Morning chanel. I'm a bit stuck as I don't understand the diameter that you're winding on. Did you mean 1.71 mm?
LMK.
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Morning chanel. I'm a bit stuck as I don't understand the diameter that you're winding on. Did you mean 1.71 mm?
LMK.
For a Protank coil on .07" with 29AWG targeting 1.8Ω not bothering can mean a difference of two wraps.
Just sayin'.
For most anything we build we can do a quick run through and gauge the length of leads for the wind we propose to build. You do it once and maybe a few times after use. You get a sense of what you're running.
With rda/rba it may be as much or more critical. With folks winding more outboard to access air leads are longer. The tendency is to drop wraps for most. Best to be sure what ya got.
Good luck.
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Yes 1.7 duuhhh...sorry 'bout that
Morning chanel. I'm a bit stuck as I don't understand the diameter that you're winding on. Did you mean 1.71 mm?
LMK.
Aha then I am good. If I set the leg length to 16 it sats 6 wraps which is what I am doing~
thanks Mac< I would not even know how to measure that
thanks Mac< I would not even know how to measure that
Yes you can do that Paul (but that would be fudging the statistic).
I've actually measured (yes I'm that ....) hundreds of coils on exit. Sadly, have done so periodically. I've found the mean to be about 16.25mm. About the best way to see how you are wrapping in terms of termination is to check a few of your own. Yes, there's a difference too. I recommend terminating in the direction of rotation which adds slightly to leg length (rather than straight down to insulator). This is measured from the point of exit of the turn for either lead. About 9 O'clock facing the axis of the coil. One will be slightly longer than the other. So were talking about a range here. Perhaps 16mm to 16.25. Some can go under (nut much). Conventionally wound coils can go considerably longer in both leg length and overall. If you wrap tight and terminate legs tightly that too will send you towards 16mm, and maybe lower slightly.
Good luck all.
If you ordered the .07" #50 from Suncoast that should be 1.778mm. It makes a slight difference. Good to now the exact diameter as you can fall on one side or other one wrap to many or not enough if you're a bit off.
Good luck.
For a Protank coil on .07" with 29AWG targeting 1.8Ω not bothering can mean a difference of two wraps.
Just sayin'.
For most anything we build we can do a quick run through and gauge the length of leads for the wind we propose to build. You do it once and maybe a few times after use. You get a sense of what you're running.
With RDA/RBA it may be as much or more critical. With folks winding more outboard to access air leads are longer. The tendency is to drop wraps for most. Best to be sure what ya got.
Good luck.
Thanks Mac,
Nice to have someone around to straighten my hiny out!
PS - looking at it that way, my 1.5 ohm coils are probably a wrap short.
PSS - If my calculations are correct, with the data I punched in I am probably 1 wraps off (please confirm if you can).
I have been doing a 6/5 wrap, 1/16 I.D. 30 gauge A1 Kanthal, .5" leg length and it tests at 1.5 ohms.
According to Steam Engine, I should be doing a 7/6 wrap if I'm shooting for a 1.5 ohm coil.
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Satisfy my curiosity Mac.
What sizes of drill blanks do you have? Everything I have except for 1/16 is .5mm through 4.0mm in .5 increments.
What sizes of drill blanks do you have? Everything I have except for 1/16 is .5mm through 4.0mm in .5 increments.
Dude I pull 'em out of my nose. Got 'em comin in from all directions. I'm mostly on W/G #50/51 for the KPT 2.28mm #44 and above for everything else up to 7/64". I try to split the major SAE diameters. I'm not so much about using increments to target resistance as finding optimal fit for specific wick media. Reason is that it's sometimes difficult to find the oddball sizes for some of us. Kind of why I stayed away from 2.5mm and love the Dremil drill bit kit with its forever common sizes. However, it looks like 2.5mm might possibly be the ideal fit for Nextel XC-116. I just got some in 2.5mm from McMaster and I'll be working up some builds opportunely. If it's as good as I think it might be well, we'll just have to make it famous right here on ECF.
Good luck.
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K, here's my answer (and reasoning)
Last build I did on 1/16' for validation as published in the tables was a while back for M, the OP, as I recall. It's a conventional micro...30AWG, 7/6 1/16" 1.5875mm i.d. (XC-132), m.c. = 1.57Ω. Typically a tensioned m.c. can come in typically at .2-.3Ω or as much as .5Ω below that of a compressed m.c .My read on steameng is 1.516Ω on the field rounded to "half wraps" as 6.5 turns is the actual for a 7/6. So I think the math is accurate on steam, just pick up the right line and interpretation. You may have to fudge the target res a thou or two to get the precise half-wrap. I do as I like to see the exact heat capacity in millijoules for the wind.
For all you reading, remember we install half-wraps anytime leads point in the same direction, full wraps anytime they run opposed like for a Kayfun.
I hope that answers the question. Your leg length at .5 would give you 10 wraps. Try 16-16.25mm (combined, both) in your calc's.
Good luck.
You just love confusing the H..L out of me don't you!
Thanks Mac, you da man!
I'm not understanding coil building to accommodate wicking media though?
Thanks Mac, you da man!
I'm not understanding coil building to accommodate wicking media though?
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You just love confusing the H..L out of me don't you!
Thanks Mac, you da man!
I'm not understanding coil building to accommodate wicking media though?
Your PV/Batt are your big block, the coil is your carb…the wick is your fuel line (pick the flow you want). The last should be your first and mostly what folks take for granted. Your vape is only as good as your flow.
Small tight coils and wicks with tight compression give excellent efficient output. That's why nano's work. But if you want density and volume you have to have more wick. Want to provide more power with a variable, you need more wick. For optimal performance there in a protank you need to max out. It would be great if we could go something bigger and they had cut the slot to 2.2mm. I believe it is in the PT3 up. Still only 2mm in the stocker Aero coils I've seen. Working with one right now in the monster which I was trying to post up tonite. Ordering some aftermarket PT d/c heads which I believe are 2.2mm.
