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yoseff

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Reply with quote  #1 
I saw an answer in other topic that i tried and it works!
It deserves to be seen by more people, so i took the liberty to create a new topic with it. It will be in quote, so the person who shared it, get full credit for it:

Quote:
Originally Posted by gorman
You can actually "cheat". You load the curve for Kanthal from Steam Engine. You'll see it's perfectly flat, with all the data points sitting at 1.0 coefficient.
You leave most of them alone but start raising them by 0.1 after 392F°, 0.1 for every following point.
You then select the new material for the VW profile, you instead opt for temperature control, set up preheat to your liking and vape. The circuit will respect the preheat values (I set the punch at 11, so it just erogates the preheat power for the preheat time duration), then, measuring the resistance and seeing it doesn't get higher, it will simply keep on outputting the max power you have set up.

And that's preheat for non temperature sensing coils in variwatt. [smile]


My friends: This actually is a solution, at least until implemented in firmware!
To make things easier, i share here my already modded kanthal csv file.
(Edit - Also added the ecigprofile i am using on my DNA. I think you can use it and modify to the preheat watts you want)

Thanks gorman [thumb]

 
Attached Files
csv Kanthal_A1_preheat.csv (210 Bytes, 2124 views)
ecigpr kanthal_Preheat.ecigprofile (1.08 KB, 1858 views)


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dwcraig1

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Reply with quote  #2 
I was quite doubtful, I tried this with a few atties till on the 3rd it worked. Note cold ohm vs live ohms. Firing at 50 watts, 75 watts preheat. It works.
[13442508_1231106296913592_8307304698388182483_o] 

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randall

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Reply with quote  #3 
I can attest that this works too! Good work!
dwcraig1

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Reply with quote  #4 
Credit and kudos to gorman 
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retird

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Reply with quote  #5 
Anybody done this with a Clapton Kanthal coil?

dwcraig1..... can you add Temperature to the graph so we can see what the temp is doing relative to the Temperature Set of 550F?

Gonna try this with Clapton set @ 425F and 27 watts to see how it deals with lower temp and wattage....



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dwcraig1

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Reply with quote  #6 
OK give me a minute, I'd say that the temp is way out of whack though.
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dwcraig1

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Reply with quote  #7 
This is using a Vt133, single core 26 gauge Kanthal wrapped with 34 gauge Kanthal (dual coils) in Aromimizer v1.
[13708413_1251475064876715_7632151450233204876_o]
F
iring at 70 watts, 110 preheat.

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I am not connected with and do not represent Evolv Inc. All opinions are my own. They are just opinions and may not be correct.
yoseff

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Reply with quote  #8 
Quote:
Originally Posted by dwcraig1
Credit and kudos to gorman 

Sure I just took his answer (AND BRILLIANT SOLUTION) and turned it into a topic, so it can get the deserved attention [biggrin]

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dwcraig1

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Reply with quote  #9 
Gee I thought I did this on my 75, I couldn't get it to work earlier today on my 75. I see I posted a live view of it a few posts back. Hmm
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yoseff

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Reply with quote  #10 
Quote:
Originally Posted by retird
Anybody done this with a Clapton Kanthal coil?

dwcraig1..... can you add Temperature to the graph so we can see what the temp is doing relative to the Temperature Set of 550F?

Gonna try this with Clapton set @ 425F and 27 watts to see how it deals with lower temp and wattage....




Temp is surely not right
I imagine that what this exactly does to DNA "brain" is:
"Hum, a TC wire. This guy wants preheat of 110w. Let's Give him. WAAAIT! There's some error! The csv must be wrong to this wire - pass to watt mode. Hum, a TC wire. This guy wants preheat of 110w. Let's Give him. WAAAIT! There's some error! The csv must be wrong to this wire - pass to watt mode. Hum, a TC wire. This guy wants preheat of 110w. Let's Give him. WAAAIT! There's some error! The csv must be wrong to this wire - pass to watt mode."

And so on...

Sometime my DNA gets clever and can remind what happened before, so he will give up of preheat. "You are so dumb! The csv is wrong. Let me pass to watt mode straight."

In this case i will take out the tank, fire, and put it again. "New coil?" - Yes (if asked - some times doesn't). And i can fool him for some more time [smile]

Please Evolv - do not make us fool our beloved DNA's. Put preheat available to watt mode on next firmware

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yoseff

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Reply with quote  #11 
Quote:
Originally Posted by dwcraig1
Gee I thought I did this on my 75, I couldn't get it to work earlier today on my 75. I see I posted a live view of it a few posts back. Hmm

Sometimes it doesn't work on the 75's. Seems that they are getting smarter [biggrin]

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dwcraig1

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Reply with quote  #12 
LOL
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randall

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Reply with quote  #13 
I'm running the a Clapton build but no TC and there's a noticeable difference...
retird

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Reply with quote  #14 
dwcraig1... thx for the graph....  surely the preheat is effecting the coil temp even tho the graph is not showing a temp rise during preheat.... and ohm's reading in the graph is showing cold ohms?  Wonder if having the temp set to 450F is effecting the vape as it is within the "flat part" of the "curve" and the 0.1 rise starts at 482F in the "curve"....

Gonna have to play with it a bit.....  THX again dwcraig1....

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yoseff

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Reply with quote  #15 
Quote:
Originally Posted by randall
I'm running the a Clapton build but no TC and there's a noticeable difference...

Randall, this "cheat" is very good for high mass coils, as Claptons. Try it and if it works, you will feel a huge difference: High watts to fast ramp, and desired watts to maintain the flavour 

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