i can rebuild a protank/ but after a couple of days replacing with a new one

[Vapingmonkey]

I always use microcoils .20 kanthal 6 wraps round a precision screwdriver @2.4 ohms with a cotton wick slided in once seated on the atty. Get a week or 2 good use

 

[defu]

Micro coils are still likely to burn the grommet sooner or later. I'd never coil an evod or any BCC clearo without nr-r-nr these days. Micro coils are overrated anyway. The vape is just as good on a standard nr-r-nr coil with cotton. This way you can change out the cotton every 3 days and do a dry burn without fear of the rubbery burn! In any case, you can't expect a superb vape from a cheap BCC, although you can get a satisfactory one and micro coils don't change a damn thing. IMHO of course

 

[Stemk]

Good to know folks. My vivi nova rebuilds are working out okay, been in a week and still going strong.

 

[thomaswebb]

What do you use to do your vivi nova rebuilds? Do you do micros in in as well?

I've got a protank2 and mini protank2. It can be so frustrating rebuilding those things! Are there any good replacements for the rubber gromets, or has anyone tried cutting it shorter?

 

[Vapingmonkey]

Micro coils are still likely to burn the grommet sooner or later. I'd never coil an evod or any BCC clearo without nr-r-nr these days. Micro coils are overrated anyway. The vape is just as good on a standard nr-r-nr coil with cotton. This way you can change out the cotton every 3 days and do a dry burn without fear of the rubbery burn! In any case, you can't expect a superb vape from a cheap BCC, although you can get a satisfactory one and micro coils don't change a damn thing. IMHO of course

Gonna have to disagree sorry. Ok micro coils are a bit overrated but the fit great in a protank so why not use them. The burning rubber only comes from 2 things in a protank. Running on too high a voltage for your coil, and dry burning. Both cause the coil to get too hot and burn the grommet imho and after alot of research and burnt grommets. Don't get any now

 

[sparkyjuice]

I would suggest buying a RBA (kayfun/clone) I'm a noob (but an electrical engineer) and in 2 weeks have already rebuilt mine 4 times for different flavour/heat.
Very easy specially with ekowool wick.

 

[pabs]

Regarding grommets and protanks, I wondered if I doubled over the leg portions of a coil and twisted them would this lower the chance of the grommets being heated? I can't quite decide in my head and haven't tried it yet, but I figure in theory that the legs would be a larger width in a sense and would take longer to heat up than the coil turns, but then they would be lower resistance than the coil and can't work out if this would be a good thing or a bad thing as the whole coil will have a given resistance. Any thoughts or am I being dumb?

 

[Vapingmonkey]

Regarding grommets and protanks, I wondered if I doubled over the leg portions of a coil and twisted them would this lower the chance of the grommets being heated? I can't quite decide in my head and haven't tried it yet, but I figure in theory that the legs would be a larger width in a sense and would take longer to heat up than the coil turns, but then they would be lower resistance than the coil and can't work out if this would be a good thing or a bad thing as the whole coil will have a given resistance. Any thoughts or am I being dumb?

If you build your coil right and don't vape too high there shouldn't be an issue with hot legs in protanks

the only other thing that might be doing it is if your coil is too high and your legs are longer, doubling up shouldn't make too much of a difference

 

[defu]

Gonna have to disagree sorry. Ok micro coils are a bit overrated but the fit great in a protank so why not use them. The burning rubber only comes from 2 things in a protank. Running on too high a voltage for your coil, and dry burning. Both cause the coil to get too hot and burn the grommet imho and after alot of research and burnt grommets. Don't get any now

I've used micos in BCCs for a while but did end up getting that burnt taste. The reason I got the burnt taste is like you say, because I dry burnt the coils lol. But this is important for me, because I like to keep a coil in for weeks at a time and just change the wick (cotton) every 3 days or so. You've got to dry burn every so often to keep that coil in nice shape. Solution: premade nr-r-nr. That way you can both dry burn and not have to endure the hellish nightmare of burnt rubber

Don't get me wrong, I use micros in my RDAs - although not because I think micros give a superior vape but because you can use really thick wire which lasts for weeks on end because they are so thick and sturdy. Ideally, you could do a micro in a BCC and then zap or attach by hand the no res wire, but personally I find this so much faff that I just stick to wrapping a premade nr-r-nr arond a syringe that is kind of like a micro, but isn't.