DNA 40, NR, Nickel Builds

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mzsazri

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Got a question for anybody that can answer this. I did a nickel build on my subtank mini on my vaporshark rdna 40. I did 6 wraps of 30 gauge around a 3mm screw driver evenly spaced and its reading .19 ohms on my vaporshark. Now the question is does .19 ohms sound right for that build?
sound good.....
 

jazzvaper

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Got a question for anybody that can answer this. I did a nickel build on my subtank mini on my vaporshark rdna 40. I did 6 wraps of 30 gauge around a 3mm screw driver evenly spaced and its reading .19 ohms on my vaporshark. Now the question is does .19 ohms sound right for that build?

Depends on the total length including the legs:

(a) http://www.steam-engine.org/coil.asp?mat=ni200&r=0.19&id=3

So happens I just (moments ago) did 9 spaced wraps of 28 awg tempered around a 3 mm to get 0.19. And,

(b) what the DNA40 has done, or will do, in refinement:

http://www.evolvapor.com/datasheet/dna40.pdf


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jazzvaper

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Rikk

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It is a different beast but I'm loving it. When I do 6/7 spaced wraps on a 3mm rod with 30ga I refine at . 14ohms. 30ga is usually my goto but last night I built with 29ga and did 8/9 wraps and refined at . 15ohm. But like what was said above, I guess the total wire length is going to decide your final ohm's. .15 seems to be my sweet spot
 

jazzvaper

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Thanks for the quick reply. Just wasn't sure if my mod was reading the resistance right. I should really invest in a ohm meter

Yes, you should get an ohm reader; if for no other reason than to quickly rule out connection/510/other potential gotcha, and, to avoid wasting your time/tearing out your hair :))) searching for a problem an ohm reader could have already revealed.

The nastiest of all is a bad 510 connection, which some attys have out of the box/brand new.


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MidwestGuy

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I've got three DNA40s and have been using them since early November... just picked up the latest SX Mini M Class. Very, very, very initial first impressions are great. Super sold, very well built device. I'll be using my standard Lemo TC build on this and will report back.

MidwestGuy's standard Lemo TC build: 8 wrap 30AWG Ni200 tension/jig wrapped around an M4 left-hand-thread machine screw; 3.2mm ID. I have three of these, built identically, in my rotation. They all read .20ohm on all three of my DNA40 devices, and .14ohm (?) on my SX Mini. Interesting.

ETA: They're reading at .20 ohms now (which seems more accurate), within .005 variances. Not sure what happened initially.
 
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Podunk Steam

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I just did similar on a full sized Lemo although it was 8 wraps spaced of 28 gauge NI200 on a 3.43mm mandrel wicked with Cellucotton and it tested at .12 ohms. I'm at 24 watts and 470F which is a lot higher temp than I'm used to, my triple twisted 32 gauge will vape well at lower temps.

Edit: Correction, that mandrel turned out to be 3.43mm in diameter

This build seems to have a short ramp up time and does hit fairly strong. The twisted 32 gauge is slightly better for the fruit flavors I use most of the time but this is pretty reasonable with less intense coil building.

Edit: Thanks for the note on the SXmini!
 
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I had previosly posted about how lightning vapes wire maybe my problem.. Went out and got master of clouds whhile waiting for my temco to come in... Thougbt for sure it was user error after i got the same results with master of clouds....
Finnaly got my temco in and my first build was exactly what i wanted it to be.... Its a 10wrap 28g 3mm that operates on my lemo very nicely at 410-430 degrees... With the other wires it mever worked correctly and always was set over 470...
Maybe my first build with temco was justtt that much better over the 100s i built with other wire, but im goig to stick to only temco!!!
 
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