations as you transition through the gauge overlap or intersections. The wind I referenced above was an example. There's an additional aspect to the calculation and that is wetted contact surface. That's to say what is the discrete power to the working surface. We can base the wire potential on total wire mass and assume convection but what matters is how effectively we mate it to the wicking media. So while I do wind multi-wire on occasion there's got to be clear advantage over a straightforward low profile build I can put together in a hurry.

Guess the moral of the story short and sweet like supe said sometimes the tight micro is boss and the numbers show it…if you're runnin' mech (most of my collection and rotation). But to take advantage of variables you''ve gots to go chunky.

Have a Merry.

 

[Aal_]

Bro, I was running 1 ohm net 28ga 2.5 mm duals between 25 and 28 watts for the last couple of months. I Just switched up to a single ~2 ohm 28 ga 2.3 mm single at 17 watts and its basically the same vape as the duals. I'm amazed. It pays to experiment. I believe a lot of it has to do with heat up time and slightly more surface area of the single coil by adding a wind or two.

I still run both sides of the AFC wide open and battery life is increased exponentially.

Edited to add: yes, my ID is hovering at 2.3 - 2.5mm but still making tensioned contact coils brotha.

Russ brother, since you are playing with regulated now, the rules of the game change, you can get whatever vape you like without any attention to ohms. Single or double, if wicking keeps up, as long as you got the surface area down, clouds of vapor all around ...

Merry Christmas to you and to all in this thread.

 

[super_X_drifter]

Russ brother, since you are playing with regulated now, the rules of the game change, you can get whatever vape you like without any attention to ohms. Single or double, if wicking keeps up, as long as you got the surface area down, clouds of vapor all around ...

Merry Christmas to you and to all in this thread.

Exactly bro! Thank you man and right back at ya !

 

[MacTechVpr]

Just wanted to wish all you still subscribing a Happy. Let ya know we're here to help if you need.

Good luck all.

 

[MacTechVpr]

Lifted from the thread Older Folks and Vaping Front Porch - Part Four | Page 272 | #5423...

Yes C but I am neighbor and happy new one to ya. And I suspect a great many of you are natives as well on this thread. Same to you all.

Just poppin' in here for a bit to point everyone to this current FL legislation thread...Florida HB 1143 ?…a submission which literally could outlaw vaping in many private and public spaces in the state. It's in committee right now, today. And just like the developments regarding Sales to Minors that resulted in the first vaping regulations in FL last year it relies on the states preemption of authority to make all law for the state regarding "smoking". In a duplicitously marvelous sleight of hand that authority is used to mangle the English language by decree to pronounce that any nicotine dispensing device IS smoking. This semantic and logical misconstruction is what opened the door to regulation in FL. It's being used now to impose the extreme, effectively prohibition.

Without public exposition there can be no sales, there can be no vaping community. There can be no persuasive demonstration to the public or prospective vapers as to the efficacy and safety of our activity. We are back in the closet marginalized and stigmatized…again! Out of sight, out of mind.

I urge every Floridian and every vaper to get involved in these developments. A great deal of legislative language has been tested in S FL waters and ultimately been used as model legislation in other states. Now is the time to see exactly how these legislators brew this black magic and shackle us with the consequences.

I've referenced FL House links as well as call to action notices by FASA and VISTA (CASAA has issued as well). I'm hoping someone will relay to these representatives that we will not allow this corruption of legal misconstruction to stand.

Thank you all and good luck.

 

[Aal_]

Guys, does anyone know if I can build a titanium tmc for temp control?

Spaced coils are not cutting it for me. I need more surface and easier wicking.

Titanium turns blue then grey again. I know I'm not producing tio2 but does it insulate itself?

 

[MacTechVpr]

Guys, does anyone know if I can build a titanium tmc for temp control?

Spaced coils are not cutting it for me. I need more surface and easier wicking.

Titanium turns blue then grey again. I know I'm not producing tio2 but does it insulate itself?

Just a quick nod on this one Aal. It's a good question. Vaped a number of them but haven't yet rebuilt using Ti. Titanium builds a passivation layer but it's not alumina. Somewhere slightly above 600F and it's not to our benefit. The gray is an indication of oxidation but the material composition isn't insulation (conductive). So no contact coil advantage. Can't speak to its adverse potential but I think Rossum did a study of this some time back and reproduced the oxidation all too handily. It can be dry pulsed though at low voltage to induce rigidity. The elec voltage makes it softer I understand and so responsive to compression. It would also follow that strain winding would be very helpful then rather than pulsing to force the geometry for either a spaced coil say wound on a screw or a bit. At least that's the way I'd approach it and avoid either torching or pulsing. Interested to see if you've tried tensioning Ti winds and would very much appreciate your impressions.

