Vivi Nova Rebuild tutorial

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Gdeal

Here is the unsteel wooled 28 expanded.( I took it yesterday & the steel wooled 28 from this morning got removed to to do the pure nickle demo & did not get an expanded image done.)
tcXQu.png

It may not be precisely accurate due to it pulled off one post during the unravel process :ohmy: & thus was retightened down. But I doubt that the reclamp was much different in length.

More resistance now 2.12 than it did before @ 2.06/7 (unsure if reclamp was @ play)

Here is the 32 pure nickle expanded.
hV4jz.png

.58 coiled becomes .63 expanded

I suck @ math & numbers. Here the specs of it:
Ni - 200 . Minimum 99% Pure Nickel.
Resistance- 0.95 ohm/ft 3.12 ohms/m

I did not measure it exact but a tad bit more than 6 1/2 inches were used.

I do think it could be possible (somehow:unsure:) that most of surface area gets used in a all coil crunch & thus it does not become a hard short.

It seems that most coil shorts that have destroyed battery mods that I have read about were not coil touching shorts, but the coil grounding unintentionally on a terminal post. I have little reference experience though.

8N9cC.gif
 

j4mmin42

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This is really interesting stuff. The one that really got me was the safety-pin-through-the-coil test, I mean, it's possible that a bit of oxidation could've create a result like that- but the coil you used looks pretty new, shiny and conductive to me.

I really hope someone with an uncommon gift for explaining this kind of stuff browses through and can give us a 5-star explanation for it...because I'm at a loss here. Again...really interesting phenomena.
 

xMackx

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I just ordered some 100 ft. spools, pure nickle nr wire, 30 awg kanthal and 32 awg nichrome. I was getting tired of not having any room to work with the 33 gauge kanthal at 17.6 ohms per foot without nr wire. Plus I'm planning on getting a genesis style clone later this week. I almost ordered some 28 gauge but figured 30 was plenty for what I want to do.

Also I got an idea from someone that using glass beads (arts and crafts) can work great for insulators to keep things seperated in tight spaces such as the vivi nova's. I'll update with that experiment when I get my different gauge rw's.
 

mrelwood

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the coil you used looks pretty new, shiny and conductive to me.

"Looks conductive"... funny!

MISTer E, I watched your videos. A few things comes to mind:
1. The meter you are using is rather slow, and with the quick squeezes you made it wouldn't have time to react even if the resistance changed drastically.
2. You are not squeezing the coil in a manner that it would get a proper contact.

Please see this video for further explanations on what happens with awg 32 kanthal:
Heater coil measurements - YouTube
 
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gdeal

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"Looks conductive"... funny!

MISTer E, I watched your videos. A few things comes to mind:
1. The meter you are using is rather slow, and with the quick squeezes you made it wouldn't have time to react even if the resistance changed drastically.
2. You are not squeezing the coil in a manner that it would get a proper contact.

Please see this video for further explanations on what happens with awg 32 kanthal:
Heater coil measurements - YouTube

That was a cool video. :toast:

Very well done and to the point. Did you create this or just publish it to youtube?
 

mrelwood

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That was a cool video. :toast:

Very well done and to the point. Did you create this or just publish it to youtube?

I made it. Come to think of it I should propably change the background music to something I own the rights to. I usually just make videos for our family where distribution rights are not an issue.
 
mrelwood thank you for spending the time to do that video. (stomp box in on floor = a fellow guitarist :headbang:) It was very helpful & led me to a few possible new clues to some of what may be going on.

I now am led to believe that the "Spin E" coils innate strength due to small wraps holding firm under pressure makes the "Spin E" coil vastly superior in its short protection abilities.

