Advantage of higher or lower resistance in TC

[Mrez]

I've just started messing around with TC on my Snowwolf and have to admit, I've been pretty underwhelmed. Ive got 28 gauge nickel wire, did a dual coil to about .08 ohms and in a lemo 2 did a single coil to about .15. In both cases the vape seemed cool and weak even at 450-500. The lemo may not be the best tester as I always seem to have wicking issues with it, but its the only single coil set up I have. So what gives? Should I shoot higher or lower in my build, what effects does each have on the wire for a given heat setting?

 

[Scotticus93]

I've just started messing around with TC on my Snowwolf and have to admit, I've been pretty underwhelmed. Ive got 28 gauge nickel wire, did a dual coil to about .08 ohms and in a lemo 2 did a single coil to about .15. In both cases the vape seemed cool and weak even at 450-500. The lemo may not be the best tester as I always seem to have wicking issues with it, but its the only single coil set up I have. So what gives? Should I shoot higher or lower in my build, what effects does each have on the wire for a given heat setting?

I heard the lemo 1 doesn't even work with tc. Supposedly lemo 2 does but I'm sure it wasn't designed for it so it might still not perform right. So try a different topper I would say.

 

[Mrez]

I recently tried a plume clone, did something like 10 or 11 spaced wrap dual coils and ohmed out to .07...even cranked up in the 500 range the vape felt weak and flavorless. Also noticed that the wick was darkened up. This was on a 28 gauge dual coil.

 

[WiSK]

If you are coming from subohm builds using kanthal, my experience is that nickel TC will disappoint.

Temp control with Ni200 is nice in theory, but it requires thin gauge spaced coils that are heating unevenly while the current TC tech measures average resistance over the whole wire, legs included. So the middle of the coil is too hot, burning your wick, while the outer part of the coil may not even be hot enough to boil the PG, where the flavour is.

I decided to try titanium since last week. With it, I can do 24/26 AWG contact coils, making similar builds as with Kanthal. I seem to be getting a lot better flavour than with nickel while maintaining the advantage of no dry hits.

 

[sofarsogood]

I decided to try titanium since last week. With it, I can do 24/26 AWG contact coils

May I ask, how do you get the contact part working? I'm working with Ti now and would probably like it better if I was making contact instead of spaced coils.

 

[WiSK]

May I ask, how do you get the contact part working? I'm working with Ti now and would probably like it better if I was making contact instead of spaced coils.

Hi. I do it more or less like with Kanthal, but don't make them glow, just a few watts to warm the coils enough to soften them.

I followed this guide: http://blog.craftvapery.com/joshs-definitive-guide-to-temperature-control-with-titanium-wire/

 

[Mrez]

If you are coming from subohm builds using kanthal, my experience is that nickel TC will disappoint.

Temp control with Ni200 is nice in theory, but it requires thin gauge spaced coils that are heating unevenly while the current TC tech measures average resistance over the whole wire, legs included. So the middle of the coil is too hot, burning your wick, while the outer part of the coil may not even be hot enough to boil the PG, where the flavour is.

I decided to try titanium since last week. With it, I can do 24/26 AWG contact coils, making similar builds as with Kanthal. I seem to be getting a lot better flavour than with nickel while maintaining the advantage of no dry hits.

Yeah, I'm coming from subohm with kanthal and nichrome and the handful of temp builds I've done have just felt weak an ineffective. I would consider using titanium, but supposed its a bit wonky on the snowwolf. I used 28 gauge ni200 and debating if I should pick up another spool of something thinner or thicker. Watched a video of riptrippers the other night where he was reviewing an Atty I was interested in, and was using 26 ni200 duals and kicking out solid clouds..I would think you would need some fairly large coils for a dual 26 ni200 just to get to .05 ohms.

 

[GeorgeS]

I have 2 Lemo2's (and two 'clones') all setup for TC.

When it comes to "TC" up to a point, the more resistance the better. Getting a decent amount of resistance out of Ni200 requires lots of spaced windings (the Lemo2 deck is fairly large) and as small of a diameter of wire you can stand working with.

As others mentioned, Ti1 is easier to work with as it has a higher resistance AND with care you can do contact coils with it (saving space).

With TC your mod is going to monitor the coil resistance. With a given change in coil temperature (70F to 400F) the resistance of the coil will change XX%. (I don't recall the exact figures so I'll use an example)

If the 70F to 400F equates to a 100% change in resistance:

• a user with a 0.15ohm coil will have a 0.30ohm coil at 400F
• a user with a 1.50ohm coil will have a 3.00ohm coil at 400F

If your building at or near the minimum resistance your mod can handle, any slight resistance difference in your setup will have a much larger impact with the output and quality of your vape.

A higher resistance TC coil can offer greater "granularity" and more accurate vape. If you have room for the extra windings the larger surface area spreads the heat out over a wider area of the wick.