Joyetech Evic VT 60 Watt

[cigatron]

What does the res lock REALLY do???? When my STmini rba wasn't making stable contact my vapor temp would go up and down as my atty res fluctuated....whether it was locked or not!
Now with a solid connection my temp is stable....whether locked or not!!!! So what the heck does res lock do besides give me a false sense if security??? Maybe I'm just thick.

 

[mc8]

What does the res lock REALLY do???? When my STmini rba wasn't making stable contact my vapor temp would go up and down as my atty res fluctuated....whether it was locked or not!
Now with a solid connection my temp is stable....whether locked or not!!!! So what the heck does res lock do besides give me a false sense if security??? Maybe I'm just thick.

if unlocked, the res should rise when the coil heats up

 

[foggybottom]

So, VT owners, on the same firmware, are having vastly different experiences. This makes it difficult to believe that it's a software issue. That leaves:

1. Poor craftsmanship/QC on Joyetech's part.
2. User error of some kind (bad/loose builds, etc).
3. Atomizers that are, for whatever reason, not conducive to the technology.

Is anyone vaping an atomizer(s) specifically designed and manufactured for TC? If so, how is it working on the VT?

Earlier in the thread I asked if anyone had the wandering resistance problem with the ego one mega and stock coil and one user - can't remember who - did.

 

[foggybottom]

if unlocked, the res should rise when the coil heats up

I just tried that and my resistance reading does not change whether locked or unlocked, even cranking the temp up to 600 and not drawing, thus rapidly hitting protection. I had been taking the locked resistance number on the screen simply as the number used to calculate temperature based on the (not displayed) change in resistance from it. Wrong?

 

[Carnage9270]

Resistance lock isn't what most people think it is. You can't make a .1 ohm coil fire at .2. The reading on your screen of a locked resistance is nothing more than eye candy. The fact that it is changing on your screen is just badly written lock code. Doesn't change anything about your coil or how it's operating. If I throw a picture over my wooden door that made it look metal, would I have a metal door?

 

[cigatron]

Resistance lock isn't what most people think it is. You can't make a .1 ohm coil fire at .2. The reading on your screen of a locked resistance is nothing more than eye candy. The fact that is is changing on your screen is just badly written lock code. Doesn't change anything about your coil or how it's operating. If I throw a picture over my wooden door that made it look metal, would I have a metal door?

Thank you very much. Well said. Maybe I'm not as thought as I thick I was....I am slightly lisdecsic though.........

fwiw, my vt does not show res changes while vaping when unlocked. Imo, the res lock does squat......nada.

 

[Carnage9270]

Thank you very much. Well said. Maybe I'm not as thought as I thick I was....I am slightly lisdecsic though.........

Hehe, yeah. I've always found it funny that the one part of ohm's law they cannot control, because it's a physical property, they put a lock on it to make you feel better about your connections.
If your resistance is varying there are a number of different places it can happen. It can be the fault of the atomizer or the device itself. To read resistance, it has to be measured from the positive connection leaving the chip all the way to the negative connection at the chip. This loop has many factors here. Wire, insulator, solder points, 510 positive pin, all the workings inside an atomizer, back through the negative threaded side of the 510 connection. It's a mess of resistance that needs to be kept at a constant value, and that value can only be controlled by it's physical parts. Not a chip in the world that can change physical properties.

 

[USMCotaku]

Thank you very much. Well said. Maybe I'm not as thought as I thick I was....I am slightly lisdecsic though.........

fwiw, my vt does not show res changes while vaping when unlocked. Imo, the res lock does squat......nada.

But the resistance IS changing it doesn't show it because it's using the starting ohm of when you press the button as the base line for temp calculations....... Take the atty off immediately after firing and put it back on while still hot....... You will then see how much it changed. Locked, you put the atty back on warm, it will show the new res only briefly.... But once you hit fire it will reset back to the locked res. That's really all the lock does.... Tell the mod where the base line SHOULD be.

 

[JeremyR]

Easiest way to see how the resisrance changes is to fire it in wattage mode. The ohms are displayed in real time there.

My locked resistance has never raised yet. It has only lowered, I assume its actually refining.

The coils I'm using should be about .27, add in cheap clt clone and .31 is probably close. And it's been like that all day no change..

So it is working fine, once it settles in and you get the temp adjusted, and don't mess with it, its OK.

There's so many dang variables with this tech..

 

[cigatron]

But the resistance IS changing it doesn't show it because it's using the starting ohm of when you press the button as the base line for temp calculations....... Take the atty off immediately after firing and put it back on while still hot....... You will then see how much it changed. Locked, you put the atty back on warm, it will show the new res only briefly.... But once you hit fire it will reset back to the locked res. That's really all the lock does.... Tell the mod where the base line SHOULD be.

So it does....I stand corrected. So the res lock only comes into play if you remove and reinstall your atty while it's at higher than ambient temp......essentially just keeping me from choosing "same coil". Cool, thanks.

 

[jseah]

Stable connections are definitely critical, but that's not what's causing my issues. I've been building TC toppers for 7 months, so I've got a pretty good handle on it now.

That's not to say there's isn't a bad connection INSIDE my eVic. (But that still doesn't explain why it won't lock the damn resistance)

I started using TC back in the beginning of April when I purchased the SX Mini and the Vaporshark rDNA40. I used a Subtank Mini with TC OCC on the SX Mini and the resistance never fluctuated. I used an Atlantis v2 with nickel BVC on the Vaporshark rDNA40 and the resistance never fluctuated. I never even used atty lock on the rDNA40.

