In the first video I posted on page one there is no temperature data when replay is activated, even though temperature logging is enabled. Are those different firmware versions or did you do anything else special?
DNA250C Replay - what's the big deal?
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You can run REPLAY in Temp Mode or in Wattage mode, but as of now you must have some kind TC coil material (it doesnt care which).
I am saying that it makes a noticeably repeatability in the puff from hit to hit. The FLAVOR claim is Evolv's, I get vape tongue really quick so I dont pick up on the whole flavor thing myself.
Thanks, that's the missing piece of information, don't think reviewers picked up on that. Certainly doesn't lessen the confusion around TC vs Replay in any way
Sort of. I ran a few hits in TC mode to see what wattage I was running at when set to 450, then I switched to wattage mode and played with that target wattage until I got a hit I liked.
After being frustrated beyond belief with a DNA out of the box maybe they shouldve focused on just make TC easier to use.
Had no problem setting up TC on the Yihi or any other mod. The DNA? Hours trying to figure out and researching why the TC was horrible then downloading different SS profiles then importing them into Escribe then onto the device. Seriously? If this had been my 1st experience with TC I doubt I would’ve had another. Fortunately I had some experience AND I had this forum to help me.
Had no problem setting up TC on the Yihi or any other mod. The DNA? Hours trying to figure out and researching why the TC was horrible then downloading different SS profiles then importing them into Escribe then onto the device. Seriously? If this had been my 1st experience with TC I doubt I would’ve had another. Fortunately I had some experience AND I had this forum to help me.
That was by running REPLAY in temp mode, all of the data then becomes visible in Device Manager. You wont see it in DM if you are in watts mode.
That kind of frustration is part of the target for the REPLAY feature.
@untar... The chart quoted above indicates that using the temperature coefficient of resistance for these coil materials is at least part of the replay model. The chart says that a replay viable coil must include at least one of the materials we use in TC.. There is no reason for that except to use TCR as part of their model.
Although, technically these coil materials aren't temp sensing. Their resistance is temperature sensitive. That sensitivity is a known quantity and can be used in a model that calculates temperature based on measured resistance.
TC is just a model of a real world phenomenon. The model exists as a set of instructions on a processor. If resistance is x and temp is y, then based on a resistance change of x+1 temp must be y+1.
Replay is also just a model on a chip, albeit a more complex one. Nevertheless, if it requires a temp sensitive material, it must be at least partly based on the TC model.
I ran in TC mode all the time, and when I got the first 250C beta I didnt see the value of REPLAY for a TC user, it seemed redundant to me. But then upon playing with it I now run in replay all of the time.Thanks, that's the missing piece of information, don't think reviewers picked up on that. Certainly doesn't lessen the confusion around TC vs Replay in any way
The biggest value I have found is when running a build where the resistance is changing on me. Like braided wire builds, Claptons or whatever. In straight TC mode I found the resistance of these coils changed on me over time. REPLAY takes all of that out of it, I set the hit I like "while I am in Temp Mode" and it just keeps it there, even as those funky claptons change.
The other thing I tested during the beta was that you could take any TC coil, regardless of whether it was SS, NI, TI whatever, stick it in there in wattage mode, adjust the wattage to taste, and it would keep it there. No, you have no clue what the temps are in this case, if you care you need to do the work to calibrate your mod and then look at it while in temp mode.
I'm mentioning this exact chart even before it was posted, nowhere do I state wire resistance data would be ignored, that's not at all what I'm saying.
What I'm actually saying is that it's on one hand more than plain TC (because it takes more data into consideration, so much that you can actually run some Kanthal coils in replay-pk) and on the other hand less (because you can't set temperature, which mikepetro now corrected by telling us there's in fact 2 replay modes).
If you look at Annas first post on page #3 that's pretty much why I think we should just call it replay.
Not exactly. REPLAY doent care about any specific TCR. It is looking for at least a X% change in resistance as the coil heats up, as long as it see that minimum change it assumes it is a TC coil and it will work.
For example, there is a setting in Escribe as follows:
A "viable" coil has a minimum resistance change of X%, a setting of "Dubious" coil lowers the minimum change requirement a bit.
(Nonsense deleted, dont know where my head was at)
Remember, it is not trying to hit a "temp" in replay, it is more/less duplicating the live resistance curve of the seed hit.
Remember, it is not trying to hit a "temp" in replay, it is more/less duplicating the live resistance curve of the seed hit.
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@mikepetro did you give replay-pk a shot yet with pure Kanthal wire?
If not, the 3rd video here shows how to set it up.
If not, the 3rd video here shows how to set it up.
No I did not, I am happy with my TI wire. Even in REPLAY, the greater the TCR curve, the easier (more accurate) it is to control. While it might work with PK, I am confident it works "better" with TC wires. It still needs to see the "change" in resistance to work, and PK just doesnt change much.
Besides, I do care about the temperature personally, so I want to be able to see what temps I am hitting.
For me, REPLAY in temp mode is my sweet spot.
For sure, as TC is already my sweet spot in "classic" vaping it's a good option I didn't know about yet.
Was just curious about the PK, can't get my hands on replay yet due to only having 75c so tried experiment by proxy
Ahh...
So, with the viable coil setting, the 95% confidence interval would be very tight, meaning that there's a very high probability that the replay model will duplicate the real world "favorite hit" the user wants repeated.
Whereas with the dubious coil setting the model will still work, but there would be a looser range of potential outcomes, such that the 95% confidence interval could include anything from a tepid vape to a scorched wick.
AND, the more the coil deviates into the dubious realm, the greater the band described by the 95% confidence interval.
This means that the replay model could use a highly dubious coil (say a Kanthal core, Nichrome wrap Clapton) and hit the user's expectation. BUT, the probability that the model misses badly is very high. The more dubious the material, the higher the probability of a miss; the more viable the material, the higher the probability of a hit.
There's a third option hidden behind developer mode
with which pure Kanthal is said to be possible, sometimes, if stars aligned properly (in the 2nd vid on page #1 the guy vapes a pure Kanthal alien coil in that mode)
with which pure Kanthal is said to be possible, sometimes, if stars aligned properly (in the 2nd vid on page #1 the guy vapes a pure Kanthal alien coil in that mode)
Makes sense, since Kanthal in wattage mode basically is Replay. Same thing every time. Which leads me back to my point earlier.
The way I see it, Replay for Temp Control vapers is what Variable Wattage was for Variable Voltage vapers.
Yep, thats a good summary.
One thing that does blow its mind is the older "non-resistance" (no such thing) legs they used to use. I think it was the Greek Modder Imeo that started it with the Ithika. Where they spot welded a "non-resistance wire" nickel leg to a kanthal coil to keep from getting a hot leg. If the nickel legs are long enough it could satisfy the "dubious" setting but REPLAY definitely wont work.
Thanks!
I believe then that replay is still very closely related to the model we've been calling temperature control* and that's illustrated by the fact that all of the most viable materials are those used in the TC model. This means that users who don't use/didn't like/won't learn TC are still going to have to at least consider the use of Nickel, Stainless, Titanium or some other material with a usable temperature coefficient of resistance.
Kanthal and other non-temperature sensitive materials may work, but the users of those will still have something of a learning curve. Certainly not as steep as TC, but not set and forget either.
* As soon as I understood what a "temperature control" mod was really doing, I hated the name because it's misleading. The device isn't controlling temperature at all. It's managing resistance and hoping the user gave it the correct inputs to calculate temperature.
I also believe that seasoned TC users won't get as much benefit from replay as the Starbucks Customer crowd. And they'll still have to learn how first.
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