Here is some of my observations on standard coil flimsy lateral collapse syndrome (in a pinch).
The starting line up
as6yR.png


A standard flimsy coil, if still on its mold rod, when pushed, no lateral collapse happens.
vEsXK.png


In this video @ about 10 seconds in with the sound turned up, the collapse is audible.
<---click for video

The collapse skips over some coils
HbE8u.png


Even more collapse & lateral movement on the more commonly used 32 AWG
fA6eq.png


Lateral movement is the enemy of of the standard coil & thus the "Spin E" micro wraps give it vastly superior strength in all directions.
<---click for video

I have a multimeter & did not use it because of no firm clamping & thus often reads ohms spastically. The ohm meter I used is slower but not much. In the video below one can see the reading jump quickly(not as fast as multimeter) on a standard coil. I feel that the innate spring back effect is much stronger in the "spin E" & thus a pinch is hard to seat as solid a connection as a standard coil when squeezed. I also think the vast amount of coils reduce the short as well, making it much less extreme than the standard coil.
<---click for video

During a collapse a short happens when a standard coil is squeezed(as seen with its assembly rod holding it firm laterally.), but it is not a hard short. The many wraps & difficulty of pushing the spingback effect together in the "Spin E" make it safer.
<---click for video

I still think some magic maybe @ play causing the electrons to travel the whole length in a squeeze, but it is likely that a squeeze simply can not be achieved easily. Thus almost no ohm movement in this video(from the other day),
<---click for video
due to no even & fully seated coils touching fully flush. As a "Spin E" coil bends into an arch one side touches but the other does not.
siqpC.gif


In short(pun intended), Thanks mrelwood it makes more sense to me now. The "Spin E" coil is innately full of hard short protection that is lacking in standard coils.

8N9cC.gif
 
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mrelwood

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I have a multimeter & did not use it because of no firm clamping & thus often reads ohms spastically.

That is the key. In order to get a good contact with the coil, there must be enough pressure. The amount of pressure needed is affected by the strength and the surface treatment/oxidation of the coil material. If you don't get a proper contact with the multimeter prongs, you won't get a proper short when squeezing the coil a bit.

The coil you are using has quite a few wraps. One shorted wrap would only decrease the resistance by according amount, so in a thick lower resistance wire the difference is indeed quite small.

I still think some magic maybe @ play causing the electrons to travel the whole length in a squeeze, but it is likely that a squeeze simply can not be achieved easily.

Believeing in magic or religion is really is not needed to explain what happens when a stiff resistance wire shorts or doesn't short.

Replaced the backing track on my video:
Heater coil measurements - YouTube
 

gdeal

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I made it. Come to think of it I should propably change the background music to something I own the rights to. I usually just make videos for our family where distribution rights are not an issue.


Wow. Impressive. That could have been a professional technical video from Sanvik.

I think you are ok on the music background, if you are not using the video for commercial purposes.
 

j4mmin42

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"Looks conductive"... funny!

MISTer E, I watched your videos. A few things comes to mind:
1. The meter you are using is rather slow, and with the quick squeezes you made it wouldn't have time to react even if the resistance changed drastically.
2. You are not squeezing the coil in a manner that it would get a proper contact.

Please see this video for further explanations on what happens with awg 32 kanthal:
Heater coil measurements - YouTube

You're just screwing around, right?

Because if not, note that i was hoping for someone to comment on this who had an "uncommon gift", not an uncommon propensity for being a d-bag.

...and after all the comments you made, you haven't really brought anything new to light...:blink:
 
mrelwood your wording seems only self serving(as is mine often too) & you seem to avoid any kudos to me on any of the discoveries in my last post.

Your first paragraph seems to center on that I did not use a multimeter. The AC7 on the mod ohm meter has the wire firmly seated & oxidation was removed with steel wool in the videos from today. Fact is lateral collapse doomed the standard sized coil & made it hard short in your video. The tiny "Spin E" coils structure & its many wraps seems to avoid hard shorts.

You seem hostile often with people here & thats OK with me. Extreme skepticism is a often positive on the topic, but not toward the skeptic. I just say this because I want you to know how you are being viewed from my side. I know I act like a fool & am wacky cant write well ect. We both have our places in this world & I enjoy your skepticism deeply. I just feel like you often want to fight in your responses(which is fine if that's the case). I ignorantly & egotistically expected a glimmer of an ego stroking for the long time spent on my apparently weak efforts to get the answers I sought & your reply has an odor of mr knew it all the whole time & MISTer E did not listen, which is seen as BS by me.[If that's the case])

Your second paragraph is very true, but leaves out spring back effect being stronger in the "Spin E" coil, soo much that one would likely need to heat set the pinched coil to get them to actually touch fully flush & not spring away with no pressure applied. & that if pinched it arches & thus connectivity still happens because the full wire must still be traveled due to no fully flush coil contact all the way around.

