I can't take all of the credit. I got the idea from MisterE over on the modding forum. But, he's demonstrated it in RB tanks. I thought it would be good to try for the A7 on a grand because nothing was working for me. Turns out, this was a good idea!
Anyone try the A7 RBA ?? Will it fit?
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Hildicat do you sell ERA's as that is what it sound s like to me.
There are so many rba's out there & more coming as fast as the Chinese can make them.
Also you can't get the ERA & it's price at your door set is pretty high.
The Chalise is overpriced.
Keep on Vapin'
Louis
I knew it!, Hildi is neck deep in the Filipino RBA triad...get's us hooked on the ERA's, next thing we know we're on the street corner beggin' for Kanthal and Lydia's...fuggetaboutit...
honestly, I'm about 60/40 on the A7/ERA thing with the A7 taking the lead (you're right, the Chalise is nutz priced for what you get...guess it's a "by Mark Bugs" thing)...with the A7 drilled for side air and sitting on an o ring to seal off the bottom air (BF'ing only) and set up with a side coil facing the air hole the A7 pretty much runs on par with the ERA in all but physical size (the fact you can't swamp the coil in an A7 like you can in an ERA is a big plus...I have 3 ERA's so I know of what I write)...for the $20-$25 the A7 has to be about the simplest to build, biggest bang for your buck non-genny RBA out there atm
honestly, I'm about 60/40 on the A7/ERA thing with the A7 taking the lead (you're right, the Chalise is nutz priced for what you get...guess it's a "by Mark Bugs" thing)...with the A7 drilled for side air and sitting on an o ring to seal off the bottom air (BF'ing only) and set up with a side coil facing the air hole the A7 pretty much runs on par with the ERA in all but physical size (the fact you can't swamp the coil in an A7 like you can in an ERA is a big plus...I have 3 ERA's so I know of what I write)...for the $20-$25 the A7 has to be about the simplest to build, biggest bang for your buck non-genny RBA out there atm
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All true, but you're comparing a stock ERA with a modified A7. I have no doubt that the A7 can be made to work as well as the ERA, but some of us have neither the means nor the skill to pull that off.
I would opt for an ERA that works quite well as delivered over an A7 that may work as well if the necessary modifications are performed correctly. Knowing myself, I would probably bork the operation and end up with a $20 Christmas tree ornament.
Of course, this is just me pimping my Filipino brethren. (BTW- the Fatty is currently knocking my socks off...)
The Chalice is indeed great, but quite over-priced, especially compared to some of its Filipino and Chinese counterparts. Must be that Romanian (?) steel.
Jesus! Sounds like I'm out to start a race war. To each his own. Whatever floats your boat. One man's treasure. Yadda, yadda, yadda.
How about we get back to vaping?
I would opt for an ERA that works quite well as delivered over an A7 that may work as well if the necessary modifications are performed correctly. Knowing myself, I would probably bork the operation and end up with a $20 Christmas tree ornament.
Of course, this is just me pimping my Filipino brethren. (BTW- the Fatty is currently knocking my socks off...)
The Chalice is indeed great, but quite over-priced, especially compared to some of its Filipino and Chinese counterparts. Must be that Romanian (?) steel.
Jesus! Sounds like I'm out to start a race war. To each his own. Whatever floats your boat. One man's treasure. Yadda, yadda, yadda.
How about we get back to vaping?
Just pokin' ya Hildi ...
And ya, drilling the A7 for side air is a serious ..... (and that's with a drill press and tube vice)...I had to bore out my ERA's cause the stock draw was too tight for my tastes but making a hole bigger is considerably easier than making a hole, on a curved, polished surface through SS where one didn't exist before is another...just saying that if the guys that make the A7 really want to build a serious contender, offer up a version that is pre drilled and comes with an o ring (and thinner posts, with better screws)
...And ya, drilling the A7 for side air is a serious ..... (and that's with a drill press and tube vice)...I had to bore out my ERA's cause the stock draw was too tight for my tastes but making a hole bigger is considerably easier than making a hole, on a curved, polished surface through SS where one didn't exist before is another...just saying that if the guys that make the A7 really want to build a serious contender, offer up a version that is pre drilled and comes with an o ring (and thinner posts, with better screws)
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I got my A7 a couple of days ago. I rebuilt the coil using cotton yarn, but I'm doing something wrong because I'm getting an extremely harsh, make your throat sore TH and the vapor is pretty weak and unsatisfying. The two coils I made ended up being 1.6 and 2.1 on my meter.
Can someone please tell me the trick to the A7? I guess since I'm new to rba's, basic info would be helpful. How does the distance away from the center air hole effect the vapor and TH?
I'm a little disappointed at this point because my vivi nova on my twist is more enjoyable than the A7 on my reo grand.
Please Help...
Can someone please tell me the trick to the A7? I guess since I'm new to rba's, basic info would be helpful. How does the distance away from the center air hole effect the vapor and TH?
I'm a little disappointed at this point because my vivi nova on my twist is more enjoyable than the A7 on my reo grand.
Please Help...
Oh...is there any way to get rid of the annoying whistle?
I've built my new A7 for the first time, and it seems to work pretty well. Much smoother than the phoenix with the side air hole.
If it's whistling, you may need to adjust the air intake, which is also the positive contact in the connector. It turns in or out to adjust the draw. I'd guess that that could be too restricted, and making a harsher vape.
