PDIB's Making MODs!

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pdib

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bookmarked for future reference :vapor:

for the newbies like myself, found these very helpful

valheli-albums-vpics-picture294354-ohms-law-wheel.jpg






good stuff! Love it! :)


do one on drilling out an atty for bottom feeding . . . . oh, wait, I've got one somewhere . . . . .
 

pdib

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Umm... Wha...? Lol

For the newbies who DONT want to do actual mathematical calculations, there are phone apps and websites that do them, circle less. Lol

Jesus just looking at that thing makes my brain hurt lol



It's resource time!


Ohm's and Joule's Law Calculator

I like this calculator. (use 4.2V for a fresh battery)
 

pdib

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If you have a look at the pics, you'll see a very shallow drip basin, it's 1mm deep. I try to fabricate the 510+ post so that the atty seats at 1/16" above that drip cup. Drop a 1/16" o-ring in there, and you've got a nice seal, and basically a flush mount. Not necessarily a NASA flush mount, but within a few tenths of a millimeter. Atties' 510s vary by a few tenths of a mm, so that's as close as I can get with a rigid post (that also serves as juice feed and + contact leaf connector).










(goody-bags will contain a 1/16", 1.5mm and 1mm o-ring for this purpose)
 
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gjustin79

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I'm so excited. Wood ordered last night!!!!
ProVarinati, Reonaut, & Dibbler....Like A Boss!

Sent from a big phone....Galaxy Note 3

What kinda wood did you get lex??

Also mr dibby, I just ordered two AW IMR 18650 button-tops. I'm gonna assume those will fit in the mod?
 

ValHeli

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Newb battery questions:

Would it be safe to assume that all AW / IMR 18650 batteries fit ? I've read some recommendations on 20A - 30A continuous discharge batteries but aren't they only applicable for dual coils and sub-ohming? . When I started vaping 2 months ago, I just read a thread here saying that IMR chemistry is safer so that's what I bought. I got a bunch of Efest V2 2000 mah 18650 but I couldn't find any info regarding its rated discharge amperage. I went as low as .8 ohms on my single, dual coil, and twisted coil builds (sometimes .6 ohms) and the batts seem to be holding just fine (no leaks, gas, warming up / getting hot ) and I don't deal with stacking batteries.

edit: The info was not on efest but I found a vendor site stating that 18650 2000 mah is rated at 10C Max discharge but not to go over 10A as precaution (not sure if it's accurate though). So I guess my builds are good as long as I don't pull 10A and the lowest resistance I can go is .5 ohms. I'm happy vaping between .8 - 1 ohm. This gives some head room when I pull 5.25A @ .8 ohms with a freshly charged battery. :vapor:
 
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ukeman

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very important questions there…
aw imr 1600 are the most popular for quality reasons (yet they vary in length +/- 1mm), and are preferable to the 2000 mah of same) and will handle a .6 and up resistance with no problems. This is tried and true.
There are batts that have a higher amp output for going .5 ohms and under (its done a lot).
I've read that aw imr 1600's are ok to use even lower than .6 ohms if you don't hold the firing button for more than 5 or 6 seconds, which is a pretty long draw.

Best to choose a good battery and let Pdib know ahead of time so he can set the tolerances …. buy a few.

A "short" in your atomizer is another problem (user error) … someone more knowledgeable will give you that info… but the fuse should be your safety function. Thats why you need to meter your coils first.
If your coil demand exceeds the batt amp limit, i assume the fuse would prevent any damage as well.

I've seen lots of threads … maybe google sub ohms vaping safety guidelines; you'll get a lot to read.

Newb battery questions:

Would it be safe to assume that all AW / IMR 18650 batteries fit ? I've read some recommendations on 20A - 30A continuous discharge batteries but aren't they only applicable for dual coils and sub-ohming? . When I started vaping 2 months ago, I just read a thread here saying that IMR chemistry is safer so that's what I bought. I got a bunch of Efest V2 2000 mah 18650 but I couldn't find any info regarding its rated discharge amperage. I went as low as .8 ohms on my single, dual coil, and twisted coil builds (sometimes .6 ohms) and the batts seem to be holding just fine (no leaks, gas, warming up / getting hot ) and I don't deal with stacking batteries. So am I an accident waiting to happen? :facepalm:

I still don't quite understand the dangers of these batteries as to what conditions are they subjected to render an explosion. If someone could please post a link or thread explaining this, I would greatly appreciate it.:toast:
 

pdib

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The fuse doesn't know what type of battery you're using. There are batteries with output specs as low as 2-3 Amps on the market. This will not do. Please to use safe chemistry batteries with a 10A continuous discharge rating or better*. Use the calculators available to us to determine the amp draw of the coils you're building. ValHeli's example is a good one. Efest seems to generally make pretty good batteries. But their documentation is sparse and unreliable. And their ratings have been, at times, "hopeful". I would treat Efests just the way ValHeli does. They're fine; but don't test their limits. If you can't find certain/exact numbers on your battery (preferably from a number of references), stay away from the limits. The fuse will pop on a hard short; but it won't stop you from drawing 8Amps from a 4Amp battery. That's called "user error".

Pretty much any quality 18650 is going to fit without issue. (AWs, Pannies, Samsungs, Sonys, MNKE, and etc.)






*this comes down to how much surge the battery will experience on a hard short in the brief period before the fuse pops. If you want to use batteries with lower discharge ratings, you'll need to use a lower amp fuse.


Here's the specs.

http://www.littelfuse.com/products/...Blade-Fuses/Littelfuse_ATO_Ag_Blade_Fuses.pdf
 
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pdib

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Well, I just dropped an email to one of the stabilized wood distributors with whom I'd spoken before. If they agree to try and supply a little more product in the sizes we'll be wanting, I'll be sure to drop a link in here. There's stuff out there to be found; but it would be nice to have a "go-to guy/gal" with some variety ready to ship. We'll see.

ON ↑ THIS:

So, he's heard my plea, and he says he does include x 2" wide pieces. His process takes some time; but he'll be notifying me when batches are done (via his customer email list). He's suggested I post a link here when I get notifications from him, and we can rifle through his new materials before he posts them online. There are plenty of sources tho. Anyhoo . . . . .
 

X-Puppy

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ON ↑ THIS:

So, he's heard my plea, and he says he does include x 2" wide pieces. His process takes some time; but he'll be notifying me when batches are done (via his customer email list). He's suggested I post a link here when I get notifications from him, and we can rifle through his new materials before he posts them online. There are plenty of sources tho. Anyhoo . . . . .

You keep that up that sorta thing and you'll have to give up your day job! :)
 
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