Good morning everybody . I'm new and researching ,first mech / build......

[MacTechVpr]

That is an awful lot of wire IMO. I rarely go over 7 wraps in my builds.

Of 22AWG mebe? But 7 turns is an awfully narrow surface area for the power at any gauge. Production at the expense of heat. Don't get me wrong, I run 7 in various gauges. Often as the odd-guage faster firing warmer alt to 8 turns of a higher gauge, i.e. 23vs24AWG. But this was originally an experiment on parallels (my bad, I think I encouraged @bood not realizing he was heading towards s.s.) which he did, enthusiastically to his credit. My suggestion of twisted lead parallels (with Kanthal) was to consider the high vapor density of such a build. With stable parallels you can up vapor output yet keep res appreciably higher than straight wire. Run s.s. and that's another matter. Yeah, lot of turns. But it doesn't have to be (if you go somewhat thinner Kanthal wire).



Good luck.

 

[bood]

fast update

so far all good

Anna, the 10% added water dilute subtly the flavor , in a good way ( but the vape is bits less smooth )
the vape is better and cooler , more airy , the flavor is a little better to me; the rdta different airholes and options help on flavor .and on my vape style too

My ss wire is 316l 26awg, coils were like 0.80/0.90ohm each, I made some 13/14 wraps coils (and picked up a pair 14), they may vary a little one from the other
@Ben85 I agree..its not pretty and a long build I've set here, but I couldnt do any better with this wire while searching for 0.4/0.5 ohm. I tried ss because kanthal setup >1 ohm took too much ( with my mech and my configuration at least ), to heat up and vape , so I just tried both a 0.5x2 ss and a 0.8+x2 ss configurations and kept the second build on sunday because it was the last installed. I'll do kanthal 0.4/0.5 ohm next w.e. ( ..0.25ohm ss build gave me some quite warm vapes; should i go any lower then 0.5 with kanthal? is there a way to go higher with resistance while having a lower heat up time? I wonder if any mech with >1ohm builds takes this much to heat up coils and produce a likeable amount of vapor; I'm a flavor chaser , vape on the cool side is ok lil warm is ok too, hot : no)

I will update in the w.e.

 

[bood]

before : I made 2 'contact' ss 316l coils, 0.85Ω circa each

after: I removed them , spaced them, reinstalled them (&cotton&rewick)

( same pair of coils)

 

[MacTechVpr]

Afternoon B. Kinda lost me with your last post. Unsure if when you cite the Ω you're talkin the net of x2 (dual-coil) or the single-coil res of the pair. Usually we talk net. I surmise given the net ~0.2Ω you got with the s.s. spaced parallel (?) after you took a turn off that you were runnin lower res than we thought. Yes 0.2Ω is hot in a standard spaced wind AND pushes the limits of most 20A batt's. It's clear tho you can handle your fair share of both density and diffusion. Just guessin, but I'd say a net of 0.4Ω might be a tad cool for you.

Based on specs avail for .5 and .6 metric wire at…Kanthal A1 Type Wire 0.60mm / 22/23AWG - Rebuildable Supplies…I'd target the zone between 0.3-.4Ω with 7-8 turns as per Steam-Engine. These should be fast firing and warm enough for you. I particularly like the fatter 23AWG (.60mm) currently and build just below 0.3Ω typically.

Don't know off hand if the metric screw sizes that conform to these gauges. But that would be ideal, to find 'em. Wound or actually formed tightly this way results in a very symmetrical coil (but not quite strained or tensioned which is elongation). Still beats the fiddly of tweaking manual spacing. Not even close to an oxidized contact but a lot easier to make and repeat !!! Don't run K-A1 unoxidized. Pulse it until it starts to develop some color. This hardens the wire making it both more durable and likely to retain its shape with repeated firing.

I'm eager to see you set up a standard you can consistently make work at the temp you like. A baseline to start from.

Good luck this weekend B.

 

[bood]

0.80-0.90Ω each-> 0.40/.0.45Ω parallel build
0.40-0.50Ω each-> 0.20/0.25Ω parallel build
these are the only ss coils-> parallel double coils builds , that I have made I have used and have at home . I think they are 6 or 7 couple of coils .

The 0.4/0.5Ω coils ( when I use the word coil or coils , I refer to each one , as for Ω values .. I guess I will use the word build to refer to the whole net ?) are contact ss coils; I never spaced them
I spaced just 2 coils from all the bunch I made, 2x0.8+Ω ss coils(0.4 or 0.45Ω net), and have not measured the net resistance after I spaced them , and these are actually the one I have installed and using -unevenly spaced, favouring the results against the not spaced same coils; I do not have any other coil or any wire here apart from the couple installed

 

[MacTechVpr]

ok, so you are good at .4Ω+. good sum up.

good luck.

 

[bood]

I could be better higher but I'm afraid of the heating time ( you know if is there a way or what material or anything else to shorten heating time -speaking about 1x18650 unregulated mod- besides lowering resistance ? )

 

[MacTechVpr]

All I know in one post…

Everything's a tradeoff in physics. Just as in cars, cooking, buying vape stuff!…etc. No magic bullet I'm afraid.

Reduce mass (turns) and/or aspect ratio (height, thickness) of the wire you'll get faster firing time. Sub thinner wire for the equiv res of fatter (parallels). Stabilizing the wire by elongation (strain) only very slightly reduces thickness but can be as effective.

Less turns (or thinner) and you lose wetted contact surface (exc for ='s) so you tend towards drier, thinner, hotter vapor (or with less pwr mebe unremarkable).

Best we can do B is use the tools we have to find some joy in the middle. Or we can just embrace our favorite attribute and pursue it with a passion. Make it the objective. At some point <smile> I know I'm gonna say somethin, in some way, that tips the scales.

