SMOKtech makes a better kayfun?

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autobiogphnation

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So my RSBT has had it's ups and downs. The two builds I did previous to what's in it now were giving me wicked dry hits (cotton lightly poking out the holes and a silica build). The current one has been going strong for three fills and I think I've found a winner, it's sort of a kayfun like build. I made a 2mm 30 gauge 5 wrap microcoil at 1.0 Ohms, threaded a piece of sterile cotton through and clipped so it hung out the sides about a half inch on either side then tucked them in the well so the cotton touched the bottom of the well and pressed up the sides to cover each hole then made a 90 degree angle to the coil. No floods or dry hits! Working better then my second build which i felt was successful.

Once I vape through this tank I plan to rebuild and post some pics....
Glad to hear you got it working good now. I posted before on building with cotton and tucking the tails in but pressing it against the walls so that the cotton covers the channels. Others have tried and had good success with it as well, but it can be very problematic if you get it just a slight bit off.

I had to tear a build down today to adjust the cotton because too much liquid was getting into the deck and it would leak at the bottom (from airflow holes and then run down under the ring to the bottom), but a simple adjust to push a little into the channels improved it greatly.
 

Sgt.Rock

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Swapped mine out yesterday for a new build..this one looks the same as the one I posted last week. Did this one with 5 wraps of twisted 30 ga Kanthal (tightly twisted and torched red hot and allowed to cool before coiling) --Using 2 mm Silica (torched) I used one center strand out the holes with three additional strands cut short to just outside the coil. Coil tested at 1.1 installed and runs like a champ.

No leaks..no dry hits and loads of vapor even down to 3.7 on the VTC5 18650 in my Stingray.

I'm planning on ordering another one or two shortly. I've investigated all the other tank style rebuildables and find nothing for anywhere near the $30 mark that even looks interesting. Yes there are a few $75, $100 and $150 models out there that look like they might be awesome but I'm not spending that much dough on a tank when it would be marginally better than this $30 bad boy is.

Between this RSBT and my two Caterpillar RDA's running at .6 Ohms for when I'm feeling frisky I'm pretty satisfied with Smok originals so far.
 
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Noserenity

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I hope someone doesn't get angry at me for necro-threading... Or they can, if they like, whatever.

I love this rsbt hybrid.. It was my first rba. I bought it while I was waiting for my kayfun 3.1 clone to get shipped, and I bought it from my local b&m. It's been a little over a month. I like this rsbt better than my kayfun.

I have vaped the heck out of both of these tanks. Avging a bit over 6ml a day lately. High to max vg, so I'm vaping very thick juice. This RSBT destroys the kayfun. I don't get dry hits. At all with normal usage. If it's been on it's side while I sleep I need to prime puff it a little and then it's good for the day. The airflow is the biggest bonus and I think it contributes to my final factor over the kayfun. But this airflow is incredible. I would probably love drippers because I really enjoy airy lung hits, but this thing performs greatly for me.

But the final reason I like this over the kayfun: Flavor. I get so much more flavor out the simplest builds on this tank. I get plenty of vapor production on the kayfun. I'm fairly confident I'm building my builds right on the kayfun. Especially since I prefer high vg juice I really needed to get that right and have watched hours of youtube kayfun builds. But I get much better wicking and flavor on this rsbt. The kayfun does ok, I have to prime puff a little bit, especially on a fresh build. I almost never have to prime puff on this rsbt. I am not using a bunch of cotton down the deck like I see a lot of people doing. I do not appreciate pbusardos build with the wick sticking out, though with pg heavy juices it's probably just fine. I just simply use cotton flush to the edge of the juice hole. If the juice is really extra thick, I just take a screw driver and with the chimney section on, I push a little bit of that cotton into that juice hole a tad. Enough that some strands still tuff out the hole a little bit but aren't clogging it. No dry hits.

I use a 2mm driver to do my coils and that screwdriver easily fits into the channels so I can secure the coil easily. I only use a single strand of cotton that is firm, but not tight inside the coil. Tight enough where you can move it from side to side through the coil but there is definite resistance. I try to make sure the juice holes are plugged with cotton as I tighten down the chimney on a fresh build. I use thick juice so like I said previously I just poke the cotton in just slightly after the chimney is tight. Not all the way in though, you want the cotton to be secured to those holes. I do the most common kayfun type filling method with this. Just unscrew the top portion ignoring the fill screw, fill, and when screwing the top back on, simply go a couple of threads in till the o-ring is inside the tank then tip upside down to tighten. Now that I understand the build it's as easy as the kayfun, if not easier.

