What is wrong with this coil?
- Thread starter tmcase
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tmcase, I know you might not be what ya wanna hear but all this evidence points to a short. The early glowing top coil, and the resistance being so much lower than it should be.......these just scream that the wick is shorting out somewhere, maybe at the coil or maybe at the tank body.
Wanna test the theory? As a test, remove you wick completely and connect just the coil by itself. Set voltage down a lil bit and test the resistance.......betcha it will be right about where ya want it. I also use 34ga wire and the same wraps should get about 2.5 ohms.
If it does come out at the right ohms then fire the coil, I am willing to bet that it will glow nice and even from the center of the coil out to the legs with no "hot-spot" on the legs.
I have one of these atomizers on the way but I have been able to eliminate shorting on both my G-tank-US and my bliSS and they hit perfect every time.
Good luck man..
Wanna test the theory? As a test, remove you wick completely and connect just the coil by itself. Set voltage down a lil bit and test the resistance.......betcha it will be right about where ya want it. I also use 34ga wire and the same wraps should get about 2.5 ohms.
If it does come out at the right ohms then fire the coil, I am willing to bet that it will glow nice and even from the center of the coil out to the legs with no "hot-spot" on the legs.
I have one of these atomizers on the way but I have been able to eliminate shorting on both my G-tank-US and my bliSS and they hit perfect every time.
Good luck man..
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I did you test. With wick in it read 2.5 ohms. Took the wick out and it still read 2.5 ohms. I fired it up and all coils glowed evenly and at the same time. Coil still measures 2.5 ohms. I'm almost positive the mesh wasn't touching the bottom of the tank although it's hard to tell with a ss tank so where is the short?
hmmm, earlier posts aid that that you couldn't get the resistance of the coil to stay solid.....
"...I've gotten a resistance of .08 to 1.2 ohms with each try. Even with 5 wraps of .34 ga Kanthal I can't get above 1.2 ohms...." and
".....What's weird is my coil started out at 2.0 ohms with 6 wraps of .34 ga Kanthal. After vaping for about 5 - 10 minutes my ohms dropped to 1.3 ohms....."
these definitely point to a short.
Now, if you got yer coil firing solidly at 2.5 every time then I can understand a possibility of a wicking issue.
Suggestion, your wick looks pretty thick....as in it takes up most of the wick hole....meaning it may be keeping air from getting back into the tank part thus not allowing juice to ride up the wick as it should. Have you tried removing the "fill-hole" screw to let some air in and see if that changes anything?
"...I've gotten a resistance of .08 to 1.2 ohms with each try. Even with 5 wraps of .34 ga Kanthal I can't get above 1.2 ohms...." and
".....What's weird is my coil started out at 2.0 ohms with 6 wraps of .34 ga Kanthal. After vaping for about 5 - 10 minutes my ohms dropped to 1.3 ohms....."
these definitely point to a short.
Now, if you got yer coil firing solidly at 2.5 every time then I can understand a possibility of a wicking issue.
Suggestion, your wick looks pretty thick....as in it takes up most of the wick hole....meaning it may be keeping air from getting back into the tank part thus not allowing juice to ride up the wick as it should. Have you tried removing the "fill-hole" screw to let some air in and see if that changes anything?
I've never had very good luck with coils using 34Awg Kanthal on Genesis style coils, 28-30-32 works much better with 28 & 30 being the best in my opinion.
I've made several more coils since that quote. Sorry about that. I'm certain that it is a wicking issue since the silica is wicking pretty good. And all of my coils show no hot spots when I add juice to the wick. It's only after the wick drys up that I get the hot spots. With the silica thread it just doesn't have any flavor or much vapor. Yes, I've tried leaving the fill whole open but no change with just mesh. I'm going to start over with 400 mess and a cotton strand. I don't have any 500 to try.
I'm trying for higher ohms so that is why I'm using 34 Kanthal.
Right on man.
I use a 4/5 wrap of 34g on both my bliSS and GTUS withiout issue. They both give me a good 2.2 ohm coil that settles into a stable 2.4 after break-in.
I can't really comment on 100%vg as I only use 50/50.
Just some more thoughts, sorry if it was said somewhere else before but how is wick rolled? Is it really tight and solid like a stick? or does it have more a "straw" or tube style to it?
Also, I ended up using this method on all my wicks with great success and repeatability :
Mesh/Cotton hybrid wick Bluegrasslover's method - YouTube
I initially used this technique to help keep from shorting but the extra bit of cotton seems to help keep that dang coil wet also.
I use a 4/5 wrap of 34g on both my bliSS and GTUS withiout issue. They both give me a good 2.2 ohm coil that settles into a stable 2.4 after break-in.
I can't really comment on 100%vg as I only use 50/50.
Just some more thoughts, sorry if it was said somewhere else before but how is wick rolled? Is it really tight and solid like a stick? or does it have more a "straw" or tube style to it?
Also, I ended up using this method on all my wicks with great success and repeatability :
Mesh/Cotton hybrid wick Bluegrasslover's method - YouTube
I initially used this technique to help keep from shorting but the extra bit of cotton seems to help keep that dang coil wet also.
Update: I made a new coil out of 400 ss mesh, oxidized the hell out of it, wrapped 5 wraps of .34 kanthal and got 2.0 ohms. It didn't wick worth 
So I started over using the same 400 mesh, trimmed a bit off and wrapped it around a #1 cotton strand and did the cotton method mentioned above. Used 6 wraps of .34 Kanthal and got 2.3 ohms. After some fiddling to get rid of a couple hot spots it's not wicking pretty good. Flavor is better but still not as good as my carto tanks or REO but ok. Vapor is better but still no plumes or clouds. I'll try it like this for awhile and see if it improves. If not, I'm out of the genesis market. Way too much hassle and no gain. My Penelope is WAY better in flavor and vapor and never a dry hit.
So I started over using the same 400 mesh, trimmed a bit off and wrapped it around a #1 cotton strand and did the cotton method mentioned above. Used 6 wraps of .34 Kanthal and got 2.3 ohms. After some fiddling to get rid of a couple hot spots it's not wicking pretty good. Flavor is better but still not as good as my carto tanks or REO but ok. Vapor is better but still no plumes or clouds. I'll try it like this for awhile and see if it improves. If not, I'm out of the genesis market. Way too much hassle and no gain. My Penelope is WAY better in flavor and vapor and never a dry hit.
Don't give up just get a better genesis style rebuildable. I have the same one you show in pic and tried many different mesh wicks and never could get it to wick good enough to Vape right..Get your hands on a did, zau, hellfire something like that should fix your problem..I spent many hours trying to get the svc genesis style to wick with higher vg juice and no luck..so if you figure it out let me know also if not get a better device cause I've had no problems with ones mentioned with same mesh and coil setup...my next step is drilling the wick hole bigger to accept a thicker rolled# 500 mesh wick I will get back to you if this works if not back to the drawing board or trash.
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I may give up on this one but I haven't given up on the genesis yet. I'm in the mini scuba gen v3 that's been held up forever and if I can't get a good coil setup out of that one then I'm done with genesis. I may drill out the wick hole so I can wrap mesh around a #3 square braided cotton strand. If that won't wick nothing will. Thanks everybody that has helped.
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