Done with Rebuildables unless there is some Help

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platinums

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Apr 10, 2013
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I had teh same feeling 2 weeks ago, TH was so bad I went back to analogs for a week. It wasn't the juice it was the way i was building the silica/mesh i think. Also chemicals in the silica might cause the harshness.

I had another bash with my evic and Igo-L dripping atomiser.
IMG_20130619_134803.jpg

3 strands of 2mm silica, 35mm long. Kanthal D Wire - Diameter : 0.20mm AWG32 wrapped 1/2, full, 1/2 around the silica, used a straightened paper clip for support.
Each 1/2 wrap is where its connected to the posts.

I always had a problem with hotspots, but to my sheer amazement it glowed fully the first time.
1.5 ohms, this will get quite hot quite quickly so start on a low wattage and build it up to your desired taste, Evic was usefull for this.

I loaded some juice and it vapes like a train at 10 watts on the evic.
I clean it in running warm water for a minute or two each day. Had it for 8 days so far and its working beautifully. I can change juices just by rinsing it under the tap + drying with paper towel + then go again.

I get a very mild throat hit, its pleasant not harsh like it used to be.

I think the most important this i did though was to boil the silica, for 5 minutes in a pyrex jug then air dry it for an hour on the clothes line!
Previously i noticed a sort of *taste* for the first few days on a new coil. After boiling absolutely straight into the juice taste, nothing else.

Im so relieved after all that I didnt permanently go back to the dirty analogs.
 
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Crash Moses

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So call me a mean i know I am when it comes to RBA's I know what a spot is, but what causes it and how do I avoid it?

Call you a mean what?

I think of a hotspot as a nightclub for electrons. In general it's a spot on your coil with slightly higher resistance than the area around it. Electrons will always follow the path of least resistance and if there isn't one they tend to bunch up and start partying generating heat (a more technical description would include hole flow and such but I'm trying to avoid that here so don't nitpic).

The best way to avoid it is to keep sharp bends out of your coil, make sure your coil is touching your wick but not too tight, and keep the legs of your coil the same length. Using lower resistance wire also helps as it's thicker and easier to work with and resists kinks better. I've had a lot of success using twisted 32 awg Kanthal if that's all that's available to you.
 

Crash Moses

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Thank you everyone for your help. Here is my procedure I go through.
1. 32ga Kanthal then I will put wire through lighter to burn off impurities
2. Doubled over 2mm Silica wick.
3. Wrap my coil about 3 to 4 wraps to give me a 2.1 to 2.2 ohm coil.
3. Mount coil to in this case RDA Octopus
4. Pulse the coils and check for hot spots.
5. Adjust any coil to get rid of hot spots.
6. Cover with e liquid and take a toot.
And here in lies the problem. On that pull and the inhale, It's not so much a burning dry hit taste but more of a I just inhaled a harsh sugar hit. Very sweet tasting but very harsh at the same time with not much vapor. The coils are getting hot.

I am starting to think that maybe it is a hot spot. Just not really sure. My coil seems to glow at the same time and with the same evenness. But man I will cough my lungs out on a hit from a rebuildable that I have made.

That just screams a hot leg to me. Sometimes it takes some fiddling to get my legs just right...even with a nice even coil.

On another note, I have some juice that whenever I drip it the first few hits are harsh but after my coil is heated up and going good it smooths right out...don't know why; maybe the menthol in it sooths the back of my throat...dunno.
 

Heavyrocker

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Dec 14, 2012
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Thank you everyone for your help. Here is my procedure I go through.
1. 32ga Kanthal then I will put wire through lighter to burn off impurities
2. Doubled over 2mm Silica wick.
3. Wrap my coil about 3 to 4 wraps to give me a 2.1 to 2.2 ohm coil.
3. Mount coil to in this case RDA Octopus
4. Pulse the coils and check for hot spots.
5. Adjust any coil to get rid of hot spots.
6. Cover with e liquid and take a toot.
And here in lies the problem. On that pull and the inhale, It's not so much a burning dry hit taste but more of a I just inhaled a harsh sugar hit. Very sweet tasting but very harsh at the same time with not much vapor. The coils are getting hot.

I am starting to think that maybe it is a hot spot. Just not really sure. My coil seems to glow at the same time and with the same evenness. But man I will cough my lungs out on a hit from a rebuildable that I have made.


It maybe the juice,what flavour you vaping and what brand?
 

Heavyrocker

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I have a Kamray K100 with two RSST's, never got a good hit yet, most probably go back to carts etc' (they are my favourites anyway)many wasted hours with coils and mesh, will give it till the weekend and if no better they will most probably find their way onto fleabay.

Dont give up,give it a break for a while and try again later,this is what i did and i finally got my AGA too work really good,i have a RSST im going too wrap this weekend,try the drill bit method,im surprised you have a hard time with the RSST,it spose too the easiest too rebulid out there.
 

GRH8095

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***

When it comes to ... Rebuildable Dripping Atomizer
I use the Igo-L & Nimbus V3

Some rules of thumb, I go by ...

I wrap a coil on silica ... loose ... not too tight ... I give the silica a little room to expand some, inside the coil.

The air hole, I drilled it out, to 1/16in
- a small air hole, will give you a tight draw, this can get things hot

I have a ZMax V3 Telescope Flat-top ...
- default setting is RMS ... Menu #8
- the MEAN setting, will mess things up, not even close to accurate.
 

