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C4ppucino

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Hiya. I don't know if this is the right sub-forum to post this, but it seems the right one.

So I got a Kanger subtank and a Kbox. The Kbox is good for mobile vaping, but I'm looking for a solution for home, AC powered vaping. I spend my time mostly in my office, so I feel that rotating batteries is kinda redundant (considering there are AC plugs next to me).

So I'm thinking of building an AC powered setup that can fire a sub-ohm (0.5ohms). My questions are:

- What's the rating of voltage and current that can fire a 0.5ohms coil normally? I don't need a lot of smoke. On my Kbox, I'm happy in between 8-20W. Let's just take the middle ground, 15W. I need to know the voltage and current rating needed, to find the right PSU. Will a 5V PSU work?

- I'm a little sketchy on ohm's law implementation on this project. In the PSU part, say I want a 15W output. A 5V would need 3A of current, and a 10V would need 1.5A of current. So the higher the voltage, the lower the current needed, for the same wattage. Now in the OCC part, 5V and 0.5ohms would need 10A, and 10V would need 20A. So in the OCC part, the higher the voltage, the higher the current needed. Which one should I follow? Logic says I should go with the OCC, so I'd need a 5V 10A PSU or a 10V 20A PSU (and so on). Or did I get it wrong?

- On my sketchboard (in my mind), I'd need the PSU, a 510 connector, a push button, and an enclosure. What else do I need? Do I need some kind of protection? A resistor or fuse?

- I'm happy with a working, single rating system, but let's just say I want to make it a VV system. I'd need a potentiometer and a voltage meter, right? What rating of the PSU should I use if I want to go VV?

Thank you in advance.
 

UncleRJ

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I gotta ask,

Why go through all of the hard work and expense to research how to build a mod like the one you are describing when you can just purchase a nice factory built variable wattage device that will function as a passthrough and you can plug the sucker into your PC or AC socket via a wall wart or even your car with an adapter?
 

kwtony

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BINGO!!!!!

i wouldnt expect to sub omh with this tho :)

Screen%20shot%202015-05-31%20at%2010.27.26%20AM_zpss4g2lsqu.png
 

pulsevape

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Pass throughs have been around for a long time and they had a brief popularity, but they never really took off among vapers. I suppose people found them akward to use.
 

C4ppucino

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I gotta ask,

Why go through all of the hard work and expense to research how to build a mod like the one you are describing when you can just purchase a nice factory built variable wattage device that will function as a passthrough and you can plug the sucker into your PC or AC socket via a wall wart or even your car with an adapter?

Well, first, because I already got the Kbox. While it doesn't have a passthrough, I do love it for the looks and simplicity. Buying another VW just to get the passthrough is a bit redundant, at least IMO. Also, say I got one VW that got a passthrough, I don't think it's a 'real' passthrough when plugged with a sub-ohm tank. My logic is the sub-ohm will draw more current than what a PC USB, or maybe a USB wall charger can give out. So in reality it's drawing current from the battery, and the passthrough will (slowly) recharge the battery in the meanwhile. That's just my logic tho, I don't know if it's true or not.

The biggest current rating USB wall charger I could find is only around 2-3A, which I'm not sure if it's enough to power a sub-ohm. I'm using one of those tiny USB VV passthrough now, with 1.2ohm OCC, plugged to an Ipad charger (2A), and it's slow as a turtle to heat up. I gotta parallel a few wall chargers via a USB hub now, just to get a decent heat and smoke. I imagine I'd need a whole lot more chargers if I want to use a 0.5ohm OCC with the way I'm doing it now.

So, weighing on the options, the best I could think of, in term of availability, price, and long run benefit, is to build a custom AC powered mech mod. In my country, something like a 5V 6A PSU is priced about the same as a good USB wall charger with 2-3A rating anyway.

Plus, I love to DIY stuffs....:p
 

C4ppucino

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BINGO!!!!!

i wouldnt expect to sub omh with this tho :)

Screen%20shot%202015-05-31%20at%2010.27.26%20AM_zpss4g2lsqu.png

That's exactly what I got right now. It won't go below 1.2 ohms. Tried with 0.5 ohms, and it's just blinking and screaming in agony. With 1.2 ohms, plugged to an Ipad 2A charger, it's slow as a turtle to heat up, with minimal smoke.

