Started using TC mode and not getting much flavour

[SimonL]

Yes, use your nail to hold the coil in place and pull the wick through, twist the wick if need be.

Does this look better? It's still a very muted flavour though

 

[ZenAnarchi]

Yes, use your nail to hold the coil in place and pull the wick through, twist the wick if need be.

Another little tip when making a spaced round wire is imho, after you’ve spaced it with your finger nail, take it off, flip it, and place it back on the Coilmaster. Then push the end back down the rod. I find it lets me get tighter spacing. And always dry fire, at least to remove the oils from the coil, and make sure it’s firing from the middle.

When using round wire for tc, I also pay close attention to the results on Steam Engine. It not only gives you a reliable estimate of the ohms your coil will have, but also gives heating capacity (how long it takes the coil to heat up and cool down), and heat flux (which gives a gives a good indication of the desired voltage/wattage). @SimonL , if you haven’t used it, here’s the link:

https://www.steam-engine.org/coil

 

[SimonL]

Another little tip when making a spaced round wire is imho, after you’ve spaced it with your finger nail, take it off, flip it, and place it back on the Coilmaster. Then push the end back down the rod. I find it lets me get tighter spacing. And always dry fire, at least to remove the oils from the coil, and make sure it’s firing from the middle.

When using round wire for tc, I also pay close attention to the results on Steam Engine. It not only gives you a reliable estimate of the ohms your coil will have, but also gives heating capacity (how long it takes the coil to heat up and cool down), and heat flux (which gives a gives a good indication of the desired voltage/wattage). @SimonL , if you haven’t used it, here’s the link:

https://www.steam-engine.org/coil

Thank you for the great advice. I do use Steam Engine plus a vape coil app and they tend to pretty much agree on the coil resistance.

How do you interpret the heat flux figure to determine the voltage and wattage for the coil?

I may have spoken too soo as the flavour is getting better so perhaps the coil and cotton needed to settle for the first few draws. It is definitely better than my last attempt although at 0.65 Ohms I'm using 55W and 275C which seems to be higher than I've seen others say they use. I think I read somewhere that the coil resistance isn't so important in TC mode

 

[ZenAnarchi]

Thank you for the great advice. I do use Steam Engine plus a vape coil app and they tend to pretty much agree on the coil resistance.

How do you interpret the heat flux figure to determine the voltage and wattage for the coil?

I may have spoken too soo as the flavour is getting better so perhaps the coil and cotton needed to settle for the first few draws. It is definitely better than my last attempt although at 0.65 Ohms I'm using 55W and 275C which seems to be higher than I've seen others say they use. I think I read somewhere that the coil resistance isn't so important in TC mode

The heat flux is a great tool for me; I like a cooler vape and by adjusting the voltage you can see the change in color on the left. If you look farther down the webpage, there’s a description of how it works.

It always takes about a half ml of vaping before my cotton settles down in tc. Depends on which brand you use, though. Not quite sure what you meant, but as far as I know, resistance is crucial for tc to function. The mod doesn’t truly measure the temperature, it measures the actual change in resistance as the coil heats up. It’s why kanthal doesn’t work, there’s little consistent change in resistance as it heats. You do have to make sure that there is enough wattage available to get it to the temperature, though. @John R van probably explain it better… You must have a very warm vape indeed at that temperature!

 

[Deleted member 54254]

The term is resistive sensitivity, you need enough coil for it to sense a resistance change. So a couple of extra loops is better but no need to go nuts, I vape mostly MTL so the temperatures I do is totally different, but for example NiFe30 can be down to 0.19 ohms or so, whereas SS is up around 0.9. In each case you're looking at 8-9 wraps. Resistance number itself is kinda irrelevant. As is Wattage, all it does is punt you up to the temp quicker or slower.

 

[Deleted member 54254]

Here's the point, mod is set for 390F and 20W, but it doesn't hit 20W to get up to 390F.

 

[vapervince]

I`m not familiar with the wire you`re using but it looks very substantial, if you look at @John R picture his simple round wire coil will heat up to working temp much quicker and it will also cool quicker which can show savings on juice and battery life, you have to consider the mass of the coil.

 

[SimonL]

The term is resistive sensitivity, you need enough coil for it to sense a resistance change. So a couple of extra loops is better but no need to go nuts, I vape mostly MTL so the temperatures I do is totally different, but for example NiFe30 can be down to 0.19 ohms or so, whereas SS is up around 0.9. In each case you're looking at 8-9 wraps. Resistance number itself is kinda irrelevant. As is Wattage, all it does is punt you up to the temp quicker or slower.

Thanks both

I do prefer a warm vape. I'm using the Dicodes Resistherm NiFe30 wire. It's actually very thin (0.28mm) and a pain to get into the deck as it flexes a lot.

When I said resistance isn't so important in TC mode, I was referring to the thing that you mentioned John, in that it's the change in resistance as the wire heats up that keeps the temperature constant.

My 9 wraps with that wire comes out at 0.64 Ohm. The flavour is a little better but still not near what I get with a 0.35 Ohm fused clapton at 50W in power mode.

I'll keep trying and maybe get some SS wire to try.

 

[Deleted member 54254]

Have you dialled the TCR of resistherm into the mod? i.e. 320

 

[vapervince]

I am of the opinion that flavour increases as the heated surface area of the coil increases, when you compare at the surface area of a round wire coil to all the little nooks and crannies of say a dual clapton coil there is no comparison. When I changed from single wire micro coils to complex coils it was as if someone had waved a magic wand over my juices.