Good luck.

 

[bood]

that's why I'm proud of having bet on these 0,8+Ω ss "long" coils .. I guess I went fast there , I wanted big surface area with a moderate but fast vape ; where it's supposed to be nearer to the best mech vape experience , supposely for me and someone else - but not everybody ( ie I'm not big clouds lover); I think surface actually widened not insignificantly with spacing the wraps
nevertheless I'm wondering if 3 4 seconds rampup time -at least- before vaping is normal and normal mech vapers life
and if I have to live with that

 

[MacTechVpr]

…I'm wondering if 3 4 seconds rampup time -at least- before vaping is normal and normal mech vapers life
and if I have to live with that

I would say def not. I'm winding 26 to 24 AWG parallels and they fire pretty instantly wet. And no, I wouldn't live with that either. Now if you're talkin' about dry firing and how long it takes to get to an orange-red color boundary that's slow or a very cool coil. For spaced in a couple'a three you're inside out red-yellow at center, at most.

From the pic you posted on the .2Ω (?) close contact…it popped pretty good. So not sure whatcha mean there B when you say ramp up.

Then again my exp with s.s. is very limited. I understand the response is very similar to Kanthal despite their res differences.

I'm a typical mech vaper and I'm listening for the crackle in the second it takes for the mod to travel from my ear to my mouth. If it's not loud by the time it gets there, I'm pullin' the cap on it.

If there's any lag at all it's on most of my variables as the chip does it's thing preheating or whatever. Except for my VV Noisy Cricket II's which rock like a mech (and the venerable ZNA30).

Good luck.

 

[bood]

I mean the time it takes to get the liquid vaporized (vaporized a decent amount , an amount useful to start vaping )

the justfog takes 1 second from fire,
my mech with a 0.45Ω circa build ( a 14 spaced wraps 316l ss build ,that's the one I'm using) takes 4 seconds even 5

 

[MacTechVpr]

Assuming you're using .4mm 316L….look at these figures from S-E for std single-wire wind and you're low on res. A short, contact somewhere. Make sure leads are clearly separated. Only thing quick to try I can thing of. But there's more to this.

You wound this as a 2-wire parallel, then split each twain of wires. Dunno how to predict that result. I've never separated ='s as you have. Me, I would've maintained 7-dual strands to space them.

If you look at the numbers for parallels you need 24-turns for .45Ω.

Clearly it's not working efficiently. I'd chuck it. Then do a serious baseline for 316L on that device with single-strand at your target res, tightly spaced as I earlier suggested. Draw it on tightly with a needle nose pliers.

It won't be adhesion, not tensioned evenly. But it'll be tightly symmetrical. Carefully pull out the turns manually from each side working towards the middle (right on the bit). Then tweak them as best as possible so they're equally spread. The tension you did add by bending them under some strain will give the coil some stiffness that will help maintain it's form over time. Pulse oxidize first until it starts to show some color. Make sure end turns are neat and tight matching the Ø of the rest of the coil before installation.

Take you a few minutes with a screwdriver and I think you'll thank yourself.

Good luck B.

 

[bood]

If you look at the numbers for parallels you need 24-turns for .45Ω.

my measure was before i spaced them..never did it after. the calculation for 316l 'round' shaped wich I used before winding them gave me more or less current n. wraps and that 0.45Ω along Coil wrapping | Steam Engine | free vaping calculators

 

[bood]

on the other end , the vapor suggests its quite efficient /after ramp up from idle..if I only could load a video here you would know better if there's a problem or not..
(and if positive, if its a 'normal' problem or an abnormal situation)

and... , when I installed the 0.2+Ω.build, it was faster
I would say ramp up heating time was ok , I could live with that

______
I saw some videos on youtube and it seems even 'pro' vapers (that is, reviewers ) sometimes start with a few seconds press to heat up a mech, then second press for vape . I noticed that rarely they use anything over 0.25 0.30 Ω, when vaping from a mech.

 

[MacTechVpr]

If I had to wait 4 sec's to get decent density out of vape, I prolly wouldn't be vaping. I'm gonna have to look back see what you built again. Just not right. My read is your res should be lower for what you're vaping. The spreader. I tried a few s.s. builds (for others) way back in the when, contacts as was insisted on. Cautioned they would be hot and were. They fired plenty fast. Don't think it was much thinner wire than you got. We'll see.

Good luck.

 

[bood]

I actually like the vapor I get. The best one is the very first vape, it tastes more fresh and more natural.
the second , third vape : i do not have to wait very much.

I will try a kanthal build @0.4 or so in the week end.

Then i will decide if to stay kanthal or s.s. next week. the spaced 14 ss produce a nice amount of vapor , and some decent flavor too if I adjust my vape to my atomizer airholes.

 

[MacTechVpr]

Well as I recall the .2 somethin one was hot but produced plenty of vapor. Just too warm for you. That was prollly workin right and maybe a bit tardy on the fire but expected for the mass. This one's a wonder.

good luck.

 

[bood]

double

theres a picture of my 'spare' 0.2+ build ss coils around
page 8 or 9


edit here it is

these are all ss 316l 'contact' coils I made, the upper 4 are 0.4/0.5ohm circa each
Coil wrapping | Steam Engine | free vaping calculators

 

[bood]

0.2 build is fast but didnt opt for it for I prefer a cooler vape.. taste is better with the current larger 0.45 build..vapor wouldnt say its bad ..( could say its a 'cloud monster' probably....but not my style of vaping so..)

my tastes are lemon lime rum whiskey & tobacco..all of them better if cooler or not warm, as they recall me more the original source..apart from the tobacco' mixes..which I prefer on the warm side..but that is only one of the list

 

[bood]

btw the atomizer run cool the mech too and is never warm , the battery when i check : never hot until now never been hot