NICKEL WIRE

[Mad Scientist]

A couple things to keep in mind - Nickel wire is extremely low resistance. It is also much softer than Kanthal or Nichrome. Be very careful when tightening the screws as they will cut through the wire like soft warm butter. The first 26ga coil coil I tried came out even too low for the ipv4 to fire. I ended up wrapping as big a coil as I could fit on the deck of the Lemo I am using to get it high enough to fire. 28, 30 or 32ga will make this easier. And of course, you probably know this, but do not try a contact coil where the coils are touching...there needs to be space between each wrap. I wrap the coil on the mandrel and separate after mounted...I am working on my technique for this.

But when you get it done, enjoy your dry hit free vaping experience!

Hey Taowulf, try heating a contact coil to a red glow with a torch before installing it. An insulating layer of nickel oxide forms very quickly, and contact coils are very possible and really no trouble. The act of installing it moves the very small non-oxidized areas around enough that hot spots are (almost always) not any issue. Same principle as the old method of oxidizing a mesh wick before coiling it. Give it a try and see what you think.

 

[sdmf74]

Sx Mini M Class

I just set my TP to between 270-290f & works perfectly

Oh I didnt realize the M class could fire TI coils.

@Mad Scientist, I assume you are referring to annealed NI200? You never want to put a lighter/torch to tempered Nickel.

 

[Quantum Mech]

Oh I didnt realize the M class could fire TI coils.

yeah works well, juice tastes so clean now

did not realise kanthal was giving off a taste of the metal till I tried Ti & now its just juice I taste

 

[Quantum Mech]

Hey Taowulf, try heating a contact coil to a red glow with a torch before installing it. An insulating layer of nickel oxide forms very quickly, and contact coils are very possible and really no trouble. The act of installing it moves the very small non-oxidized areas around enough that hot spots are (almost always) not any issue. Same principle as the old method of oxidizing a mesh wick before coiling it. Give it a try and see what you think.

Dr Farsalinos has recently said we should not be heating wire till it glows
It breaks the molecular bonds & would increase the chance of metal entering the vapour stream
He also said at the time that Ti is likely the safest form of wire to use but again don't heat it above TP vaping

He was quite clear on the fact that reviewers need to stop telling everyone to glow there coils

Titanium wire, vaping and safety

 

[GrandSam]

Any NI200 should work. Nichrome wouldn't work all that well, as it is only part nickel.

 

[Mad Scientist]

Oh, here we go again. To save about a hundred posts back and forth (plenty of threads on the issue already), I disagree with Dr. F on this point and I'm comfortable that heating nickel to under about 1,000 F for a short period does not create any issues, i.e. none, zero, and very likely heating to near vaporization temperature would not either. I guess everyone has to make their own choices on this one.

 

[Mad Scientist]

Oh I didnt realize the M class could fire TI coils.

@Mad Scientist, I assume you are referring to annealed NI200? You never want to put a lighter/torch to tempered Nickel.

Correct, heating will anneal tempered nickel and kind of eliminates the benefits of the tempering. I am good with annealed -- just have to be a little more delicate with it when building.

 

[Quantum Mech]

It will depend what horse your backing

Personally Farsalinos for me but each their own

 

[Mad Scientist]

It will depend what horse your backing

Personally Farsalinos for me but each their own

Roger that. He wants to study the issue. I support a study. I don't support his definitive statements that it's bad (and the science of it does not support his statements). Hopefully I won't die between now and the time someone pays him to study it lol.

 

[Quantum Mech]

Roger that. He wants to study the issue. I support a study. I don't support his definitive statements that it's bad (and the science of it does not support his statements). Hopefully I won't die between now and the time someone pays him to study it lol.

Yeah true, there is no supporting evidence either way yet

Will be good to get a definitive answer for sure

And hat off to you in advance just in case I backed the wrong one

 

[Taowulf]

I support what Dr F has done, but I am pretty skeptical of his grasp of metallurgy.

I am done with torching wires. I've found that gently strumming the coil while heating it (way below glowing) is sufficient to get rid of hot legs. That is for Nickel coils. the technique works even better on contact Kanthal coils.

Contact nickel coils make no sense to me, we do not want rapid heating of the coil.