Introducing Futura - The Modular DNA 20 APV by NexgenVapor[ISSUE]

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LeftCoastVaper

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Jon, you could solve this by being even more revolutionary (and you can take all the credit for this). Turn the rocker switch into a small hinge at it's pivot point so that you can depress both power adjustment buttons at the same time. I know this would be very possible to do, it would require a little bit of a design change to the rocker assembly but there is no reason why it wouldn't fit into the current mold so to speak. If I had any CAD skill I'd even plot it all out for you.

Taken under advisement... :)
 

LeftCoastVaper

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question about futura/dna20 and batteries:

i load a freshly charged battery in the futura. charger read 4.2v
after a day of use, the futura says check battery and doesn't fire.
i take the battery back to the charger, it reads 3.6 or 3.7v and starts to charge.

shouldn't be something closer to 3.3v if it's indeed time for a recharge?

The dna board responds to current capacity as well as voltage. If the battery doesn't have adequate power reserves the "check battery" notice will come up.
 

Griff.J

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Taken under advisement... :)

hinge.jpg

Obviously it's not the exact rocker shape, I wouldn't take my Futura apart and risk breaking it but this is what I'm thinking. A hinge with a stop along it's back, so that the ends of the switch don't swing outward, it would basically still work just like your current rocker but with the ability to bend at it's pivot allowing you to push down both sides of the rocker at the same time.
 

nelsonm64

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View attachment 297308

Obviously it's not the exact rocker shape, I wouldn't take my Futura apart and risk breaking it but this is what I'm thinking. A hinge with a stop along it's back, so that the ends of the switch don't swing outward, it would basically still work just like your current rocker but with the ability to bend at it's pivot allowing you to push down both sides of the rocker at the same time.

nice design you have there, I like it!
 

mokhann

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View attachment 297308

Obviously it's not the exact rocker shape, I wouldn't take my Futura apart and risk breaking it but this is what I'm thinking. A hinge with a stop along it's back, so that the ends of the switch don't swing outward, it would basically still work just like your current rocker but with the ability to bend at it's pivot allowing you to push down both sides of the rocker at the same time.

What if the rocker design stayed the same, but a more pliable material was used instead?
 

SonHouse

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There are infinite ways to implement it, and we've thought of most of them. However, for the moment it will have to stay as is.

Good, not sure I want to be the guinea pig on a change here... :D Oh wait, I ordered a dna 30, Nevermind...
 
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LeftCoastVaper

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Ok, just a quick note on the DNA 30 - Evolv is a little backed up on production right now, so we're about two weeks out from receiving our order. All units that haven't yet been built will be equipped with this board, but those that are already on the way have the 20. Remember, these are essentially the same electronics, with the obvious difference in power output. The vaping experience, however, should be the same, although I cant speak from personal experience yet.

Another thing: if you really build 0.5 ohm coils, more power to you (pun intended), but you'll experience horrendous battery life at higher wattages. According to Mr. Ohm and his irritating law, a 0.5 ohm coil @ 15 watts draws 5.48 amps. At 30 watts, 7.75 amps. Wow! That's crazy. And the sad thing is, there's no need to do this, 'cause watts are watts, regardless of coil resistance. The Futura is not a mech mod, so why treat it like one? Just wondering...
 

CABBA

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Just to throw some more clarification on the Voltage, Power, Ohms, efficiency conversation. I contacted Evolv, and Brandon was gracious enough enlighten me, here is what he had to say:


With regards to battery consumption, atty resistance and power setting:
the amount of power consumed is directly proportional to the wattage output. For example, if your DNA30D is set to 10W (regardless of atty resistance) it will require 10W + 6% (efficiency losses) or 10.6W from your battery. So if your battery's under load voltage is 3.2V, the DNA30 will require 3.31A to achieve 10W at the atomizer. [3.2V*3.31A=10.6W]

With regards to the efficiency variation:
The conversion efficiency will vary throughout the wattage range but only trivially.

With regards to whether the DNA can step down voltage:
No, but there is a small amount of voltage drop across the circuit.

So there we have it. Coil resistance will not affect battery life. Power setting is the critical factor. Only a slight variation of efficiency with power. No active way to step down voltage.


Thanks to Brandon from Evolve for Evolv-ing my vaping experience.
 

jnnfrlsw

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Just to give an update on my battery life. I was hoping my fast battery drain was due to my batteries being over a year old. I got my brand new AW IMR 18650/ 2000 mAh batteries in yesterday. It lasted just under 6 hours. That's vaping using a plain single coil carto at 8.5-9w. Overall it's pretty depressing. I sincerely hope for new customers sake that all the devices problems are solved.
 

Hoosier

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Just to give an update on my battery life. I was hoping my fast battery drain was due to my batteries being over a year old. I got my brand new AW IMR 18650/ 2000 mAh batteries in yesterday. It lasted just under 6 hours. That's vaping using a plain single coil carto at 8.5-9w. Overall it's pretty depressing. I sincerely hope for new customers sake that all the devices problems are solved.