I might be able to use it, if I wire it to a PSU that's 5V, but I don't know how many ampere the 0.5ohms need. The highest voltage setting of this thing is 4.8V, so 4.8 divided with 0.5 should be 9.6A. So a 5V 10A PSU will do the trick?
 
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Kent B Marshall

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.5 at 20 watts = 6.32455532 amps. This will still be a slow ramp up.
You may need to raise your resistance.
http://www.rapidtables.com/calc/electric/power-calculator.htm

You can build a dc mod from an OKR-T10 and ELIMINATE the batteries and use a 2.2/2.5 dc power jack.
http://comingsoon.radioshack.com/size-n-coaxial-dc-power-jack-w-switch/2741583.html#.VWsoV89VhHw
https://www.e-cigarette-forum.com/forum/threads/easy-okr-t-vv-mod.191607/
and use something like this
http://www.12vadapters.com/adapter/power-supply/12v/6-amp-6a.html
Be sure to match your power supply barrel to your jack.

I've been using mine for several years. at 1.0 ohms at 20 watts without any problems.
You can this for a car car

Hope you find what your needing
 

C4ppucino

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.5 at 20 watts = 6.32455532 amps. This will still be a slow ramp up.
You may need to raise your resistance.
http://www.rapidtables.com/calc/electric/power-calculator.htm

You can build a dc mod from an OKR-T10 and ELIMINATE the batteries and use a 2.2/2.5 dc power jack.
http://comingsoon.radioshack.com/size-n-coaxial-dc-power-jack-w-switch/2741583.html#.VWsoV89VhHw
https://www.e-cigarette-forum.com/forum/threads/easy-okr-t-vv-mod.191607/
and use something like this
http://www.12vadapters.com/adapter/power-supply/12v/6-amp-6a.html
Be sure to match your power supply barrel to your jack.

I've been using mine for several years. at 1.0 ohms at 20 watts without any problems.
You can this for a car car

Hope you find what your needing

Hi, thanks for the links.

TBH, I didn't fully understand the link about the OKR mod. What's the OKR function? Is it as a replacement to potentiometer?

Also, I got this idea of using the USB VV passthrough (the ebay picture above). If, for instance, I get a 5V 10A PSU, like this one: http://www.dx.com/p/50w-5v-10a-led-switching-power-supply-adapter-280077#.VWs6m0d_iXw and wire it to a USB female jack, then plug the passthrough to it, will it then be able to fire a 0.5 ohms?
 

Zamazam

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The OKR is a rectifier board, it increases the voltage from a source (battery). The potentiometer regulates how much voltage the OKR board puts out, it's a separate electronic component that soldiers to connection points on the OKR board.
 

Kent B Marshall

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Hi, thanks for the links.

TBH, I didn't fully understand the link about the OKR mod. What's the OKR function? Is it as a replacement to potentiometer?

Also, I got this idea of using the USB VV passthrough (the ebay picture above). If, for instance, I get a 5V 10A PSU, like this one: http://www.dx.com/p/50w-5v-10a-led-switching-power-supply-adapter-280077#.VWs6m0d_iXw and wire it to a USB female jack, then plug the passthrough to it, will it then be able to fire a 0.5 ohms?

Okr t10 will provide variable voltage up to 6.0 volt at 10 amps . Pot allows for this a voltage adjustment which is programmed into the chip. Input to the OKR can be up to 14 volts dc with supply voltage appr 1.5 volt to 2.0 volts above demand voltage. Example 5 volt needs at less 7 volt supply up to 14 volts

That USB 5volt is set to a 5 volts supply, if that 5 volts is your only demand - great.
If you going to reduce that voltage remember to included the amperage that need to be handled by the reducing device.
 

Sully

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I spoke to someone at a vape meet about a year ago who claimed to have adapted a desktop computer power supply into a vape power supply. Those things can put out some serious wattage / voltage! No sure of the details, but I'm certain with the right know-how this is a viable option. If nothing else, something to look into...
 

pulsevape

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I spoke to someone at a vape meet about a year ago who claimed to have adapted a desktop computer power supply into a vape power supply. Those things can put out some serious wattage / voltage! No sure of the details, but I'm certain with the right know-how this is a viable option. If nothing else, something to look into...
is your avatar a stripped bass.
 

C4ppucino

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Thanks for the reply.