Some discussion of this earlier in the thread. Perhaps either brook or f1ve can comment. Think they both did test builds when these came out.
Anywwaaay, that's the roundup.
Good luck.
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Misunderstanding on my part Mac.
I thought you meant media type, cotton, rayon, KGD, etc.
From A Galaxy Far Away
I thought you meant media type, cotton, rayon, KGD, etc.
From A Galaxy Far Away
So, can you actually taste a flavor difference between a .0625 I.D. and a .070 I.D. coil keeping all other variables the same? Speaking KPT. .007 roughly don't sound like much.
Just asking.
Just asking.
Probably not. But you know it could depend on the juice. We're talking about temperature here. And one small direction or another could mean the difference between discerning important flavor notes or making the primary or base flavor shine. We build for the device, true. What brings out the best of that tool in consideration of what we're cooking.
Nite Chuck.
Hello My Friends,
On my last couple of builds, 6/5 wrap-30 gauge Kanthal-.070 I.D.-1.5 ohm coil and Rayon. One had Grants Vanilla Custard 50/50 pg/vg and one had 5 Pawns, Castle Long at 50/50 pg/vg both at 6mg nic.
Both of my KPT2's were set up at the same time, and after maybe 3 refills I was tasting a hint of burnt. I pulled the coils just to see what was going on and this is what I found.
Both of the coils had gunk built up only on the outside edges or wraps, I pulled the wicks on both and they came apart from the middle out or halves on both almost like the center disintegrated. I really can't say they did, but that's how they came apart. The coils weren't run at no higher than 10 watts. Plus, both started with excellent flavor and vapor.
I honestly don't believe it is coil build. So if anyone can suggest a possible cause, please chime in.
As Always
CRG
On my last couple of builds, 6/5 wrap-30 gauge Kanthal-.070 I.D.-1.5 ohm coil and Rayon. One had Grants Vanilla Custard 50/50 pg/vg and one had 5 Pawns, Castle Long at 50/50 pg/vg both at 6mg nic.
Both of my KPT2's were set up at the same time, and after maybe 3 refills I was tasting a hint of burnt. I pulled the coils just to see what was going on and this is what I found.
Both of the coils had gunk built up only on the outside edges or wraps, I pulled the wicks on both and they came apart from the middle out or halves on both almost like the center disintegrated. I really can't say they did, but that's how they came apart. The coils weren't run at no higher than 10 watts. Plus, both started with excellent flavor and vapor.
I honestly don't believe it is coil build. So if anyone can suggest a possible cause, please chime in.
As Always
CRG
Hello My Friends,
On my last couple of builds, 6/5 wrap-30 gauge Kanthal-.070 I.D.-1.5 ohm coil and Rayon. One had Grants Vanilla Custard 50/50 pg/vg and one had 5 Pawns, Castle Long at 50/50 pg/vg both at 6mg nic.
Both of my KPT2's were set up at the same time, and after maybe 3 refills I was tasting a hint of burnt. I pulled the coils just to see what was going on and this is what I found.
Both of the coils had gunk built up only on the outside edges or wraps, I pulled the wicks on both and they came apart from the middle out or halves on both almost like the center disintegrated. I really can't say they did, but that's how they came apart. The coils weren't run at no higher than 10 watts. Plus, both started with excellent flavor and vapor.
I honestly don't believe it is coil build. So if anyone can suggest a possible cause, please chime in.
As Always
Not familiar with the density or pigmentation GVG but yes on 4PCL. I've got my hand up. Wavin'. You need more takers on this question familiar with CCR and perhaps both. Hopefully Bill will chime in as he is a real flavorist. Then I think he may agree with my eventual answer.
I assume no variation in resistance and no burny, charred or ashy taste from the outset. However, by the time of your take down draw was subdued and taste was ashy. More like a 5-7 day window.
Good luck.
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Everything from the beginning was great. Then all of all of sudden burn. As you said 5/6 days.
I'm guessing wick. It's just strange that it's only on the outer edges.
From A Galaxy Far Away
PS- no resistance variance.
I'm guessing wick. It's just strange that it's only on the outer edges.
From A Galaxy Far Away
PS- no resistance variance.
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A Google search on MacTechVpr ECF posts re cellucotton helped me retrieve this observation crg…
Good morning Mr. C.
What I can tell you is that CCR works spectacularly with some juices really bringing out the core flavor/s. For others it's a pigment trap and saturates (think soggy wet sponge) faster than any other wick media (hours). I believe, due to its fiber density and orientation.
So the fact that you're frying the middle of your coil suggests to me either over compression of the wick media; or, the equivalent has occurred due to volume congestion at the ingress to the media, i.e. you're shtucked. Now I doubt your initial turns are too tight but it's not impossible. You may be the better judge of the symmetry. That would leave the eliquid itself as the possibility. To run an isolation I'd replicate the build and run straight VG (the densest) through it under the same power conditions.
If you elect to undertake this mission MTV will disavow any knowledge of this conversation.
I found upping the power may help with some flavors pushing denser pigments through or periodically in combination with VG (dilution). This works with all synthetics and may restore some of the flavor quality. I surmise a clearing effect is taking place expanding the internal fiber spaces. But it's a stop-gap and an evident wick-juice mismatch.
Good luck Mr. C.
p.s. Don't think there's anything wrong with your build. I found upping the power may help with some flavors pushing denser pigments through or periodically in combination with VG (dilution). This works with all synthetics and may restore some of the flavor quality. I surmise a clearing effect is taking place expanding the internal fiber spaces. But it's a stop-gap and an evident wick-juic
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