VaporShark rDNA

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flavorpursuit

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I've only used my KF's (KFL+ and KFL+ v2) for ni200 builds. They work great when built correctly.

KTMRider, what's your guage / ID / wrap amount / wicking material, and what TP Limit. Also, spaced or contact coil?

Currently, I'm trying to get this to work with 9-11 wraps of 30g around 3.5mm..spaced coil, TP set to 420F. (Getting between .15 and .17ohms). Not having much luck getting it to go over 8 watts. Hits TP fast after that..it bursts up to 11. I'm trying to get it to stick at 12 watts without hitting TP. I think wicking is good; when I check cotton it is always soaked when I take it apart.
 
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KTMRider

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KTMRider, what's your guage / ID / wrap amount / wicking material, and what TP Limit. Also, spaced or contact coil?

Currently, I'm trying to get this to work with 9-11 wraps of 30g around 3.5mm..spaced coil, TP set to 420F. (Getting between .15 and .17ohms). Not having much luck getting it to go over 8 watts. Hits TP fast after that..it bursts up to 11. I'm trying to get it to stick at 12 watts without hitting TP. I think wicking is good; when I check cotton it is always soaked when I take it apart.

I have 2 different builds currently.

KFL+ has .13Ω 30g twisted spaced at 10 wraps around a 2.8mm drill bit and using rayon wicks. TP set at 420°F and 16.5w.
KFL+ v2 has .13Ω 28g spaced at 11 wraps(?) around 2.8mm bit with rayon. TP set at 420°F and 16.5w.

I rarely hit TP on either build and it's usually just around 400°F (when I'm looking at a mirror). Vapor and flavor is very, very good on both builds. I've seen it burst to 25w when cold and I've seen it throttle down to 7w when I chain vape but the flavor and vapor doesn't change at all.

If you're having problems, check your coils and make sure they're not touching. Tighten the post screws really well.

I have a KFL+ v2 with a 1.5Ω build on my dna 30 (12w) and my 28g .13Ω is slightly better in both flavor and vapor.
 

Ardy

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Just tried my first Ni200 build. It was..nervewracking. I've never been a subohmer and never thought I would ever be shooting for something as low as .15. Pbusardo's site today said that Evolv changed their "typical" build to a .40. I looked for this information to see the source but I was unable to locate that. Anyone have anything on it?

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

Looks like they did bump their typical ohms to .4 That would be hard to get to. Wonder if these guys actually build their own coils? For me to get to .4 would require a lot of wraps with 32ga and probably would need to wrap it directly around the rayon. Forget about .4 on a dual build. They recommend up to a 1.0 build. How could you even hit that? It would have been better if they lowered the target to .1 Then you could use 26-28ga for easier builds, and get duals with 30ga. Seems like all it would take is a software fix. Maybe the TP doesn't play as nice with lower gauges. It would be interesting to hear from them how they hit the typical .4 target.
 

jackrussel

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

Looks like they did bump their typical ohms to .4 That would be hard to get to. Wonder if these guys actually build their own coils? For me to get to .4 would require a lot of wraps with 32ga and probably would need to wrap it directly around the rayon. Forget about .4 on a dual build. They recommend up to a 1.0 build. How could you even hit that? It would have been better if they lowered the target to .1 Then you could use 26-28ga for easier builds, and get duals with 30ga. Seems like all it would take is a software fix. Maybe the TP doesn't play as nice with lower gauges. It would be interesting to hear from them how they hit the typical .4 target.

I don't think they are "recommending" up to 1 ohm. I think it's more like the range that it will be able to fire at its advertised specs. Just like 0.16 is NOT the minimum resistance for a kanthal build. 0.16 IS the minimum that it will be able to deliver 40 watts while staying under the amperage limit. You can build a kanthal coil under 0.16, you just won't get 40 watts out of it. Same thing with the 2 ohm "limit" for non nickel. You can put a 3 ohm coil on it, you just will not be able to fire at 40 watts.
 
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laurie9300

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TheKiwi

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Hand check!

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TheKiwi

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Oh no, is that a cheap-azz Lemo Drop? :p :D What's the DT? Are you using it to reduce the airflow?

And, which squonker is that? Thanks...