I was attempting to be silly by using the word magic. Mostly because I do not know exactly how the path of the electrons would precisely travel in an arched "Spin E" coil. My gif image representation
uDHlo.gif

is not 3 dimensional enough for my logic & thus I said "some magic maybe @ play" NOT that magic is @ play. I simply often label the unknown with what I deem funny(sorry if I offended you). I do not believe actual BS magic that can not be explained by supernatural forces is happening in the coil. I chose the word magic, because it rhymes with logic.

You seem like an argumentative reddit atheist jumping down the throat of someone saying merry xmas or bless you. I do want to assure you I not using the word magic to avoid some reality you have dropped here. It is simply because reality is not fully comprehended in how the electrons spin down a pinched "Spin E" coil "one side touching arch" that short much less(partially due to many coils). (& in earlier post even less was known to me.)

I enjoyed the music in the new track you put up. I can tell by its structure that you have a very solid & complex grasp on music science as well as vapor science.


8N9cC.gif
 

xMackx

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Mister-E I think you made a good point with saying the smaller the loops the less wire is touching and is tighter making it more stable so they don't overlap. That makes sense now since my touching coil wraps were about 1.5-2mm, I wrapped a large coil and tested the ohms squeezing them and they overlapped and shorted and ohms went down. I think you may have pointed out the reason for the phenomena.
 

gdeal

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This may be one of those things where the way you are testing does not actually represent a real world experience. The test meters don't really put out much power. So when we do apply power to the wire what is different than the test condition?

I think (not for certain) that two effects may be at play here. Resistivity and Thermal Expansion.

1) Kanthal A1 resistivity can increase up to ~5% at max operating temperature from ambient temps. More so for other versions. (I believe for nichrome this can be up to 15%!)

2) As Kanthal heats it expands. (There is an expansion coefficient that requires some math...ugh.)

Lets take a coil that is in a rounded shape like MISTer E's above with the flashing lines, If the initial path of least resistance is to short through the touching inner part of the coil, they will get hotter than the outside, non touching parts of the coil. As the touching parts of the coil heat, resistivity becomes greater. So it seems that more current will try to find its way to other parts of the coil. And as it heats it may expand to reduce/eliminate the short.


This is for consideration, it may be completely off base and there may be other factor and even if these factors mentioned are relevant, the effects may not be significant enough to really make a difference. :)
 
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xMackx

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This may be one of those things where the way you are testing does not actually represent a real world experience. The test meters don't really put out much power. So when we do apply power to the wire what is different than the test condition?

I think (not for certain) that two effects may be at play here. Resistivity and Thermal Expansion.

1) Kanthal A1 resistivity can increase up to ~5% at max operating temperature from ambient temps. More so for other versions. (I believe for nichrome this can be up to 15%!)

2) As Kanthal heats it expands. (There is an expansion coefficient that requires some math...ugh.)

Lets take a coil that is in a rounded shape like MISTer E's above with the flashing lines, If the initial path of least resistance is to short through the touching inner part of the coil, they will get hotter than the outside, non touching parts of the coil. As the touching parts of the coil heat, resistivity becomes greater. So it seems that more current will try to find its way to other parts of the coil. And as it heats it may expand to reduce/eliminate the short.


This is for consideration, it may be completely off base and there may be other factor and even if these factors mentioned are relevant, the effects may not be significant enough to really make a difference. :)

The best alloy for resistance heating wire.
Common names for this alloy - Kanthal A-1 ,Alloy 875,Aluchrom 0 ,...
Maximum continuous temp- 2550 degrees F / 1400 degrees C
Resistance- 17.6 ohm/ft 57.7 ohm/m
Wire Diameter- 0.0071" / 0.18 mm
Wire Gauge- 33

I thought I remember reading somewhere that when in use the coil doesn't come near maximum continuous temperature, at the highest guesstimate while wet between 200-300 F? You make a good point about heat expansion. It seems a lot of what we're figuring out is that there are several variables at work. I like talking with you guys, I'm learning quite a bit. :)
 

mrelwood

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MISTer E and others. I apologize if my wording seems or has seemed attacking, disapproving or without respect. There is a big difference in my language and english in how criticism, guidance, neutral commenting and suggestions (or even humor) is given. So a word to word translation would often sound offending. I don't yet know how to translate all the "between-the-lines" or "meta data" in a way that would let me be understood the way I mean to. I have propably also failed to seal my personal emotions away from typing, since I'm having a big fight with my fiancé at the moment that does make me very agitated. That doesn't make it right to take it out on anybody, and if I have done that, I am sorry.