Good luck Aal.

 

[Aal_]

Just a quick nod on this one Aal. It's a good question. Vaped a number of them but haven't yet rebuilt using Ti. Titanium builds a passivation layer but it's not alumina. Somewhere slightly above 600F and it's not to our benefit. The gray is an indication of oxidation but the material composition isn't insulation (conductive). So no contact coil advantage. Can't speak to its adverse potential but I think Rossum did a study of this some time back and reproduced the oxidation all too handily. It can be dry pulsed though at low voltage to induce rigidity. The elec voltage makes it softer I understand and so responsive to compression. It would also follow that strain winding would be very helpful then rather than pulsing to force the geometry for either a spaced coil say wound on a screw or a bit. At least that's the way I'd approach it and avoid either torching or pulsing. Interested to see if you've tried tensioning Ti winds and would very much appreciate your impressions.

Good luck Aal.

Thanks mac. I have indeed tensioned but relaxed it to get spaces which makes the tensioning void. I do not coil with hand anymore. I did pulse without squeezing just to clean it a bit and of course at very low temperatures. Went from blue to grey so I guess still safe. It is disappointing knowing that no insulation can be achieved.

I saw the experiment of @Rossum where he reached the white layer, which is not we are looking for.

 

[MacTechVpr]

Maybe we need a new alloy. But you have to figure Kanthal's been around for almost a century. It's been used in a broad variety of applications specifically as a thermal conductor and for very good reasons. It's a very mature, well understood and trusted technology.

Good luck.

 

[super_X_drifter]

 

[MacTechVpr]

Nice work supe. I love verts. Is that…Kanthal? If it is you did a nice low-voltage job on burn in.

Good night and g'luck supe. Gotta bounce.

p.s. love that deck too, perfect for verts

 

[oplholik]

Looks like you are a master coiler now, nice work. What are you coiling on these days?

 

[super_X_drifter]

Looks like you are a master coiler now, nice work. What are you coiling on these days?

Thank you my man. I chuck a 2.8mm bit with the wire wrapped around it in my drill, then grab the free end of the wire, hold it under tension and activate the drill. Remove starter / over winds and it's perfect.

 

[super_X_drifter]

Nice work supe. I love verts. Is that…Kanthal? If it is you did a nice low-voltage job on burn in.

Good night and g'luck supe. Gotta bounce.

p.s. love that deck too, perfect for verts

Thank you A. Yeah man, that atty is made by Matt from the OG micro coil thread. He and that there atty are now the stuff legend. He says "hey".

 

[rgerber]

So tell me brother Russ. Does the Gizmo sit in the corner these days? You sold me on the CM 3 and tensioning with two needle nose. Works great for this Cranky Squonker.

 

[MacTechVpr]

So tell me brother Russ. Does the Gizmo sit in the corner these days? You sold me on the CM 3 and tensioning with two needle nose. Works great for this Cranky Squonker.

Hey rev…

Let me tell ya little story
'bout a man named Loud.
Bought a winning ticket
from the Vapors of a Cloud.
Came back later with the Ω
as low's could be…
but couldn't taste the vape
for all the heat ya see.

Fixed up his Tobh with a brand
new t.m.c.
This time strained from turns
to posts tightly.
Now his vape's cool as a
vapes 'posed to be…
and he's chuckin out the plumes
'cause of conductivity.

Moral of the story
is you need good oxidation.
Otherwise you'll suffer more
vaper...consternation.
Other's may look right but they're
only simulation.
To get 'em that there tight bro
you've gotta wind with tension.

Good luck.

Good luck.

 

[super_X_drifter]

So tell me brother Russ. Does the Gizmo sit in the corner these days? You sold me on the CM 3 and tensioning with two needle nose. Works great for this Cranky Squonker.

Yeah I have found that with the relatively light gauge wire I prefer (28-26 ga) I can not consistently get good coils using anything except a power drill with a 2.8mm bit chucked in it with the wire wrapped around the end of the bit before I chuck it down. Then I grab the free end of the wire with a pair of pliers and pull the trigger so the bit slowly turns while I'm keeping a consistent tension on the wire and the wire angled slightly back so it is nearly at the point of winding on itself.

Perfect coils like the ones in the pic 99% of the time.

 

[gt_1955]

Just like my lathe method posted earlier ... I get nice, consistent coils too