SXmini M Class (TEMP CONTROL)

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TheotherSteveS

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Whose this Brandon you speak of is he an ex Yihi engineer? What are his credentials to know what would be optimal? I'm finding .07Ω - .14Ω to work great for me. A .4Ω coil using 28g ni200 would be about 60 wraps, not very practical and would probably take a year to heat up.

errr...no need to be a edited by ECF Moderator.My point was merely that a 0.01 fluctuation in a target value of 0.07 represents a %14 error. In a target value of 0.4 its 2.5%. Therefore yihi are asking a good deal more of the hardware attached to their mod (ie atty + coil + user) than would be necessary if the sweet spot was say 0.2 ohms. Is this a big del? Probably not but i was just raising it as a point of discussion, not to be ridiculed.
I am perfectly aware of the resistance/unit length limitations of Ni200 wire....Thanks for your invaluable input...Im bored of this thread anyway...too much testosterone...


ps. 0.4ohms is easily reachable with Ti wire btw...whether using it is a good idea or not isnt the point (before yiou flame me on that). Its just a fact...

pps. Just beacause the yih is recording temperature at a precision of a milliohm (thats 0.001 ohms ;) )it doenst mean it is accurate - i can explain the difference if yiou wish).

The brits invented sarcasm mate!
 
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jazzvaper

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I can confirm inconsistent temperature control behavior between .21 and .38 oHms. I also saw it with a .16 Vapor Shark Ni200 Kanger Subtank head but not so pronounced. It's hard to know exactly why this is as there is no useful screen feedback.

I tried temps between 350°—450 at 10° increments with my Marquis, Magma, Tilemahos and Subtank Mini. The screen showed the coils reaching the temperature limit immediately and basically staying there. However, the temperature of of the vape varied noticeably. Hopefully, lower oHm builds will produce better temperature consistency.

Don't have any of the sub tanks or pre-built coils. Do have a Marquis (stunning), and a Magma (ho-hum) but no Tilemahos ( despite your recommendation. ;))

I took essentially the same journey you did, coming to a very similar conclusion. In the early TC days ohm readings near 0.10 to 0.14 worked okay...for those times. Recently I have been aiming for 0.17 to 0.22, getting much more consistent results.

The SX M-Class is a different beast, though I cannot comprehend a recommended resistance "0.065". Huh?


Sent from my iPad using Tapatalk
 
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Vlad1

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errr...no need to be a Edited by ECF Moderator....My point was merely that a 0.01 fluctuation in a target value of 0.07 represents a %14 error. In a target value of 0.4 its 2.5%. Therefore yihi are asking a good deal more of the hardware attached to their mod (ie atty + coil + user) than would be necessary if the sweet spot was say 0.2 ohms. Is this a big del? Probably not but i was just raising it as a point of discussion, not to be ridiculed.
I am perfectly aware of the resistance/unit length limitations of Ni200 wire....Thanks for your invaluable input...Im bored of this thread anyway...too much testosterone...


ps. 0.4ohms is easily reachable with Ti wire btw...whether using it is a good idea or not isnt the point (before yiou flame me on that). Its just a fact...

Was only pulling your chain, don't take it as a personal attack. They're different devices DNA limited to 40w where SXmini 120 w so they obviously have different input / output specs to go with that.
 
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HolmanGT

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No I wasn't being jabbing at Brandon, I was jabbing at TheotherSteveS for referencing Brandon as if he was the authority. And I don' t like / dislike him anymore than I like / dislike Lau from Aspire. Their businessmen putting out products.

"What I think we have here is a failure to communicate". (Cool Hand Luke) :D
 

beez0527

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It's all a matter of working within the manufacturer's engineering parameters.. Many are enjoying the M Class, and that's what matters in the end.. Who knows what improvements future firmware revisions / tweaks will bring to the table.. ;)
And that is one of the main reasons why i purchased the M class, they can and I'm sure they will make it better with the users ability to do their own software updates without sending the unit in for a fee.
 

TheotherSteveS

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Was only pulling your chain, don't take it as a personal attack. They're different devices DNA limited to 40w where SXmini 120 w so they obviously have different input / output specs to go with that.

Sorry lad, just a bit grumpy! I kniow what you mean. They are different of course!
 

TheotherSteveS

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The only inconsistency I have seen so far is with the Kanger Ni OCCs, even on two different nanos! THe RBA on the mini is absolutely stellar, rock solid, perfect vape at 0.188 =/- 0.02ish ohms. Lol!

The nano/OCC combo is really screwy on the M-class and on a two different chiNA40s...Magma build at 0.22 ohms on m-class also excellent but I have used it a lot less!
 