Edaj1511

New Member
Apr 12, 2013
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London
Thank you everyone for your help. Here is my procedure I go through.
1. 32ga Kanthal then I will put wire through lighter to burn off impurities
2. Doubled over 2mm Silica wick.
3. Wrap my coil about 3 to 4 wraps to give me a 2.1 to 2.2 ohm coil.
3. Mount coil to in this case RDA Octopus
4. Pulse the coils and check for hot spots.
5. Adjust any coil to get rid of hot spots.
6. Cover with e liquid and take a toot.
And here in lies the problem. On that pull and the inhale, It's not so much a burning dry hit taste but more of a I just inhaled a harsh sugar hit. Very sweet tasting but very harsh at the same time with not much vapor. The coils are getting hot.

I am starting to think that maybe it is a hot spot. Just not really sure. My coil seems to glow at the same time and with the same evenness. But man I will cough my lungs out on a hit from a rebuildable that I have made.

I had the same problem with the spheroid, one advised me to check the coil legs and the coil is not to tight on the wick. He was right when I looked at the legs one of them is glowing red Recoiled and manage to improve it :)
 

Kycap

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Dont give up,give it a break for a while and try again later,this is what i did and i finally got my AGA too work really good,i have a RSST im going too wrap this weekend,try the drill bit method,im surprised you have a hard time with the RSST,it spose too the easiest too rebulid out there.

I can roll a good wick and coils are no problem, my Protank, Evod and RDA's are no problem. Its just so hit and miss with the RSST, i find carto's and tanks much more friendly tbh.
 

Crash Moses

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I can roll a good wick and coils are no problem, my Protank, Evod and RDA's are no problem. Its just so hit and miss with the RSST, i find carto's and tanks much more friendly tbh.

That's too bad...I found the AGA-T2 to be frustrating but my RSSTs have been nothing but a pleasure to work with.

But there's nothing wrong with cartotanks either. Love my cartotanks.
 

Crash Moses

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Meant newbie not mean sorry. Stupid iphone

umm. Ok my next question is how do i prevent a hot leg?

lol...no worries...I figured it was a typo. I was just funnin' ya.

Best way to prevent a hot log is to make sure that both legs of your coil are the same length and to make sure they aren't screwed down too tight which can crimp the wire (this is less of an issue with larger gauge wire...at least in my experience).

You won't always be able to prevent a hot leg 100% without lots of experience so if your coils heat up before the leg glows than your coil may be passable. If the leg is the first to glow just untighten that end and try to shorten the leg a little. It may take some fiddling but eventually you'll get it.
 

niczgreat

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Jun 5, 2009
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Thank you everyone for your help. Here is my procedure I go through.
1. 32ga Kanthal then I will put wire through lighter to burn off impurities
2. Doubled over 2mm Silica wick.
3. Wrap my coil about 3 to 4 wraps to give me a 2.1 to 2.2 ohm coil.
3. Mount coil to in this case RDA Octopus
4. Pulse the coils and check for hot spots.
5. Adjust any coil to get rid of hot spots.
6. Cover with e liquid and take a toot.
And here in lies the problem. On that pull and the inhale, It's not so much a burning dry hit taste but more of a I just inhaled a harsh sugar hit. Very sweet tasting but very harsh at the same time with not much vapor. The coils are getting hot.

I am starting to think that maybe it is a hot spot. Just not really sure. My coil seems to glow at the same time and with the same evenness. But man I will cough my lungs out on a hit from a rebuildable that I have made.

Two Suggestions

1. Try an ERA Indy Vapor or OKC Vapes carry them.
2. Use Ceramic Wick. Either FC-2000 Porous. Or Xc-116

Two Questions
1. What liquid are you using specifically what % VG PG?
2. What Voltage are you vaping at?
 

niczgreat

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lol...no worries...I figured it was a typo. I was just funnin' ya.

Best way to prevent a hot log is to make sure that both legs of your coil are the same length and to make sure they aren't screwed down too tight which can crimp the wire (this is less of an issue with larger gauge wire...at least in my experience).

You won't always be able to prevent a hot leg 100% without lots of experience so if your coils heat up before the leg glows than your coil may be passable. If the leg is the first to glow just untighten that end and try to shorten the leg a little. It may take some fiddling but eventually you'll get it.

When I build on a Reomizer there is no leg.
I use pliers and pull it in very tight.

My Build on Porous Ceramic Wick FC-2000
No Leg.jpg
 
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drkngl417

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May 22, 2012
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Tomz, when you pull your legs tight into the post your not getting any hot spots? I may have to look at getting a different atty. the only one I have with posts is my RDA octopus. I guess I will start looking at a few different attys. I love my cartos and carto tanks but I really want a great dipper to try different juices without wasting a carto. And to drip while at home. I know this takes practice. I will get a 50/50 juice at low nic for test purposes. I don't really want to give up on this but I am getting so frustrated.
 

drkngl417

Full Member
May 22, 2012
13
2
54
USA
Thank you to all for your help. Just built 7 wick and coils using different wire and wraps and wrapping the coil not as tight as I did before. Took extra time with the coil and no hot spots. The 7th coil was perfect 2.0 ohm no hot spots great flavor and no harsh throat hit. Thank you to all your guys help.

Now just a quick question. Is there a rebuildable atty that will position the coil under the drip tip. All the rebuildables that I have postion the coil off to one side of the drip tip except the Bulli A2. But that has such a small deck it is really hard to make a coil that you can get more then one toot before rewetting the wick. ERA looks amazing but still looks like the coil is off to one side. Want a rebuildable that when I drip juice into the tip it gets on the coil. Any other suggestions.
 
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