DUD builds

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TBinAZ

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These work pretty well. They are pretty thick walled compared to a plastic syringe, but once installed doesn't look that bad. You will definitely need to use the included o-rings. Be sure to lightly press the o-rings into the grooves, and then lubricate with some juice before installing the tank glass. Also, and this is a pretty big also, before installing the tank take some 600 grit or smaller sandpaper and knock the sharp edges down just a bit both on the outside and inside. It takes only a minute to do. You will thank me later once you see why. ;-)

Thanks for the info Martinc. Just ordered one from IBTanked and we'll see how it fits.

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TBinAZ

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A beveled, or rounded, version of this Pyrex would look a bit better, but really needs to be polished clear again. Yes I agree, the larger o-rings are definitely needed. I was amazed at the difference. Nice positive seal all the way around. Happy I got these. Gives a clean view into the innards which won't cloud up or crack under normal use.

There is always a little variance in glass and the orings are so tiny on the DuD it doesnt leave a lot of room for error. If it does not work with the stock orings use the ones provided. You will have to tuck them into the groove as they are 14mm and the stock ones are 13mm but the little extra rubber gives enough material to fill the gap and make contact with the glass for the seal.

I have some special order incremental orings coming and may be changing them in the future if they are a better fit. Also thinking about doing a beveled tube for a more finished look if there is interest.
 

RedFox

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Do you have experience with the 30 awg kanthal, if so how does the vape compare to the 32 awg?

Other than the ohms change and it is a little thicker. You do the same process. Oxidize your mesh and wrap your coil. You would need to nearly double your wraps to achieve the same resistance coil as with 32 kanthal.

32 A-1 Kanthal = 1.2 ohms per inch
30 A-1 Kanthal = .7 ohms per inch
 

RedFox

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You should always target the wire gauge that let you cover as much area as possible (more wire=more vapor/flavor)

Correct. So it would also stand to reason that if you were to use 30 over 32 and you double your wraps you should also achieve more flavor and heat by covering more area of the mesh.
 

johnlacie

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Im asking because ive seen rip trippers, and r wechslers vids and they use really low ohm coils .7-1.3 in gennies to achieve really high wattages. What is the advantage of having a wattage that high

If you're using a non-VV/VW PV, the only way you can increase heating (power/wattage) is to decrease the coil resistance (low ohm). This should increase vapor production and throat hit but at the expense of your battery charge and life.
 
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Ron R

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If you loosen the positive nuts and remove them one at a time you can carefully un screw the positive pin from the bottom of the tank, this way you can leave the coil and wick in place, you can then take the tank apart by unscrewing it and take it apart, then just replace the clear tube and put it all back together being very carefull, you should be able to put the positive pole back through again, just replace the nuts one at a time, if your very careful the positive pin will go back through and connect with the coil again, then just tighten up everything again and vape away, this is the way I have been doing it because it is sometimes difficult to get the coil and wick to work properly again after taking it apart, I dont like to mess with this thing when it is working good already, I hope you understand what im talking about, but this method has been working great for me. Ron R
 

johnlacie

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If you loosen the positive nuts and remove them one at a time you can carefully un screw the positive pin from the bottom of the tank, this way you can leave the coil and wick in place, you can then take the tank apart by unscrewing it and take it apart, then just replace the clear tube and put it all back together being very carefull, you should be able to put the positive pole back through again, just replace the nuts one at a time, if your very careful the positive pin will go back through and connect with the coil again, then just tighten up everything again and vape away, this is the way I have been doing it because it is sometimes difficult to get the coil and wick to work properly again after taking it apart, I dont like to mess with this thing when it is working good already, I hope you understand what im talking about, but this method has been working great for me. Ron R

This. You could also use this technique as well for initially wrapping your coil around the wick. With the center post pushed down just enough, it would leave you room to freely wrap the heating wire without any obstruction.
 

Nurzrachit

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Do you have experience with the 30 awg kanthal, if so how does the vape compare to the 32 awg?

Should be great, only one way to find out. I use 30g Nichrome in several different builds, currently have on the DUD and makes lots of vapor. It is 1.8 ohm's and I believe 10 coils. The resistance of 30g Nichrome is less than 30g Kanthal, so you may have to check at 6-7 wraps or so. I have noticed too with the lower resistance wires they can handle more amperage without getting hot spots, or a burned taste. I also use a 28 guage Nichrome, but the wick on the DUD is not big enough to make that many coils. I use that on my DFW Ratank
 

BJ43

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Here is a Chid/DUD on the left with an original wick and coil actually wrapped in China, the first I got came prewrapped, it is 5 wraps (?g) and has been working fine for a couple weeks. On the right is a 70mm tight roll #500 and 10 wraps 28g. Both at 3.7V. If I raise the volts to 4.5 the original's wick can't keep up and starts to get harsh, at 4.5v the 28g really starts to produce monster vaper and the 500 wick never gets dry. Clic pic for video.
 
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Audionut02

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Ok, so having a few issues with this now after a week or so with it. I think I got really lucky on the first try. I started messing around a bit and since then haven't had the same experience. I keep getting hot spots and burning tastes. Im going through the supplied amount of wire that came with the kit and if it continues Im making a long drive this weekend.

I have wrapped 6 5 4 coils on the original wick. Done all the tricks I have read about. Using the drill method as "the wick", etc.. but keep having issues. I think I finally made a decent coil now with no hot spots but Im only reading 1.1 ohms at 4 wraps. Tastes good but not quite there Im thinking.

Im getting great vapor and a good TH and its not so much as a burning taste now but more of a true cig taste. Funny but now thats something Im trying to avoid. :D

Im contemplating drilling the air vent out slightly if this continues and still enjoy the chase for perfectness. This was more of an experience post than a question. Just kind of weird that Im at 4.0 with a 1.1 ohm to get a decent hit.
 

jralabate

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Ok, so having a few issues with this now after a week or so with it. I think I got really lucky on the first try. I started messing around a bit and since then haven't had the same experience. I keep getting hot spots and burning tastes. Im going through the supplied amount of wire that came with the kit and if it continues Im making a long drive this weekend.

I have wrapped 6 5 4 coils on the original wick. Done all the tricks I have read about. Using the drill method as "the wick", etc.. but keep having issues. I think I finally made a decent coil now with no hot spots but Im only reading 1.1 ohms at 4 wraps. Tastes good but not quite there Im thinking.

Im getting great vapor and a good TH and its not so much as a burning taste now but more of a true cig taste. Funny but now thats something Im trying to avoid. :D

Im contemplating drilling the air vent out slightly if this continues and still enjoy the chase for perfectness. This was more of an experience post than a question. Just kind of weird that Im at 4.0 with a 1.1 ohm to get a decent hit.

this is the best walkthrough how to tweak your coil and best thing it is ZEN~ doing it skip to 2:05 to see what i mean. And feel free to watch the whole thing.

http://www.youtube.com/watch?v=BacJzxyr0Nk

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