DNA modders' board project

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mamu

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mamu, maybe it's my poor english, but I don't understand how you connected two boards.
1. Did you use a single pot (contacts on both boards connected together) or doubled one, each resistor to each board?
2. According to voltages, you connected both to one power supply, but what about outputs? You just connected them in parallel? Plus to plus and minus to minus? Without shottky diodes? If so, is it documented somewhere? I mean, every board is a little different, so output voltages are also different. Is it possible to use them simply in parallel? Or you did a trick?

P.S. for me even 10-12 watts is too much, but my friend wants a power supply with approx 20 watts, but he is not so powerful in schematics :)

It's not documented how to do the dual boards. I watched Brandon's interview on VPLive and saw how he wired a dual setup then did mine the same. It is easy and simple to do and is a parallel setup - matching one pin on one board with the same pin on the other board. One board sits directly on top of the other board lined up pin-to-pin. I just created a solder bridge from the pin of one board to the same corresponding pin of the other board.

There's no doubling on parts. The same one trimmer that you use on the single board is also used for the dual setup. Once you've got the dual boards wired pin-to-pin it acts like one board, not two.

I just got the dual board in a mod and completed. Am vaping with it now at 16 Watts. nom nom nom :D

Will post pics in a bit.
 

mamu

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ok... got the mod with the dual boards done. I had bought a few Phidias from Fono a while back to convert to vv and hadn't gotten around to doing all the ones I bought so I used one for this dual boards dna project. I totally love Fono's handcrafted wood cases!

Before doing the final wiring I wanted to compare the watts meter reading with the amps/volts/ohms carto gadget I had made a while back. Once the wiring between the board's output and the atty connector is done there is no way to do anymore measurements with the watts meter. I was really happy with the results cuz the carto gadget measurements are really close to the watts meter's measurements.

Comparing amps between the watts meter reading and carto gadget reading...
dna-p1.jpg


Comparing voltage...
dna-p2.jpg


My pretty new vw mod... I had wanted to put the Watts control knob on top of the mod, but the batt contact on the inside prevented that...
dna-p3.jpg


Circuitry with dual DNA boards... yeah - there's a boatload of wiring in there :D ...
dna-p4.jpg


AND... tis a mighty fine vape!! :toast:

Next up is to get some cases to try out for the single board DNA project. I have a few different types of emergency mobile chargers coming in and hope to keep the USB charging/passthrough circuitry and have an internal batt. Will update when I get that project done.
 

Nomoreash

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Nice job Mamu, If you would let us know what kind of vape times your getting with it, it would be appreciated.

I'm doing one DNA and was thinking of putting going 18650s in parallel for extended run times based on the less than stellar time I'm getting with the Kick. If you're getting decent times running dual DNAs and a single 18650 I would love to go the one battery route.
 

mamu

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Really Pur-tee lookin' Looks good in wood. It's vaping time. I love your clean work area too.

TY breaktru!

The work area looks clean cuz I shoved everything back so it wouldn't clutter up the pic. :D

Nice job Mamu, If you would let us know what kind of vape times your getting with it, it would be appreciated.

I'm doing one DNA and was thinking of putting going 18650s in parallel for extended run times based on the less than stellar time I'm getting with the Kick. If you're getting decent times running dual DNAs and a single 18650 I would love to go the one battery route.

TY Nomoreash!

With a freshly charged batt and about 4 hours of vape time the volts of the batt right now is 3.75v. It'd be nice to get a full day with one batt, but I am running it at higher Watts so will see.

ETA: If your sweet spot is less than 12 Watts I think you'll really like vaping with the single DNA board. And it's especially nice that you need only one batt, but can use two if you want.

I'm really surprised, and happy, that I'm able to run 16 Watts aok with one batt on the dual board setup.
 
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mamu

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Awesome job Mamu....I love how you did the pot wheel.

One question.....Where iz yur kat? Always have the production mgr in the pics.

TY Para!

I had to ban Mandy from my modding work area. Crazy cat jumps on my modding table and starts batting the little parts around and swatting at me when I'm working. There's been a few times I had to spend some serious time looking for what she did with a part I need. LOLOLOL!!

Now that the mod is done and all the parts are safely inside the mod... I'll let her check it out. :D

mandy-phidias.jpg
 

mamu

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For my next DNA project, I decided to think outside the *box*. Ya'll like it??

dna-sb1.jpg


I keed I keed. :D

For this DNA project I wanted a case that I could mod and also keep the USB charging/passthrough circuitry. Credits and thanks to dedmonwakin for finding this case and sharing his Fist Pack project with this case and to Nuck for sharing his build of the Fistpack which I transferred some of the knowledge learned with modding this case, especially the slide switch setup, to this DNA build.

I used a 5-position slide switch to deliver 5 preselected Watts levels - 8, 9, 10, 11, and max Watts. The last measurement I did before the final wiring the max Watts was 11.1. So the 11 Watts setting and max Watts setting are essentially the same. The max Watts may change to higher as it seems to fluctuate a bit. Just not sure yet if this board is really capable of delivering much more than 11 Watts.

I set the board to the deliver max Watts it is capable of when the position of the slide switch actuator is all the way up (toward the top of the mod). I did this by putting a jumper across pins 7 and 8 on the DNA board with pin 9 on the board wired to common grnd on the slide switch.

For the 8, 9, 10, and 11 Watts settings, I used resistors on each pin of the slide switch wired inline with pin 8 of the DNA board. Pin 9 was used to wire the common grnd on the slide switch.

I wasn't sure if all the DNA circuitry, wiring, slide switch, resisters, etc would fit in this tiny case, but it did and it's really packed!! Not an unch of space left over. LOLOL!!

I used an 18650 AW IMR 2000mAh batt for this build.

dna-sb2.jpg


dna-sb3.jpg


dna-sb4.jpg


dna-sb5.jpg


Size comparison with Merlin...
dna-sb6.jpg


dna-sb7.jpg
 
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mamu

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