Stainless Steel Mesh, Vivi Nova head rebuild frustration

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Whiteusmc75

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Aug 24, 2012
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Im about to toss in the towel with this one. Ive been using Vision, Vivi Nova heads for almost 3 months now. I started replacing the heads at first, and quickly moved to rebuilding them myself to save money and because I enjoy it. I decided to try my hand at rebuilding with SS Mesh because of all the excitement using it. I received the 500 SS Mesh yesterday from OKC Vapes. Kudos to OKC, the package arrived with the mesh and some 32g Kanthal in perfect condition. I have watched many videos now on how to rebuild the vivi head with the mesh. I cut out a 20mm X 40mm piece and rolled tightly around a needle. I used the blue flame from a torch to oxidize 4-5 times heating until it glowed, and quenching after every time. I then heated 4X with VG and quenched everytime to add some oxidation. The wick was tightly rolled, and blackened by the heating. I grabbed my 32g Kanthal as I always use, and tightly wrapped 4 times around the new SS wick. I am using a Smoktech VMax. I placed the newly built head on the ViVi Nova body to test the resistance, and got approx. 1.3 Ohm's one time and around 1.7 another.....When it would actually read. Other times I fired before adding liquid and putting back together, I would get a F1 error. I took a needle and moved the coils around because I believed they were touching each other, or touching the inside of the head where it runs thru the bottom. At times it would fire, but burn very hot, very fast. Almost as if it were going to pop a coil. The voltage I had it set to was 3.7V I believe. When I could get it to fire, I put the silicone head on and then the tank.....And nothing, I would get the F1 error again. Actually I found that only sometimes after moving coils around, without the silicone top on, and without the tank, the ViVi head would actually fire without the error. After about 5 tries, I gave up on doing that way, and decided to use cheesecloth to make a hybrid by running it thru the middle, and wrapping around the SS wick to "insulate" the wire from the SS mesh wick. At 5 wraps I am getting 2.0 Ohms, but it actually works. I don't want to use the cheesecloth to insulate the wick, I only want to have the rolled SS mesh with the wire wrapped over it. What the heck am I doing wrong here???????? By the end of my adventure last night, I was nearly ready to throw the Nova thru the wall! Any help or advice that can be given would be GREATLY appreciated.
 

Whiteusmc75

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Aug 24, 2012
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Evansville, Indiana
This is what I ended up with as a hybrid wick. DSCN1279.jpg
 

Thrasher

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well if it works with the cloth but not by itself this would most likely indicate a short. remember all the poking, prodding, bending and moving is going to scrape on the oxidization possibly exposing clean metal.
i dont rebuild vivis bit i would think i would bend the wick to the ushape needed then oxidize again and be very carefull when pushing itinto the slots on the shaft.

f1 and jumping ohms is almost certainly a short somewhere.
 

Thrasher

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actually while many believethe nova is a good start for rebuilding, i disagree its too small of a space and too many parts, a geni is simple, oxidize the wick, put it aside, drop a drill bit in the geni hole twist a coil, drop the wick in, adjust and go.

have you been to the rba section/ there are a couple tutorials there about what your trying to do and posting this there will get you a lot more help if you want to continue.
 

gimmieshelter31

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One thing that jumped out to me when reading your opening post was that you said you wrapped the wire tightly around the wick. Depending on how tightly, you may be cutting through the oxidized layer of the ss mesh thus causing shorts. I could be off base. Try wrapping the wire around the mesh, making contact but not pinching into it.
Also, you may want to try running your torch over the mesh surface before rolling. Not enough to blacken it, just enough to make it a gold/bronze color. Do your normal oxidation method after rolling. If it helps, you can spread the head open just a bit with a flat head screwdriver to give a little more room for wick insertion. Just a hair often helps.
 
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budynbuick

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May sound kinda mushy, but I don't really care. I posted this question just a short hour or so ago, and may of you stepped in to help. That's a pretty cool thing, thank you all. What a good community. Merry Christmas to you all


Not mushy at all. Great folks around here!

Keith
 
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