The OKR is a rectifier board, it increases the voltage from a source (battery). The potentiometer regulates how much voltage the OKR board puts out, it's a separate electronic component that soldiers to connection points on the OKR board.

I see, so it's similar to a step up step down coil transformer (I'm more familiar with this)

Okr t10 will provide variable voltage up to 6.0 volt at 10 amps . Pot allows for this a voltage adjustment which is programmed into the chip. Input to the OKR can be up to 14 volts dc with supply voltage appr 1.5 volt to 2.0 volts above demand voltage. Example 5 volt needs at less 7 volt supply up to 14 volts

That USB 5volt is set to a 5 volts supply, if that 5 volts is your only demand - great.
If you going to reduce that voltage remember to included the amperage that need to be handled by the reducing device.

I see now. I'm not very familiar with that OKR chip.

Yes, if I'm gonna use the USB VV, I think I gotta supply it with 5V. Just gotta find a 5V PSU that can supply the correct amount of current.

Okay back to basic. Say I want to build this thing from scratch. So to correctly fire a 0.5 coil, which one is preferred, high voltage (something like 10-12V) or low voltage (3-5V)? Which one is more beneficial and/or efficient? Using that power calculator, the lower the voltage input to a 0.5 ohms, the lower the current need to be. So is it better to use a 5V PSU than a 12V PSU?

I spoke to someone at a vape meet about a year ago who claimed to have adapted a desktop computer power supply into a vape power supply. Those things can put out some serious wattage / voltage! No sure of the details, but I'm certain with the right know-how this is a viable option. If nothing else, something to look into...

That idea has crossed my mind, especially since a PC PSU already got the convenience of 3V, 5V, and 12V output. Without adding anything, I already got 3 voltage options (can be wired simply with a 3-way switch). Problem is, whenever that PSU is switched on, it will constantly draw a few hundred watts from the main power line. I know the price of power is low nowadays, but still, it's a bit overkill to use a few hundred of watts just for vaping, isn't it?
 

Sully

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That idea has crossed my mind, especially since a PC PSU already got the convenience of 3V, 5V, and 12V output. Without adding anything, I already got 3 voltage options (can be wired simply with a 3-way switch). Problem is, whenever that PSU is switched on, it will constantly draw a few hundred watts from the main power line. I know the price of power is low nowadays, but still, it's a bit overkill to use a few hundred of watts just for vaping, isn't it?
Yeah, might be a bit of a waste. You could get a little 100w one like this tho...100 watts isn't that crazy when it comes to vaping. :)

http://www.etechnext.com/680xr-dell...eMWuwa23IBk5dFOhUaJoYc22QwN0xcNSo8aAruY8P8HAQ
 

C4ppucino

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Yeah, might be a bit of a waste. You could get a little 100w one like this tho...100 watts isn't that crazy when it comes to vaping. :)

http://www.etechnext.com/680xr-dell...eMWuwa23IBk5dFOhUaJoYc22QwN0xcNSo8aAruY8P8HAQ

Yes, but as I don't have it (I only have used PSUs from old PCs), then I have to buy it. If I gotta buy something anyway, I figured it's a better option to get the correct rating PSU that I'd need. Which is what I asked from the beginning, which PSU (what volt, what ampere) would I need to fire 0.5 coil normally.
 

Kent B Marshall

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Okay back to basic. Say I want to build this thing from scratch. So to correctly fire a 0.5 coil, which one is preferred, high voltage (something like 10-12V) or low voltage (3-5V)? Which one is more beneficial and/or efficient? Using that power calculator, the lower the voltage input to a 0.5 ohms, the lower the current need to be. So is it better to use a 5V PSU than a 12V PSU?
[/QUOTE]

Not sure I understand the question
5 Volts is to close with no head room.
If you desire over 30 watts OKR won't work.

OKR T10 has a 10 amp, 30 watt limit
0.5 coil at 20 watts requires 3.16 volts = 3.16 volts divided by 0.5 coil = 6.32 amps
0.5 at 25 watts requires 3.53 volts = 3.53 volts divided by 0.5 coil = 7 amps
.5 coil at 30 watts requires 3.87 volts = 3.87 divided by 0.5 coil = 7.7 amps
 
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C4ppucino

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Okay back to basic. Say I want to build this thing from scratch. So to correctly fire a 0.5 coil, which one is preferred, high voltage (something like 10-12V) or low voltage (3-5V)? Which one is more beneficial and/or efficient? Using that power calculator, the lower the voltage input to a 0.5 ohms, the lower the current need to be. So is it better to use a 5V PSU than a 12V PSU?

