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What is a Rob Coil?

Discussion in 'Reos Mods' started by InTheClouds, Mar 11, 2014.

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  1. InTheClouds

    InTheClouds Super Member Verified Member ECF Veteran

    Jun 18, 2013
    Murphy, NC, USA
    I am not able to use cotton, it irritates my throat. I have tried organic, but since it is bleached with hydrogen peroxide I tried boiling it in case that was the problem. Still irritated my throat. I ordered some unbleached natural organic cotton, still can't use it. I went back to Silica, 32 gauge A1 Kanthal wrapped 4 times around doubled 2mm silica ended up at 1.6 ohms. I shoot for 1.5 but 1.6 is fine. I keep reading threads about coil builds and it seems like everyone has switched to micro coils and/or compressed coils and cotton. I love the compressed coils and cotton, so easy to rewick yada yada yada.... but it is close to impossible to thread silica through them. I tried taping the end (like the end of a shoelace) but it didn't work. I tried a needle threader, that cut the silica, tried same basic idea with a piece of thread, still cuts the silica... I am thinking I should be happy with my wrapping around silica, its working, tastes good, but....the neat tidy look of those compressed coils looks so nice. In reading all the coil threads and wicking threads I keep seeing people mention the Rob Coil, but no link or picture. So......what is it? Inquiring minds want to know :confused:
     
  2. MamaTried

    MamaTried Resting In Peace Verified Member ECF Veteran

    May 31, 2013
    Northern California
  3. DoogieTony

    DoogieTony Ultra Member Verified Member ECF Veteran

    Apr 12, 2013
    Indianapolis, IN
    Rob coil? My best guess would be this:






    P.S. you could also check out This Thread
     
  4. zmauls

    zmauls Madman Verified Member ECF Veteran

    Oct 24, 2013
    New Jersey
    I don't think it's the cotton. Did you just start using RBAs? You are aware that you must drop your nicotine level when you move from tanks to RBAs. Too much nicotine will hurt your throat immediately. You may also be placing your coils too high in your build. Higher coils mean more throat hit. If you're looking for a more lax hit, try lowering your coils first, then your nicotine. I would bet money it's one or the other.
     
  5. Funk Dracula

    Funk Dracula Ultra Member Verified Member ECF Veteran

    Jun 7, 2013
    Earth
    It's only a "Rob coil" if you have that north-east accent. :D
     
  6. newplague

    newplague Super Member Verified Member ECF Veteran

    Mar 24, 2010
    Oregon
    I never dropped my nic lvl when I switched to RBAs. I'm running lower ohm coils then I was using on atties also. As to the main topic, I use silica with compressed micro coils. I make sure to wet the end and get it twisted nice and tight, then I screw it into the coil. I found this works well with the ekowool also.
     
  7. InTheClouds

    InTheClouds Super Member Verified Member ECF Veteran

    Jun 18, 2013
    Murphy, NC, USA
    Thank you Mamatried and Doogie. Doh, never occurred to me they were talking about the video on the website, but makes sense, I just did not connect the dots. The other thread was good as well Doogie. I will try it in the morning.
     
  8. Funk Dracula

    Funk Dracula Ultra Member Verified Member ECF Veteran

    Jun 7, 2013
    Earth
    What's the internal diameter of your micro coils? Pics?

    Thanks
     
  9. newplague

    newplague Super Member Verified Member ECF Veteran

    Mar 24, 2010
    Oregon
    I use a 5/64 drill bit to wrap mine. 28g kanthal with ekowool. Can't remember if it is 1mm or 2mm. My coil building skills aren't pretty, but they work great. See for yourself lol.

    IMG_20140310_232757.jpg
     
  10. Funk Dracula

    Funk Dracula Ultra Member Verified Member ECF Veteran

    Jun 7, 2013
    Earth
    Thanks for the pics newplague.

    5/64 is a bit large for a micro coil diameter. I've went down the larger diameter path, and didn't prefer it. I found the larger the diameter, it was better just loose wrapping it. (no touching)

    I do think silica tastes better than cotton, as in I can't taste it at all. I haven't been able to make it work in a proper micro coil though, it needs a bigger diameter (more wick mass) to hold juice and work properly with higher wattage vaping IMO.

    I've had some success with the "un-stranding and needle threading" through a micro coil, but it needed a good squonk on every single hit. It just didn't work or perform anywhere nearly as efficient as cotton with a sub-ohm resistance micro diameter coil..

    One of these days I'll get off my .... and order some hemp and bamboo. I've tried several different brands of cotton, and can taste all of them. It's not bad by any means, but in a super "nit picky" world I'm sure there's something better out there. Like I said, I like silica better, just doesn't work out so well with that brilliant, bullet proof, reliable tiny micro coil build.

    Ahhhh.... First world problems eh? LOL
     
  11. ZeroOhms

    ZeroOhms Super Member Verified Member ECF Veteran

    Jan 9, 2014
    Los Angeles, CA, USA
    I used this method before switching to cotton.
    Take a spare wire and make a loop. Loop the silica. Thread using coil end and pull the silica using the coil.
    Also found this at drug store and used it few times. Loop the silica at the "loop" end and thread using the "pointy" end.

    IMG_1420.jpg
     
  12. newplague

    newplague Super Member Verified Member ECF Veteran

    Mar 24, 2010
    Oregon
    I switched from 1/16 to 5/64 because it was easier to get the wick through. I still come in around 1.2, right where I like it.
     
  13. InTheClouds

    InTheClouds Super Member Verified Member ECF Veteran

    Jun 18, 2013
    Murphy, NC, USA
    Had the same problem with the Kayfun lite and with a Helios... as soon as I go back to silica I have no problem. It doesn't need to be a micro coil, it's the compressed coil I like. I'll have to mess around with different diameters and gauges of wire and see if I can come up with a 1.4 to 1.6 ohm coil I can get silica thru, with all the helpful tips I think I can do it. This is not a "Must Have", what I am making is working, it is the aesthetics of the compressed coil... I like things neat and orderly, my coils look messy to me. When I was using cotton my coils were beautiful. Being me is a pain in the ... sometimes :oops:

    Edit: I use 6mg, I did not have issues even at 18mg.
     
  14. moondragon

    moondragon Super Member Verified Member ECF Veteran

    Feb 26, 2012
    It was suggested in another thread here a little while back, that instead of wire to pull the silica (after unravelling) through the micro coil to use a piece of dental floss. I did give it a try and it worked pretty well to get it through a 1/16 in diameter coil.
     
  15. ZeroOhms

    ZeroOhms Super Member Verified Member ECF Veteran

    Jan 9, 2014
    Los Angeles, CA, USA
    I had to lower the nic level when I switched from silica to cotton. Cotton seems to give more TH than silica. Also, KFL seems to smooth out the vapor more than RM2. Might the chimney in KFL that mixes the vapor more, but RM2 definitely kicks harder for me.
     
  16. solace.discord

    solace.discord Ultra Member Verified Member ECF Veteran

    Jun 21, 2011
    Southern Maine
    with hemp cord- boil the crud out of it! but that still might not get the taste out- the vape was good, the wicking was good, but it still tasted like.. hemp cord.

    I like bamboo thread over cotton.. but I find cotton is so much easier to work with. big box of sterile rolled cotton from CVS, didn't need to boil.. pick off a piece, roll it, thread it, clip it.

    also have silica and ekowoll on hand- haven't given those a fair shot yet..
     
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