I'm sorry for the novel. I just love this tank. I get no leaking, gurgling or dry hits. I fail to see how this has not taken off. It's like a taifun evolved. Most of the build video's out there don't do this tank justice at all. Carl Richardson does a fairly good job in his. I'd just hate to see this style dissolve before it gets noticed properly. There aren't insulators in there to worry about so you can limbo dance with the ohms if you want. Go right on ahead. I have done a .7 ohm build myself, currently on a 1.3 ohm because my mech mod turned out to be a dud and can't afford another at the moment. I have read the tank section is pyrex so you can throw any juice at it. Last but not least, the price. It's cheap, and looks very pleasant to my eye.

I had planned on getting some sort of squape reloaded clone, but I will probably be purchasing another rsbt hybrid. There must be others who are loving this thing as much as I. Are there?
 

Sgt.Rock

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I've been using mine every day now for over 4 months as my primary device and I'm not even thinking about looking for a different one. It sees 80%+ of my daily vaping with a BVC Nova-S picking up the slack when/if I feel like hitting it for a menthol burst.

My method is completely different however. My tank only gets fed unflavored 50/50 so I never need to change wicks or dry burn or any of that happy crap... although I do change coils if/when I feel like running a different ohm coil or just for the hell of it.

My coils are 28 ga wrapped around 4 strands of 2 mm silica with one strand poking out through the wick holes and the others trimmed to fit under the chimney.

I have run from .5 ohm through 2 ohm coils built from 26, 28, 30 and 32 ga..single, twisted and braided on mine and settled in at between 1 and 1.2 ohm 28 ga single strand coils as my standard build.

All I ever do to fill is unscrew the fill screw and fill with a syringe. My RSBT might go weeks without ever being completely empty and I run through about 8 mls a day minimum...10 or more on occasion.

This device meets all my needs and desires for an all day tank.
 

autobiogphnation

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Few tricks I picked up on that have helped the quality significantly:
Build your coil so that the legs will be on top side of coil. I was so used to kayfuns that I was doing the legs on the bottom, thus longer legs and probably hot spots.
Do not sit any wick into liquid channels of deck. Just let it rest against the deck wall by that channel. (I press the wick against the deck wall, so naturally some sits in the channel but very minimal)

Since doing those two, I have a tank that is on its 5th fill with same coil (2ohm micro coil) and cotton and I'm using an apple pie flavor (smokin crow).

The only downfall is she floods on fill up since the cotton isnt seated into the channels, so be prepared. Turn her upside down after fill up, open airflow and let the excess flow out the center (you can catch it in a bottle). Once she stops, just wipe up, add your cover and vape away.
 
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Noserenity

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I've vaped the crap out of mine. I've replaced the build screws and the 510 screw from the hardware store. Had to cut and file them down a bit but it's better than before. Using kgd cotton and this thing is still my all day vape. My revel will be here tomorrow but I still believe this is going to be my top "go to tank". I started using the fill screw since using the kgd and shortening up the wick to just touch the channels just like autobiogphnation said. My favorite mix has gotten to be 80/20 vg/pg making my own juices, this thing wicks great.
 
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autobiogphnation

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I just had an idea that could make filling the tank easier and allow for the ability to work on coil without draining.

If a nut was added to the chimney top threads protruding from the top cap that secures the cover, then the tank could be invested and deck removed.
What do you guys think of that?
 

Sgt.Rock

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That should work as long as the tank was down a bit...a full tank would probably be a bit messy!

I usually just suck the juice out of the tank with a regular needle/syringe with the sharp bits files off. The flat side of the tip allows you to slide it almost all the way to the bottom of the tank and I only lose a few drops.

Your idea sounds like it's definitely worth investigating..have to look around tomorrow--I'm sure I've got a nut that size around here somewhere!
 

autobiogphnation

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That should work as long as the tank was down a bit...a full tank would probably be a bit messy!

I usually just suck the juice out of the tank with a regular needle/syringe with the sharp bits files off. The flat side of the tip allows you to slide it almost all the way to the bottom of the tank and I only lose a few drops.

Your idea sounds like it's definitely worth investigating..have to look around tomorrow--I'm sure I've got a nut that size around here somewhere!
Please let me know if you give it a try. I tend to have a little flooding when I fill up on a used wick (after being of a full tank), so I'm thinking if you fill like this, floods could be avoided
 

Sgt.Rock

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Will do.

On a cursory look round my lair however I haven't seen any nuts with fine enough threads yet. I'll see if I can come across one tomorrow and will post back if I get lucky ;)

On another note, I've been running a twisted 28ga Kanthal microcoil on mine now--6 wraps wrapped tight around 2 strands of 2 mm silica with one strand trimmed next to the coil and the other through the channels measuring out at .8 ohms and it runs like a champ!

Freakin' love this rig.
 

Sgt.Rock

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Got distracted with the honey-do list and haven't had the time to pursue this much yet.

No proper size/thread pitch nuts available here that I can find so I guess I'll have to hit the hardware store on one of my trips to town.

I'd just hop in the truck and go but it's at least 20 minutes to anywhere from out here in the woods ;)
 
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