When I got the evic-VT and started seeing the wandering resistance using the Subtank Mini with nickel OCC's, I also started using the Subtank Mini with nickel OCC's on the rDNA40 and also noticed the same wandering resistance on that as well. Load the new coil on there, it picks up at anywhere from 0.14 to 0.16 ohms and it vapes fine then an hour or two later the resistance drops to 0.12. Doesn't matter if the atty lock is on or not.

I've since given up on using the Subtank Mini with nickel OCC's and are now using my Atlantis v2 with nickel BVC's. Been using them for 4 or 5 days now and the coil resistance never wavers. Doesn't matter if I have resistance locked or not.

 

[USMCotaku]

I started using TC back in the beginning of April when I purchased the SX Mini and the Vaporshark rDNA40. I used a Subtank Mini with TC OCC on the SX Mini and the resistance never fluctuated. I used an Atlantis v2 with nickel BVC on the Vaporshark rDNA40 and the resistance never fluctuated. I never even used atty lock on the rDNA40.

When I got the evic-VT and started seeing the wandering resistance using the Subtank Mini with nickel OCC's, I also started using the Subtank Mini with nickel OCC's on the rDNA40 and also noticed the same wandering resistance on that as well. Load the new coil on there, it picks up at anywhere from 0.14 to 0.16 ohms and it vapes fine then an hour or two later the resistance drops to 0.12. Doesn't matter if the atty lock is on or not.

I've since given up on using the Subtank Mini with nickel OCC's and are now using my Atlantis v2 with nickel BVC's. Been using them for 4 or 5 days now and the coil resistance never wavers. Doesn't matter if I have resistance locked or not.

Seems like something changed with the recent batches of ni200 occ's?
I ordered a pack from fasttech to experiment. I'm day two on the first one. Day one it sat at .16 all day solid, till last night, I unlocked the res to swap tanks... When I put it back on it was at .17.... Again solid, no fluctuations, locked or not. I think the change to .17 is valid, the juice I'm running through it has a lot of sweetener

 

[USMCotaku]

Oh....i built my kayfun at .11 (reads the same on the evic and the invader mini) and it's going on 3 weeks without a single fluctuation.
My mod is ver. 1.10 (it's a vendor sample), but even still, any oddities I've experienced seem to be related to the tank that's on it and not the mod.
Sent with one hand, the other is busy vaping.

 

[jseah]

Seems like something changed with the recent batches of ni200 occ's?
I ordered a pack from fasttech to experiment. I'm day two on the first one. Day one it sat at .16 all day solid, till last night, I unlocked the res to swap tanks... When I put it back on it was at .17.... Again solid, no fluctuations, locked or not. I think the change to .17 is valid, the juice I'm running through it has a lot of sweetener

I had purchased my first two 5-packs of nickel OCC's from Vaporshark. The next two 5-packs I purchased from MFS during their 40% off coils sale. I've gone through the first two packs and one coil from the second batch. Out of all those coils, I think every one had the wandering resistance issue. The only ones that didn't wander was the coils that I used when it was in the SX Mini, and I think it is because with the SX Mini you manually set the resistance (by pushing the up and down buttons) and it never changes from that.

 

[cigatron]

The VT REFINES! Holy crap, it's not in the manual but it deff does refine atty res when locked!!!

After understanding better what res lock actually does, thanks USMCotaku, I vaped my res stable (.20 ohms) STmini until it was hot, unlocked the res, remove and reinstalled the hot atty, right toggled to "new coil" to accept the .25 ohm hot coil, locked at .25 ohms, waited 10 minutes for the mod/atty to reach ambient temp and what do you know?....it refined to .20 ohms.....yeeeeees. Now I am seriously impressed with the VT.....not so impressed with my noggin though...lol

 

[Thayamax]

But the resistance IS changing it doesn't show it because it's using the starting ohm of when you press the button as the base line for temp calculations....... Take the atty off immediately after firing and put it back on while still hot....... You will then see how much it changed. Locked, you put the atty back on warm, it will show the new res only briefly.... But once you hit fire it will reset back to the locked res. That's really all the lock does.... Tell the mod where the base line SHOULD be.

I did exactly what you said. I've had no res fluctuations on my CLT v3 since I put it on last week. It has shown a steady .32 locked and unlocked, even after a wick change. After I vaped it I took it off and immediately put it back on. The res showed .43 and when I hit fire it asked new coil/same coil. I hit same coil and it went right back to .32. This was with the res unlocked as it's been for the last 2 days.

 

[cigatron]

I did exactly what you said. I've had no res fluctuations on my CLT v3 since I put it on last week. It has shown a steady .32 locked and unlocked, even after a wick change. After I vaped it I took it off and immediately put it back on. The res showed .43 and when I hit fire it asked new coil/same coil. I hit same coil and it went right back to .32. This was with the res unlocked as it's been for the last 2 days.

Wait, you hit "same coil" I hit "new coil". Hitting "same coil" will always return to the previous ambient res setting. I actually accepted a new higher res knowing that it was too high because the coil was hot. I did it on purpose to see if the mod would change the locked res once it cooled off. It did and I didn't have to touch anything except the power button.

 

[JeremyR]

Yes I'm seeing refinement, And it holds.

That's what my posts yesterday were showing in a long winded fashion.

I'm thinking... of course it refines why else would it be sampling for 4 mins after you put it down. (Tick&beep)

I was purposely cheating it for a minute though at the ~.1 higher res and the ti temps were more accurate.... But after I put it down it refined back to the correct res.

 

[cigatron]

Yes I'm seeing refinement, And it holds.

That's what my posts yesterday were showing in a long winded fashion.

I'm thinking... of course it refines why else would it be sampling for 4 mins after you put it down. (Tick&beep)

I def missed what you were saying in that post J. I get it now. Thanks

 

[JeremyR]

Lol... yeah I was figuring it out as the posts were going out. Which were more like notes of my experience on the first day of tc.