Not sure I understand the question
5 Volts is to close with no head room.
If you desire over 30 watts OKR won't work.

OKR T10 has a 10 amp, 30 watt limit
0.5 coil at 20 watts requires 3.16 volts = 3.16 volts divided by 0.5 coil = 6.32 amps
0.5 at 25 watts requires 3.53 volts = 3.53 volts divided by 0.5 coil = 7 amps
.5 coil at 30 watts requires 3.87 volts = 3.87 divided by 0.5 coil = 7.7 amps[/QUOTE]

What's the OKR for and why do I need one? From the post above, the OKR is used for stepping up the voltage from the batteries, right? Something like stepping up the 4.2V voltage of a 18650 to 6V? Now, can't I just get something like a 10V PSU, and then step it down with a potentiometer? Or if it's somewhere below 4V, then can't I get a 5V PSU, put a potentiometer in between, and wire the polarities straight to a 510 connector?
 

Kent B Marshall

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Not sure I understand the question
5 Volts is to close with no head room.
If you desire over 30 watts OKR won't work.

OKR T10 has a 10 amp, 30 watt limit
0.5 coil at 20 watts requires 3.16 volts = 3.16 volts divided by 0.5 coil = 6.32 amps
0.5 at 25 watts requires 3.53 volts = 3.53 volts divided by 0.5 coil = 7 amps
.5 coil at 30 watts requires 3.87 volts = 3.87 divided by 0.5 coil = 7.7 amps

What's the OKR for and why do I need one? From the post above, the OKR is used for stepping up the voltage from the batteries, right? Something like stepping up the 4.2V voltage of a 18650 to 6V? Now, can't I just get something like a 10V PSU, and then step it down with a potentiometer? Or if it's somewhere below 4V, then can't I get a 5V PSU, put a potentiometer in between, and wire the polarities straight to a 510 connector?[/QUOTE]

Yes
If you can find one that will handle the amperage load
 

Sully

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I'll PM so we don't derail the thread. :)
 

Maverik_X

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Hiya. I don't know if this is the right sub-forum to post this, but it seems the right one.

So I got a Kanger subtank and a Kbox. The Kbox is good for mobile vaping, but I'm looking for a solution for home, AC powered vaping. I spend my time mostly in my office, so I feel that rotating batteries is kinda redundant (considering there are AC plugs next to me).

So I'm thinking of building an AC powered setup that can fire a sub-ohm (0.5ohms). My questions are:

- What's the rating of voltage and current that can fire a 0.5ohms coil normally? I don't need a lot of smoke. On my Kbox, I'm happy in between 8-20W. Let's just take the middle ground, 15W. I need to know the voltage and current rating needed, to find the right PSU. Will a 5V PSU work?

- I'm a little sketchy on ohm's law implementation on this project. In the PSU part, say I want a 15W output. A 5V would need 3A of current, and a 10V would need 1.5A of current. So the higher the voltage, the lower the current needed, for the same wattage. Now in the OCC part, 5V and 0.5ohms would need 10A, and 10V would need 20A. So in the OCC part, the higher the voltage, the higher the current needed. Which one should I follow? Logic says I should go with the OCC, so I'd need a 5V 10A PSU or a 10V 20A PSU (and so on). Or did I get it wrong?

- On my sketchboard (in my mind), I'd need the PSU, a 510 connector, a push button, and an enclosure. What else do I need? Do I need some kind of protection? A resistor or fuse?

- I'm happy with a working, single rating system, but let's just say I want to make it a VV system. I'd need a potentiometer and a voltage meter, right? What rating of the PSU should I use if I want to go VV?

Thank you in advance.

Very odd request but aye I would just modify a toaster problem soved.
This comes to mind with this thread ,but hey if it's what tickles your fancy then by all means....

 
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BoomStick

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I've had a similar idea. What I would like to do is build two devices. The first would be a box mod that uses a 120w GE naos raptor dc-dc convertor chip that runs on two 18650's. The other device would be a plug into the wall power supply you could plug into the box mod to supply it with the dc voltage the raptor chip needs to operate. Then you have a nice box that you can run off batteries or the wall.
 
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