Vlad1

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And that is one of the main reasons why i purchased the M class, they can and I'm sure they will make it better with the users ability to do their own software updates without sending the unit in for a fee.

I'm relatively certain we wont get the big upgrade like we received with the original SX350 which I have sitting here with me as well:) . But can you imagine having a chip at 30w and then go all the way up to 60w like they did with that one. It was like getting a free device. Everything was done via software upgrade except for when they went to 60w we had to replace wiring with 16g. They had talked about taking it up to 80w but ended up dropping that. I really doubt we'll see any power upgrades on the SXmini but they could certainly fix any bug's and make minor enhancements pretty easily I would think.
 

2legsshrt

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I just wanted to take time to thank everyone on this thread for such informative and civil discussions. I've been following this thread from page 1, and I have learned a lot about TC and M class while enjoying all ranges of dicussion here, sometimes geeky and other times OCD but all entertaining and informative. Special thanks to technonaut and everyone else for much contribution.

Thank you.

Me too and my M is on schedule to be delivered tomorrow. Going to build one of my Kanger STM today. Undecided to use 29awg tempered 7 wraps or 28awg 8 wraps will wrap backwards so as to place it to not pull on the build.
 

a tez

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You can figure out the math yourself actually ... If I'm not mistaken the 25A figure is from bypass mode which goes to 80 watts, exactly 25A from 3.2v minimum, disregarding efficiency.

Taking into account efficiency, the 60w in non-bypass mode gives a bit over 20A from 3.2v minimum.

I'm talking about Joules, not Power mode.
 

a tez

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Sigh, we just got through discussing this. This is another case in point. Batteries are not rated in joules when it comes to supply rate.

Yes, I know this. But when using these calculators, if I have my mod set to 33J and the max voltage it is putting out at .1ohm is 2.7volts, what would the watts be?
 

350ZMO

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Yea I knew who he was referencing, I was just jabbing at him :) . I've stated in other forums I don't understand why folks even compare these devices when there is so little in common other than making vapor and that's "Temperature control" Comparing a 40w device to a 60w -120w capable device just is like comparing an Ego twist to a mech imo. They have completely different input / output specs and features and from what I'm reading on the forums I'm certainly happy with the camp I chose.

I got that. And I agree. As an actual owner of both I do believe its correct to compare vapor production experience or performance or likes/dislikes or preference or whatever you want to call it. Like comparing Ford Eco Boost to a Dodge Hemi. They both move down the road. And WRT to that, I can say the wife and I prefer the M class over the 40s. I put them on USB charge at night when we go to bed, wake up set the resistance and we vape all day no buzz outside of the nicotine. Clearly the technical approach to temperature is very different and in our case preferable. I can't explain it, am waiting for Friend Phils review but there it is.

I am hesitant to say this because I know it will generate a lot of hoopla but in the interest of just liking what works and wanting to connect with opinions of other owners of both on their experiences, our vapor production experience is almost like the M class seems to do what John said in smokeyjoes' interview that they don't do. Specifically temperature regulation. IE where you expect the output to maintain at a constant level instead of like a on/off or bang-bang. Like a cruise control where it maintains speed within 10% versus on/off surging of speed like within 90%.

Remember this in that interview?:

"The DNA40 is a temperature protected system, not a temperature regulated system. In a temperature regulated system you might say: “Okay, I’m going to keep this playing at 410 degrees,” but you would have literally minimal to no control over how much vapor comes out: if that temperature’s above the boiling point it will simply boil off everything that gets to it immediately, which isn’t really what you want: that’s not very controllable."

Which made and still makes sense. Makes me wonder if the M class really *is regulating temperature or at least trying to. As I think others have said a "smoother" vape experience. That's as good a word I can think of as any. Oh and we prefer and use soft mode.

Maybe Joe will interview YiHi.

Sure wish there was an emoticon of a yellow face pulling the pin on a hand grenade and running away...

Ya'll have fun!

:evil::2cool::vapor:
 

dr g

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Yes, I know this. But when using these calculators, if I have my mod set to 33J and the max voltage it is putting out at .1ohm is 2.7volts, what would the watts be?

you're going to have to be able to figure that out yourself if you want to get anywhere understanding any vaping technology ...
 

MsLoud

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Thanks for the info. So that means the people saying theirs doesn't make the noise are just unable to hear it.
This I think is true. My boss is a hobby musician and this around tons of electronics and sound equipment and needing to fine tune sounds all the time and he can hear it when I fire it and he's got his ear close.
 
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