It could be the lower C rating on the 2000mAh AW IMR's compared to the higher C rating of the 1600mAh AW IMR's...If the battery is sagging (voltage drop due to current pull) then the DNA20 will show the battery being low. You'd have to check the non-loaded voltage of the battery after the DNA20 says it needs recharged to know for sure, but it's a good possibility.

And how have you been doing? Been awhile since we've communicated jnnfrlsw.
 

Griff.J

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Actually I just had a brain fart. If you changed the rocker pivot from a circle to an oval with round shaft in it, you could push down both sides of the rocker without even having to go as far as to making a hinge. The DNA's power adjust buttons is what holds the rocker switch in it's idle position so this wouldn't cause the rocker to be loose, the buttons would still hold the rocker up against upper part of oval and flush. but you'd be able to push down both sides of the rocker to depress both power adjust buttons.

notch.jpg
 
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jnnfrlsw

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It could be the lower C rating on the 2000mAh AW IMR's compared to the higher C rating of the 1600mAh AW IMR's...If the battery is sagging (voltage drop due to current pull) then the DNA20 will show the battery being low. You'd have to check the non-loaded voltage of the battery after the DNA20 says it needs recharged to know for sure, but it's a good possibility.

And how have you been doing? Been awhile since we've communicated jnnfrlsw.

I have always ordered my the red AW IMRs from provape but they don't list the C rating. They have always lasted the full day in my non dna20 devices. I have been changing the battery out as soon as my battery indicator shows empty. I wasn't aware that the dna20 may still have power left. I will for sure try using it till the device actually stops firing. Hopefully that will be the trick. Which battery do you suggest that has a higher C rating that may work better with the dna20? And how do you find out what the c rating on a battery even is?

I am doing pretty good. With our crazy Indiana weather I have been a hermit all winter. I am anxious for Spring so we can all catch up at the upcoming Hoosier Vape meets. Looking forward to a bottle of your famous white peach juice:)
 

Hoosier

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I have always ordered my the red AW IMRs from provape but they don't list the C rating. They have always lasted the full day in my non dna20 devices. I have been changing the battery out as soon as my battery indicator shows empty. I wasn't aware that the dna20 may still have power left. I will for sure try using it till the device actually stops firing. Hopefully that will be the trick. Which battery do you suggest that has a higher C rating that may work better with the dna20? And how do you find out what the c rating on a battery even is?

I am doing pretty good. With our crazy Indiana weather I have been a hermit all winter. I am anxious for Spring so we can all catch up at the upcoming Hoosier Vape meets. Looking forward to a bottle of your famous white peach juice:)

I bought some 2000mAh's to replace my 1600mAh AW IMR's because one of my older batteries was not holding a charge as well, so I figured I'd just get a whole set. I noticed the 2000mAh ones did not last as long as my 1600's. (This seems magnified on the DNA20) So I had to go looking for some usage tests. The 1600mAh outputs a greater amount of current, for the same voltage drop, than the 2000mAh. (From the test's graphs I saw.)

When I get a few spare bucks, I plan on getting a fresh set of the 1600's and giving away my 2000's. (And, AW does not publish the C ratings anywhere that I can find, which I find more than annoying.)

Be sure to let me know when you're coming to a meet and I'll try to make sure I have a bottle of White Peach just for you.
 

ronpaek100

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Just to throw some more clarification on the Voltage, Power, Ohms, efficiency conversation. I contacted Evolv, and Brandon was gracious enough enlighten me, here is what he had to say:


With regards to battery consumption, atty resistance and power setting:
the amount of power consumed is directly proportional to the wattage output. For example, if your DNA30D is set to 10W (regardless of atty resistance) it will require 10W + 6% (efficiency losses) or 10.6W from your battery. So if your battery's under load voltage is 3.2V, the DNA30 will require 3.31A to achieve 10W at the atomizer. [3.2V*3.31A=10.6W]

With regards to the efficiency variation:
The conversion efficiency will vary throughout the wattage range but only trivially.

With regards to whether the DNA can step down voltage:
No, but there is a small amount of voltage drop across the circuit.

So there we have it. Coil resistance will not affect battery life. Power setting is the critical factor. Only a slight variation of efficiency with power. No active way to step down voltage.


Thanks to Brandon from Evolve for Evolv-ing my vaping experience.

Which battery do you think would be better to run with the new DNA30, do you think you could ask brandon? ortronic sx22, sony vtc4 or the new efest 18650 35A?
 

SonHouse

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Another thing: if you really build 0.5 ohm coils, more power to you (pun intended), but you'll experience horrendous battery life at higher wattages. According to Mr. Ohm and his irritating law, a 0.5 ohm coil @ 15 watts draws 5.48 amps. At 30 watts, 7.75 amps. Wow! That's crazy. And the sad thing is, there's no need to do this, 'cause watts are watts, regardless of coil resistance. The Futura is not a mech mod, so why treat it like one? Just wondering...
That's actually why you have my order. Certainly it would be convenient to swap toppers with my mechs which will have lower resistances but I like to heat more wire if I can and that's what makes the DNA20/30 unique.
 
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