NR-R-NR Wire Tutorial

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XfooYen

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Melting Temperature: 1500°C (2732°F) Kanthal most certainly can melt it easily kanthal melts whole car frames down with a 12v battery

its great find but i would rather be safest and have others know that it can and is happening
its exactly how you make colloidal silver




the coil is over 1k on a dry burn

Dude, you're information is out of context and completely misinformed. In our use, the Kanthal does not and will not get hot enough to melt silver. Period. We're not dry burning with 15 amps through the stuff. Stop spreading bad information. Silver has been used as non resistance wire since the start. Never a meltdown.
 

chadsmo

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Dude, you're information is out of context and completely misinformed. In our use, the Kanthal does not and will not get hot enough to melt silver. Period. We're not dry burning with 15 amps through the stuff. Stop spreading bad information. Silver has been used as non resistance wire since the start. Never a meltdown.

Exactly. Although I'm using nickel wire now, for the first month or so I was rebuilding my Dripper Pro with silver, and the coil wasn't melting anything.
 

Kevin Brown

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You guys have no electrical knowledge

silver solder same stuff why not use it there

theres a perfect good reason -- it doesn't belong there
it being utilized as whats called a transmission line
works perfectly for that but on the coil its dangerous
use brass or a stainless collar both of those are approved and proven
never silver to make the connection
in a short it will be 1st to melt

oh well
 

Kevin Brown

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Silver wire for the non resistance tails is super common and widely used.

No shiz sherlock
yes its is ok to use as post leg extensions
transferring the voltage to the coil but not ok to tie into the coil
they do not even warm up when configured correctly

when used as the .... end crimp they are now
part of the coil and will heat up
its about safety and it is the weakest link acting as a fuse
a glob of silver in the mouth
or lung would suck

best off hitch-twisting kanthal legs increasing their gauge
in which they will not heat up or become unstable in a short

get over it, its a simple fact of electrons and metals
use correct connectors connections
 

StaircaseWit

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No shiz sherlock
yes its is ok to use as post leg extensions
transferring the voltage to the coil but not ok to tie into the coil
they do not even warm up when configured correctly

when used as the .... end crimp they are now
part of the coil and will heat up

its about safety and it is the weakest link acting as a fuse
a glob of silver in the mouth
or lung would suck

You contradict yourself quite a bit here. Okay as leg extensions (presumably from the coil), but not to tie into the coil? Part of the coil after using crimps, but not when twisted together?

Read up on the resistance of silver vs. Kanthal wire.
 

Kevin Brown

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You contradict yourself quite a bit here. Okay as leg extensions (presumably from the coil), but not to tie into the coil? Part of the coil after using crimps, but not when twisted together?

Read up on the resistance of silver vs. Kanthal wire.
^
Why this place should have to show a working card to post
 

Kevin Brown

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Hopefully the card would explain your point more clearly than you have.

well said from spectator seats in electical guru chat aha
dont get me started on a flux capacitor
it now exists btw

yeah if your in or into the electrical field that which you quoted makes 100% sense

but hilarious
most of them would be my helpers or b workers i am the boss so idk
they may be at a loss so many cheaters in school these days damn pda's
 

unloaded

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popcorn.gif
 

Seiggy

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I've also had issues with NR-R-NR. Silver NR breaking at the joint and bouncing resistance readings. I look at what everone was doing and came up with yet another way... I have not seen it yet in the fourm so I'll call it a double twist. I've used 30 gauge Silver .999 and both 30 & 32 Kanthal it is seems to have helped with the breaking but I still get some bouncing which resolves itself after a few dry burns.
I take my Kanthal and bend it at about a 45 degree to give me about a 5mm or 1/4" leg.
Take my Silver NR and place in between this 45 degree bend at the same length.
I do a three twist clockwise or away from me.
I then take and flatten the twist down on the the Kanthal wire.
With the other hand or NR leg end, I twist the twist about three to four times counter clock wise, tight.
What this seems to help with is the NR Silver comes straight out without any bends at the joint and keeps it from breaking during wraping.
You can play with the size based on how small you can get with your fingers.
I've been able to do the coil wraps to include about two wraps each end of NR. At least with the 32 Kanthal.
Still playing with it, but if the above makes any sense, give it a try
Sorry no camera for pictures....
 

WattWick

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You guys have no electrical knowledge

silver solder same stuff why not use it there

But this isn't silver solder, is it? However, you do have something of a point. Make sure these beads are 99.99% silver, and not silver solder. I wouldn't just buy anything that looks like these.

Just out of curiosity. Since these are crimp beads. Why not simply crimp instead of melting?
 

AMDTrucking

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NR-R-NR is the best thing for everything. I've got the Ithaka and built the little simple welder. And loved it so much then started using NR-R-NR method for everything. No more "Hot Legs" in any of my Genesis Atties. Specially when I'm using Flat Kanthal Ribbon. The non resistant leads are so much easier to trap under the screw and you don't care about the Leigh of it, plus non resistant wire makes much better contact with your post. Here are some examples that I built using NR-R-NR Flat Ribbon and I love it.



































 
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