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The right TCR
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#21 (permalink)      12/17/2016 8:32:37 PM US Central   quote/reply + tips
sushi6
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HybridMask wrote:

YES! YES! XD

Also, in reddit someone said that the presetting from the evic vtc mini for SS316 is 316L after firmware 3.0 and above, not 304 (like in version 1.3 and 2.0).



ignore it.

#22 (permalink)      12/17/2016 8:38:17 PM US Central   quote/reply + tips
MitchL
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What diameter coil are you using? With a 26 Gauge single coil, in most attys I would use a 3 mm Id coil with at the most 5 spaced raps for TC!
#23 (permalink)      12/17/2016 8:46:42 PM US Central   quote/reply + tips
MitchL
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Sushi6 good job at looking at the resistance to figure out the coil raps! I was looking at the resistance with confusion!
#24 (permalink)      12/17/2016 8:47:08 PM US Central   quote/reply + tips
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HybridMask
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sushi6 wrote:

he actually has the right heat flux but the coil is a little too big. 3mm with 11 turns.


If I am not mistaken I never said the number o wraps. Shame on me. It have 8 wraps (7 complete wraps and two half wraps at the end).

MitchL wrote:

What diameter coil are you using? With a 26 Gauge single coil, in most attys I would use a 3 mm Id coil with at the most 5 spaced raps for TC!


3MM, 8 wraps, spaced. started at 0.76 ohms but now is 0.83 ohms.


Edited on 12/17/2016 at 8:47 PM. Reason:
#25 (permalink)      12/17/2016 8:47:34 PM US Central   quote/reply + tips
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TruckinVapor
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HybridMask wrote:

TruckinVapor wrote:
Try a TCR of 112 and see if that brings it closer to your set temp.

The cotton is getting more burnt with 112, but no dry hit. I am new to TC, so I don't know what is a "normal" TC setting xD


Yeah... Sounds like you're getting close. At ~415°F new/dry cotton will show a slight yellow discoloration. But, shouldn't char or scortch. You can also tell you have it set correctly when in use if the mod regulates down once your wicking starts to dry out. Then you got the TCR nailed... ;)

I think what gets overlooked and why the TCR needs to be adjusted. Is the fact that stock TCR values are just an averaging over a large temp range. SS has a non-lineir relationship to resistance and temperature. Meaning it doesn't increase in resistance in a uniform mannor in proportion to the temperature of the wire. Fine tuning the TCR will bring the accuracy of the chips ability to read resistance changes within the ranges of temps we vape.

Living is the only thing worth dying for...
#26 (permalink)      12/17/2016 8:54:08 PM US Central   quote/reply + tips
sushi6
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HybridMask wrote:

If I am not mistaken I never said the number o wraps. Shame on me. It have 8 wraps (7 complete wraps and tow half wraps at the end).


http://www.steam-engine.org/coil.asp?mat=ss316l&r=0.76&hfnw=30&awg=26&id=3
See the wattage setting next to heat flux. around 170-180 is good.

You resistance is a little high, check post screws are tight.

resistance of hot coil is higher than cool. I never lock the resistance. I even reattach when the coil is hot. Never had a problem.

#27 (permalink)      12/17/2016 8:54:35 PM US Central   quote/reply + tips
MitchL
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I hope we are not scarring people out of trying TC! When you understand it, it makes thing simpler and not harder!
#28 (permalink)      12/17/2016 8:56:04 PM US Central   quote/reply + tips
MitchL
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You should always lock in the room temperature resistance!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
#29 (permalink)      12/17/2016 9:03:44 PM US Central   quote/reply + tips
sushi6
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MitchL wrote:

You should always lock in the room temperature resistance!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!



Nah, I don't wanna

#30 (permalink)      12/17/2016 9:08:13 PM US Central   quote/reply + tips
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TruckinVapor
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MitchL wrote:

You should always lock in the room temperature resistance!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


Depends on the mod/chip. Evolv always recommended not to lock the cold resistance. Also, I never locked my JoyeTech devices and never have an issue.

Living is the only thing worth dying for...
#31 (permalink)      12/17/2016 9:32:41 PM US Central   quote/reply + tips
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HybridMask
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@TruckinVapor I will try with the resistence unlocked. But Evolv is different than JT. Maybe some chips are mean to work in their own way right?

@MitchL I am not scared at all. Just want to learn more. (:

sushi6 wrote:

http://www.steam-engine.org/coil.asp?mat=ss316l&r=0.76&hfnw=30&awg=26&id=3
See the wattage setting next to heat flux. around 170-180 is good.

You resistance is a little high, check post screws are tight.

resistance of hot coil is higher than cool. I never lock the resistance. I even reattach when the coil is hot. Never had a problem.


I haven't noticed the indicated temperature before. Thks!

I tighted the screws. Resistence changed to 0.70 ohms. Oh... I forgot to mention something. I am using this heatsink. Without the heatsink the resistence is 0.76. So something is wrong?

I alway thought that, "why should I lock the resistence if the resistence will keep changing? So with the resistence locked the device will give a TC that is inaccurate, right?"


Edited on 12/17/2016 at 9:34 PM. Reason: