How Much Influence Does the Type of Metal in a Mod Affect Performance?

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Vaya

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Hi, all.

i recently purchased a copper Nemesis and, until this point, MCV's Panzer has been the most effortlessly hard-hitting mech mod I've personally come across.

the Panzer is stainless steel/brass, which have relatively high resistivities and relatively low conductivities.

according to the graphs I've been consulting, copper has a real low resistivity and impressively high conductivity.

Now, in my head, the properties of copper seem to explain well enough the impressive performance of my Nemi. But then, the contact pins in the mod are silver-plated brass (I'm aware that silver plating doesn't make much of a difference). It would seem to me that the metallurgic composition of the pins - rather than the tube body - represent the fulcrum upon which the conductive properties can be attributed. But i can't get it out of my mind that the copper body plays some role. I don't doubt the dual nano dragon coil + sub-ohm resistance of my build contributes as well, but there's just... Something different. That build doesn't kick as strongly with the Panzer or any other mod except the copper Nemi.

Can any one elucidate this for me? I'd be most appreciative!

PS, if copper really is such an effective conductor, why aren't more people using copper contacts? I saw a set of copper contact pins for the Nemi for sale on ebay, am considering going for them (hinging on what I learn from this thread, that is, as it'd be $10/pin).

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Bunnykiller

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copper does have one of the higher conductivity ratings, but it is also a soft metal. Soft metals dont provide a good longevity when it comes to the application of machine threads.... IOW... the threads will deform and the atty will become loose when attached to the mod.
kind of a catch22, good conductivity due to copper, but bad conductivity due to loose threads...
 

Vaya

Senior Member
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Great looking mod, I'm waiting for the copper clone to come back in stock at FT and then I'll put my order in. Are you using magnets for the switch or just running stock?

I've saw in a youtube review that someone was saying the copper hit harder than their SS neme.

Magnets, for sure; however I only ordered two, and it definitely could stand a third which I'll be ordering today.
I'd really recommend getting a 1:1 HCigar Nemi as any upgrades will be compatible... And focalecig.com has it listed for $24 (not sure if that's for the HCigar / Atmomixani model though).
Regarding your comment about your friend's SS Nemi, I put my Patriot and Atomic on my friend's brass Nemi and there just wasn't any comparison. I think copper really is the way to go! :) PS I got mine on ebay for $33 with free shipping... I don't deal with FT any more, I got this thing for a comparable price, the 1:1 clone, arrived in 3 days :)

Bunnykiller said:
copper does have one of the higher conductivity ratings, but it is also a soft metal. Soft metals dont provide a good longevity when it comes to the application of machine threads.... IOW... the threads will deform and the atty will become loose when attached to the mod.
kind of a catch22, good conductivity due to copper, but bad conductivity due to loose threads...

This is an excellent remark, and one I'd not considered up until now.

If handled gingerly (as any great mod ought to be), though, I think it's reasonable to assume the threading won't get stripped... At least, I'm hoping so. What do you think?

dice57 said:
Everything plays it's part, but I believe the contact pin's and switch pins bares the largest impact. All I know is that my copper black stingray out preforms all my other mechs including the Nemesis, but don't have that in copper.

What other mech mods do you have? The Stingray is *gorgeous* and will definitely be the next mod I purchase. Mind posting a pic of your setup? I'd love to take a look :)

Based on your comment about the pins, I think I'm going to go ahead and try out the set of copper pins for this thing... I'll report back when I receive them
 

Vaya

Senior Member
ECF Veteran
Hey,so I looked do around and found this video where Suck My Mod team compares voltage drop rates amongst the copper HCigar Nemi, the SS HCigar Nemi and the FastTech SS/Brass clone and they repeatedly confirm - both with a volt meter and from subjective experience - that the Nemi hits harder because it has less voltage drop,than the SS by .2 V.

Here's a link:
Copper Nemesis Clone by Hcigar Review - Plus a badass Spire Mod giveaway, and a Surprise for V! - YouTube

He also mentions the threading doesn't feel as 'smooth' than with the SS, but I'm going to point him in the direction of this thread regarding copper's properties and why that stands to reason. Hope you enjoy the video,

~ Vaya
 

rurwin

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Jan 6, 2014
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I don't see how it can be due to the bulk material of the tube:
Resistivity.jpg
Stainless steel does have a higher voltage drop, but by a tenth of the amount quoted above, and it only reduces the power by around 1%.

It is more likely due to better attention to detail regarding the various connections between the parts.
 
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Ok heres the solution stay away from noalox its just for thread protection use" NO-OX A SPECIAL " it is electrically conductive grease . use it where the switch slides through the plunger and on all threading top cap battery contact and switch contact not too much as it does conduct electricity also on the pin threading on the top and bottom cap and also protects threads, but you need to clean all threads before use with 91% alcohol or the commonly used vodka or everclear. use a tooth brush to clean threads and clean the tube ends before application. APPLY SPARINGLY it could cause a short if too much is applied and branched an area like the side of the post of the atomizer to the center post or the battery contact on the bottom switch just a thin film is necessary
 
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