Just For LM2596 Users

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WillyB

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Well I'm gonna bite the bullet and try this. After reading this thread (twice, lol), I found some scrap Cedar planks and I'm gonna make my own box mod. It might be UGLY but If it works, then I'll find a nice peice of wood and move everything over, lol.
Why does it have to be ugly? Some of the prettiest woodies I've seen are just common cedar.

Some of Para's work.

cedar1.jpg



Wonder what's inside?

cedar3.jpg


Just takes a little elbow grease. :)
 

meatsneakers

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Great work everyone.

I've got plenty of personal mods using the OKR - copper mods, wood mods, pass-throughs etc etc. The OKR is cheap for what it does but I'd like to start building pass-throughs for my friends which have started using e-cigs (10 and counting :D ). The OKR is too expensive to use in this scenario. The issue is that nearly all of them use DCs. How strict is the 10w/3a limit I see on these listings? WillyB, I noticed that you tested them to max out at 2.5a earlier in the thread - was this your batteries or is that the absolute max regardless of supply?
 

Quigsworth

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I know there's some disbelief on this but I've pushed the one on my PT past 3.5A on a steady 5 second vape, it's powered off a 12v XBox PSU, I cleaned off the protective varnish, sweated a 1 cm x 1cm piece of copper sheet to the underside of the reg with paste solder, lapped it then thermal compounded it to an old ATI video card fan cooled heat sink...I can't help it, my old OC'ing days shining through I guess:facepalm:
 

SammyT

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Well I'm gonna bite the bullet and try this. After reading this thread (twice, lol), I found some scrap Cedar planks and I'm gonna make my own box mod. It might be UGLY but If it works, then I'll find a nice peice of wood and move everything over, lol. You guys ( and gals ) are awsome sharing you knowledge with all of us.

Hey fox, tear those planks up! Careful, modding is more addicting than vaping.:D
I am planning on making one brick of a pipe. Black walnut, with dual 18650s and lm2596. I probably won't have it done for a month, my life gets in the way of my modding :glare:


-Sam
 

meatsneakers

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Here's a pick of the LM2596 running a 1 ohm dual coil set up on my Ody at 6.3V just to see how beyond spec this module would go before popping, completely silly, completely un-vapable but...and I'm still using it.

View attachment 92653

lol that's what I like to see - unsafe and ridiculous :thumbs:

Looks like I'll be ordering 10.

edit-

Was just thinking of how ubiquitous these modules would be if the size could be reduced. Minus a slight loss of efficiency compared to the other, more expensive switching regs, for $2 it's tough to pass these up.
 
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Quigsworth

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lol that's what I like to see - unsafe and ridiculous :thumbs:

Looks like I'll be ordering 10.

Don't put me in front of a big red button that says "do not press":p Like you plan, I've just used these for PT's for myself and buddies, I'm an OKR fanboy in vv mods but for PT's, these just don't get any better, simple to hook up, tough as nails, probably inefficient as hell but on a PSU who cares?...about my only complaint is the trimmer, they can be jumpy and that stupid tiny adjustment screw is a PITA, also, of the 10 or so I've used I had one that saw 3A from a bad GTUS coil, it thermal tripped and never came back to life but at +/- $2 ea. meh
 

Quigsworth

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Was just thinking of how ubiquitous these modules would be if the size could be reduced. Minus a slight loss of efficiency compared to the other, more expensive switching regs, for $2 it's tough to pass these up.

And if they changed it so pin 5 was grounded with a removable jumper making remote tact switching easier...that's why I love the OKR's, I don't know about anyone else but I have mods where the components are scattered all over the place in the mod in the spirit of spacial maximization :)
 

BJ43

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And if they changed it so pin 5 was grounded with a removable jumper making remote tact switching easier...that's why I love the OKR's, I don't know about anyone else but I have mods where the components are scattered all over the place in the mod in the spirit of spacial maximization :)

Got to get around to cutting the 5 pin on one and trying. Have some NC tack switches coming in.
 

BJ43

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Aaah...I keep trying to apply OKR logic to this chip...with the OKR's if you put a 10k from pin 5 to ground (a drain) it's off till you put Vin to it with a NO sw which turns it "on"...these LM2596's are essentially opposite in nature...I just checked the data sheet of the LM2596...pin 5 has a 1.4v threshold, anything below that (or if pin 5 is just left open) then the reg is "on" (same as the OKR's but that's where they split)...with the LM2596's if you put up to Vin to pin 5 (over 1.4v) then it shuts "off" which is why you need the NC...for me (and this is my "electrician self" talking) I'm not a real big fan of controlling things with NC switches...I've found over the last 20yrs or so that when switches fail (and they all eventually do :() they'll typically fail in the "open" state...not good if you're controlling a 2596
A few months ago we looked at this:

scaled.jpg
 

Quigsworth

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That's just it, pin 5 is by default hardwired to ground so that it works all the time...by lifting the pin and inserting a NC tact in wouldn't you just be breaking one connection and replacing it with another with an NC switch?:confused:

Edit: OK BJ, we have to stop clicking "submit" simultaneously:laugh:...ok that drawing you have makes sense, the reg is held off by the threshold v, close the cct to ground with the tact and it fires...I think that's a Jhonutz drawing right?

When I posted that comment, I hadn't metered out pin 5 yet and realized it was by default hardwired to ground...I thought that maybe it was just left open a la OKR :facepalm:
 
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BJ43

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BJ43

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That's just it, pin 5 is by default hardwired to ground so that it works all the time...by lifting the pin and inserting a NC tact in wouldn't you just be breaking one connection and replacing it with another with an NC switch?:confused:

Edit: OK BJ, we have to stop clicking "submit" simultaneously:laugh:...ok that drawing you have makes sense, the reg is held off by the threshold v, close the cct to ground with the tact and it fires...I think that's a Jhonutz drawing right?

When I posted that comment, I hadn't metered out pin 5 yet and realized it was by default hardwired to ground...I thought that maybe it was just left open a la OKR :facepalm:

yes on Jhonutz
 
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