MISTer E. I admire the amount of time and work you have put on testing, taking photos and videos, and making your posts an enjoyment even just to look at. I do think you have come to the right conclusion, but your suspicions for the reasons did not seem fully science based. You seem to have an inspiring imagination, and it might slightly preceed your knowledge of electronics. Nothing wrong with that, but I'd rather leave also a slightly more factual resolution in the thread for later readers. I do notice that sounds harsh, but I don't quite know how to put it in a gentler manner. I build/rebuild/fix electronical devices weekly, sometimes daily for my work. That is not something I want to brag about, and it doesn't make me an expert on this subject, but it does mean that I have pondered and studied on some aspects of electronics earlier on.

I was attempting to be silly by using the word magic.

I'm sorry I grabbed on the wording too hard. I failed to read it the way it was intended. Perhaps someone should kick start my humor glands back to life...

I enjoyed the music in the new track you put up. I can tell by its structure that you have a very solid & complex grasp on music science...

Thank you for your kind words. I'm glad to hear it has brought enjoyment.


Again, I'm deeply sorry to everybody if I've been harsh/mean/obtrusive. Feel free to slap me if we ever meet. But please not while I have a PV in my mouth...
 
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gdeal

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The best alloy for resistance heating wire.
Common names for this alloy - Kanthal A-1 ,Alloy 875,Aluchrom 0 ,...
Maximum continuous temp- 2550 degrees F / 1400 degrees C
Resistance- 17.6 ohm/ft 57.7 ohm/m
Wire Diameter- 0.0071" / 0.18 mm
Wire Gauge- 33

I thought I remember reading somewhere that when in use the coil doesn't come near maximum continuous temperature, at the highest guesstimate while wet between 200-300 F? You make a good point about heat expansion. It seems a lot of what we're figuring out is that there are several variables at work. I like talking with you guys, I'm learning quite a bit. :)


Same here on the learning xMackx. There are so many things going on here, it can be a never ending pursuit, but all so interesting...

You are about right on the range for an optimal operating temp for the atty. But if you incur a short, the temperature will flash-up significantly at the short location. That is why when you are vaping and if you have a coil shift and short, you can get that oh-so nasty taste. You are flash frying your juice. What I was trying to describe was a time based series of micro shorts. Creating a loop effect of resistance/heat that self defeated and then repeated. Really I am just speculating.



Mrelewood - all good with me. I have many business dealings with Scandinavian companies, so I get the culture/translation thing. By the way:

"Feel free to slap me if we ever meet. But please not while I have a PV in my mouth..."

That is a keeper and translates into any language. Hope you work things out with your Fiancee.


This is really interesting stuff. The one that really got me was the safety-pin-through-the-coil test, I mean, it's possible that a bit of oxidation could've create a result like that- but the coil you used looks pretty new, shiny and conductive to me.

I really hope someone with an uncommon gift for explaining this kind of stuff browses through and can give us a 5-star explanation for it...because I'm at a loss here. Again...really interesting phenomena.

J4mmin42...I felt the same way with safety pin thing...You are also spot-on with getting a 5-star explanation. :thumb: We need an expert here. Perhaps we should put a bit of peer pressure on MISTer E to start a new thread so we can get it directly in front of those experts? It is starting to keep me up at night...

MISTer E - As always, your graphic presentation work is outstanding. I really need to figure out how to make my pictures move like yours.
 

xMackx

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Same here on the learning xMackx. There are so many things going on here, it can be a never ending pursuit, but all so interesting...