Hehe exactly. A cheap azz Lemo drop :DDD

It's a modish metal wide bore drip tip. Excellent but damn pricey little suckers. I actually bought it specifically to maintain the higher airflow. Found that standard drip tip really reduces it >: (

That's a REO grand with a rogue RDA on top


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flavorpursuit

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

Looks like they did bump their typical ohms to .4 That would be hard to get to. Wonder if these guys actually build their own coils? For me to get to .4 would require a lot of wraps with 32ga and probably would need to wrap it directly around the rayon. Forget about .4 on a dual build. They recommend up to a 1.0 build. How could you even hit that? It would have been better if they lowered the target to .1 Then you could use 26-28ga for easier builds, and get duals with 30ga. Seems like all it would take is a software fix. Maybe the TP doesn't play as nice with lower gauges. It would be interesting to hear from them how they hit the typical .4 target.

Thanks for verifying that.

The trials of the rDNA 40 continued late into the evening last night. I built something like 20 different nickel coils and scrapped each one of them. I decided it was time to go back to basics - perhaps I've always been a crappy coil builder but it never showed with Kanthal. I reviewed some of my favorite "how to coil / macro / micro" and did my best to replicate their techniques. I replicated that process and was more successful around coil 24.

I made a contact coil and did dry burn (with TP on 450) and just sort of fiddled with it for a bit. Then - like magic, the KFL+ was able to fire to 15 watts without a problem. I also stuffed a LOT of cotton in that build, for good measure. It was working all through the night! Cheers! 5am and I'm vaping like a fiend until I fall asleep.

I wake up the next day, that same coil reads -.02 off the build resistance (.15, down from .17). I try to fire.. it hits TP at 7watts. Frowny face. I notice though that it seems a little flooded (gurgle). It hasn't leaked at all ,but a little flooded to say the least. Perhaps this accounted for the change in res?

I build about 5 more SPACED coils for two other tanks. To of the new coils appear worthy. I slap one in my other KFL+ and one in my K4.

The K4's resistance reads .34 when it should read something closer to .20. Sadface. It vapes well though without hitting TP even set as low as 410degrees. It's probably just burning something. I set it aside. Pick it up a few minutes later - .24. ... it's still vaping into the 16watt range without difficulty.

KFL+ #2, which I just built this morning, reads .17 and vapes well. I set it down, and in rotation, pick it back up. It's hitting TP at 4watts. ...

I pick back up KFL+ #1, which as I said, I built last night. It's resistance has gone BACK to .17, and it's vaping like a champ.

I should mention that I've been having the MOST luck by doing a 360degree wrap around the post screws. I don't know why but just half-wrapping them I've been having trouble keeping the Ni300 from slipping out or hanging on the outer edge of the screw instead of staying in the inner part of the screw.

.... maybe I'm just a garbo builder.
 
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Heespharm

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Hehe exactly. A cheap azz Lemo drop :DDD

It's a modish metal wide bore drip tip. Excellent but damn pricey little suckers. I actually bought it specifically to maintain the higher airflow. Found that standard drip tip really reduces it >: (

That's a REO grand with a rogue RDA on top


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I don't use a drip tip in mine at all ... Anything with that reduced drip tip connector I just vap straight off the device... High air flow


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jazzvaper

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I don't use a drip tip in mine at all ... Anything with that reduced drip tip connector I just vap straight off the device... High air flow
Sent from my iPhone using Tapatalk

Rebuilt my (full) Lemo a several hours ago: 9 (spaced) wraps on a 2.4 screwdriver with 1/3 of the length of KGD as wick. Came in at 0.17 on the ohm reader and 0.14 on the VS rDNA, initially. It then went to 0.20 and settled in at 0.19 on firing.

After about an hour and a half it went haywire: voltage mode...hold the fire button, back to TP...rinse, repeat...checked the 510, no love...back and forth V to F.

The battery was at about 1/4 remaining so, on a lark, I pulled it, replacing with a freshly charge (stock) LG.

Don't want to jinx myself but it has been at 0.14, 430F, 15 watts...steady...for the past nearly hour. Put in down, pick it up doesn't matter. It's steady as a rock.

Grist (not wild speculation) for the mill.

BTW, I have some more wide-bore DT's coming in this week but like the VA Chaplain 'cause it focuses the vape: Long, slow pulls, mouth to lung or lung...very satisfying.

BTW 2i am, almost exclusively, a Max VG vaper. To eliminate a possibly extraneous variable I must say the the refill of the Lemo, earlier today, was with "Looper", which is certainly not a Max VG liquid.
 
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