Okay so Ive been having some trouble with drifting ohms on my ithaka. I use cotton, so I burn my coil in without any wick. At this point the ithaka generally ohms out generally with around a .1 to .12 drop, I also tested the voltage drop on my ithaka by shorting it with a silver wire and it came out to a .1 ohm drop, which doesnt sound unreasonable but my wires definitely dont glow as brightly as my other atties. This is on sub ohm coils, generally a single coil wrapped with two parralel res wires which are twisted at either end and joined with a 30g .999 dead soft silver wire (from amazon). I generally shoot for .65 but after I pull my wicks through and reattach my wires, I then will be ohming at a .2 to .3 drop, which will drift. So TL/DR Is a .1-.12 drop normal on ithaka, and what could be causing my drifting resistance? I join my wires with tools and make the joins very secure, and the joins do not glow so im pretty certain ive got that part down.
Ithaka drifting ohms?
- Thread starter mitchob123
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Just double checked, rebuilt with same wire, same diameter, same number of wraps .53 on my origen dripper, .75 on ithaka. Would using two pairs of silver wires help?
NR nickel wires have 0,1 ohm resistance each, so your total in Ithaka will come at 0,53+0,2=0,73. But this difference doesnt make any difference on glowing mit.
I use silver though, the resistance should be under .05 for my silver leads. I shorted my ithaka and it read .1 ohm with the silver running through the channels, and .08 with the silver wrapped directly from negative to positive connection (~1 cm of silver max) so my drop should be around .02-.04. is .1 ohm drop standard for ithaka? because .1 plus say .04 for the silver (add more for oxidation over time, which would explain the drift I guess) would have me somewhere in the range of where I end up most of the time.
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Okay Imeo, Ill do another rebuild and take pictures along the way showing you everything I am talking about as well as my connection points and post them if I still have this issue.if you use silver then the issue is in your connection points mit
Thanks
Mitch
sure Mitch. Better make a small video counting ohms on a no NR wire and on a NR-R-NR wire
Looks like It must have been from a weak connection, when measuring with a multimeter I use a little tension so I get a good connection and it must have been ohming fine with the tension but then when I took the tension off and put it on the Ithaka the connection would get diminished. Even though my legs werent glowing I guess I wasn't getting proper connection.
Thanks
Thanks
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