You are about right on the range for an optimal operating temp for the atty. But if you incur a short, the temperature will flash-up significantly at the short location. That is why when you are vaping and if you have a coil shift and short, you can get that oh-so nasty taste. You are flash frying your juice. What I was trying to describe was a time based series of micro shorts. Creating a loop effect of resistance/heat that self defeated and then repeated. Really I am just speculating.



Mrelewood - all good with me. I have many business dealings with Scandinavian companies, so I get the culture/translation thing. By the way:

"Feel free to slap me if we ever meet. But please not while I have a PV in my mouth..."

That is a keeper and translates into any language. Hope you work things out with your Fiancee.




J4mmin42...I felt the same way with safety pin thing...You are also spot-on with getting a 5-star explanation. :thumb: We need an expert here. Perhaps we should put a bit of peer pressure on MISTer E to start a new thread so we can get it directly in front of those experts? It is starting to keep me up at night...

MISTer E - As always, your graphic presentation work is outstanding. I really need to figure out how to make my pictures move like yours.

Plus 1 on the great graphic detail on Mister-E's pics. We should ask what he uses to make his pics so we can be as visually stunning with our mods/investigations.
 
xMackx thanks for the kind words. I love learning about all I can about vapor too & this thread especially has been a gold mine to my vapor education.

I use a canon SX130is that I got for free in a marlboro contest. I really like it & likely would not have ever spent that much money for one(I did buy a tripod.) So I guess I can say I got one beneficial positive back from the analog peddlers whom reaped my money for soo long.

I would like to warn image takers. If you take images especially close up ones of vapor rising off atomizers. Build a cheap contraption to protect the lens from splatter. My set up apparatus for that stuff consists of a small microphone stand clamping a duct tape edged small glass from a tiny picture frame.
72Nn4.png




Gdeal

I think (not for certain) that two effects may be at play here. Resistivity and Thermal Expansion.

1) Kanthal A1 resistivity can increase up to ~5% at max operating temperature from ambient temps. More so for other versions. (I believe for nichrome this can be up to 15%!)

2) As Kanthal heats it expands. (There is an expansion coefficient that requires some math...ugh.)

Lets take a coil that is in a rounded shape like MISTer E's above with the flashing lines, If the initial path of least resistance is to short through the touching inner part of the coil, they will get hotter than the outside, non touching parts of the coil. As the touching parts of the coil heat, resistivity becomes greater. So it seems that more current will try to find its way to other parts of the coil. And as it heats it may expand to reduce/eliminate the short.



AAAAmazEEEEEng :)

I had read about Kanthal thermal ohm fluctuation & did not think of applying such information into the equation nor did I take the the next step further in my visualizations of how the path of electrons travel to arrive @ how the heat makes them react within the hot resistance wire.

I doubt I could ever truly get an accurate mental image, but your Kanthal thermal ohm fluctuation within in a hot arched "Spin E" coil makes my logic FIRM! (I do still like dragons though & no logic is good for that. (magic is ;)). I lived in a cave for a few years & was called puff by the inhabitants of the isle.)



mrelwood I did not even remember that you are from Finland. I now appreciate your skepticism even more & can comprehend your apprehensiveness to magic & religion taken as solid fact. I sometimes think America is religion & mumbo jumbo voodoo make believe capital of the world & I easily could have been serious by being American. We have not conversed much & I think I now completely comprehend & appreciate why you called my use of the word magic out.

I am a recluse hermit & have been since childhood. I only went to school for 8 years as a child & did not attend most days. I am also in real life what I accused you of being. In real life people avoid me because I am soo skeptical(& I like it that way:)) Here on ECF & whenever I attempt to write, I am a completely different person whom is somewhat tolerable to put up with, or even likable to some ;) I may be a little jealous of how you can be a hard skeptic in your writing & I can only do it in my hermit like isolation like a coward. I even click "like" on everything here to let me know I have read stuff & even click like on stuff that makes my brain boil. I also do it because I fear offending people here. I am a flip flop fool often, my Fin friend. Without your skeptic reply #547 to xMackx I would not have learned all I & :toast: all here have since then (as we did!)

I really like that you are my friend & are from Finland(I am a tad bit Fin). Slapping a Laplander for skepticism would be like slapping a reindeer for seeking &/or eating lichens. Not ever going to happen ;)

8N9cC.gif
 
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