Another thing that I noticed: Depending upon how you attach the coil, it could end up sitting pretty much on top of the center air tube, which would be far too close. I did that at first, before noticing it, then took it out and flipped it over, which made it sit higher.
If you attach the coil legs on opposite sides of the posts, with the coil kind of diagonally between the posts, it sits nicely above the air tube. Proper air flow around the coil is key with these things, and they should be pretty smooth as long as the coil is directly in the air flow and the volume of air going through is enough. Usually with these, it's best to keep the coil a fair amount above the center tube (at least 3mm, IMO.)
You can also get a hot vape if the coil isnt wicking well which leaves the coil on the dry side. That makes the coil hot and dry which hits the throat hard. Have you dripped some juice directly on the coil then tried a hit? That might tell you if the coil is too dry.
Thanks, I didn't realize that the positive post was the intake control too, I'll have to play around with that tonight. So 3mm is about in the middle of the top of the air tube and the top of the posts. Does that sound about right?
I've definitely dripped some juice on the coil directly, it doesn't really change the harshness but give me a 4th of July type crackle and pop fireworks display without the sparks. I didn't expect a 2.9 ohm coil to do that.
Yeah, you definitely want it directly above the center tube for a smoother vape, at or above the side holes on the posts, so that the air is able to flow better around it.
The way I do it, I end up with a leg pointing in both directions off of the side of the wick (kind of a 'Z' shape,) when wrapping the coil. The legs will both be on one side of the wick that way, and I make sure they are on the bottom side when installing it, so that the rest of the coil sits slightly above the post holes that the legs go in. I've also wrapped the legs around the screws at the top (on the Phoenix, a similar rebuildable) before, and that worked pretty well, too.
Try to keep all loops on the coil spaced well, and don't let the legs be too long, to prevent hot spots.
Here's a decent video on rebuilding an A7. It's a little hard to see much detail, but it's not terrible, either:
A7 rebuildable atomizer - YouTube
I know that I'll be trying several different coil setups in this thing, but it'll be awhile before I get around to needing another coil in this.
adjusting the center post, will NOT adjust air intake 
It is there to adjust the length of the positive connection in case it is too short...
I have had no issues with my coil setup, taste is consistent and has a descent throat hit... but that can be fine tuned with how you set up your coils' ohms.
centre is unscrewed for a better visual of coil position.
It is there to adjust the length of the positive connection in case it is too short...
I have had no issues with my coil setup, taste is consistent and has a descent throat hit... but that can be fine tuned with how you set up your coils' ohms.
centre is unscrewed for a better visual of coil position.
adjusting the center post, will NOT adjust air intake
It is there to adjust the length of the positive connection in case it is too short...
I have had no issues with my coil setup, taste is consistent and has a descent throat hit... but that can be fine tuned with how you set up your coils' ohms.
centre is unscrewed for a better visual of coil position.
View attachment 152569
Right, I think Lucent said the positive post adjusts airflow. That's a pretty cool coil setup, sorry if I come across as a complete noob with the next question but hey, I am... Won't the SS mesh short if you have it touching the posts?
Have you ever used cotton yarn? I'm curious as to if I'm using too much and restricting air flow. Sometimes I feel like the liquid is still liquid instead of vapor.
One of the reviews on Empire Mods said that it adjusted airflow. I have not had a chance to try it, so I can't verify it. It looks more likely that it's just to adjust the center pin position, as BuzzKilla said.
The SS wick in that pic is oxidized, so that it will not be electrically conductive.
I have used cotton yarn. I've found that the ones that I had tasted bad, even after boiling them. I found butcher's twine or cotton balls to be better, but I use 6-8 threads of Aunt Lydia's size 10 bamboo crochet thread these days.
You do have to watch out that it does not choke off the airflow, because it swells a lot. It can tend to flood your coil a bit if you over-drip, too, because it wicks so well.
LucentShadow said it right.
the positive post adjustment does nothing but extend, this is just in case your mods 510 connection is very recessed and wont make contact... i think the airflow myth is just rambling and wishful thinking regurgitated as fact. even reviewers make mistakes
my SS wick has been oxidized and i have never had a short because of it. The setup pictured never gave me shorts or hotspot issues, go figure. but, my did clone was a nightmare the first night.
I think I figured out my vapor problem. I had my A7 screwed down too tight on my grand. I twisted out the positive post on the bottom to where it stuck out about .5mm to 1mm past the 510 base, then tightened it down on the Reo to where it's just barely snug. Now I'm getting a lot more vapor and the TH is more...punch you in the throat and less burn your throat. I guess I was choking it for air with the way I had it before.
I got a broken A7 included in a classifieds purchase. It has the bottom center pin adjustment screw broken off inside the center post. I do not know of anywhere to get a replacement screw so I have not spent a lot of time trying to get the broken one out yet. Longshot I know but I thought I would mention it here and see if by chance someone knew of a source for one?
It's not a big deal as they are so inexpensive and its still useful to rob parts off of but I hate having a broken one, I simply can not have something broken and NOT try to fix it. The way I am wired I guess.
It's not a big deal as they are so inexpensive and its still useful to rob parts off of but I hate having a broken one, I simply can not have something broken and NOT try to fix it. The way I am wired I guess.
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