RustyOldNail
SEARCH for the treasure...
Any further on this sobering thought? May is getting closer, the e-cig madness seems to be growing still the question is will it spoil/kill things for us in their zeal?
Some of us are kinda interested......
Any update would be much appreciated, Matt. TIA
It's confusing for sure. But if you understand how TCR and temperature setting are used you'll see how there are many formulas that give the same answer. TCR, as we use it, is the 'thermal change in resistance with temperature' for the material used. Normally you find this as PPM (Parts per Million, as opposed to percent) in science books. To save display space we divide the real value by ten. So a TCR value we call 200 is really 2000 parts per million, .2 percent. So we anticipate .2% increase in resistance for every degree C rise in temperature (the number would be negative if the resistance went down, as it does in some materials). So, if we ask for a 180C rise (to 200C) the mod will look for 36% increase. But it would also look for this 'hidden value' if we said 300 for TCR and 120 C rise.
In algebra terms TCR is specified in 'percent per degree change', while the temperature is in degrees. So multiplying them cancels the degrees part and the answer is in percent alone.
What I'm saying is TCR and set value go hand in hand. You can increase or decease either and get the same results. You can tweak either and get the same result. Exactly. No real need to have adjustable TCR, or even the 'right' value if you can change the temperature enough to compensate. Or you can tweak the TCR value so you get the results you like with the temperature you think it should be. This is what I did to get the results I expected when I dialed up 390 F.
Regards tp all.
OF
Thanks I’ve read your TCR math explanation before, a subject I was always bad at, but your last paragraph was easy to digest as understanding the relationship between TCR and chosen temperature.
Evolve “Replay” aside, I’ll go back to experimenting and choose my Titanium preset of TCR=366, since as I kept notes of many of the members settings here, many as low as TCR=230, and the high being the standard Nickel TCR=600.
TCR “366”, seems almost in the middle. I’ll leave the watts somewhere around the 35-50 range, and then simply change my temperatures and keep notes for dialing in. I’ll do this for both QQ and CCV2. Does this strategy seem logical?
I’ve been an ECig user since the days of “foam” cartos, collected a lot of mods, make my own coils and ejuice, but never delved very deep into how the math works. Ten years ago, the oil carts were all direct coil type, and in my opinion were just a quick answer, but I hated the few different types I tried for all the reasons seasoned dabbers already know. So I went with a Highly Educated Titanium nail. 10 years or so later, coming back to the portable wax atomizer scene, as I stumbled across these atomizers from Matt, and saw that he understood those issues, and worked on solving them, and I jumped back in. In an email with him, I said he has basically created a portable version of my NewVape DCup, sans the Sapphire dish.
Thanks again, learned a lot from your posts here, you are a smart dude, and know the gear very well.