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Rig Mod Explodes

Discussion in 'General Vaping Discussion' started by MedeHawn, Apr 28, 2016.

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  1. MedeHawn

    MedeHawn Full Member

    Apr 28, 2016
    image.jpg image.jpg So my local community has been up in arms lately due to a tube exploding. I'll fill you in on the details as I understand them and have been verified by multiple people close the the explosion.

    Day of a cloud comp, local shop is hosting three comps one of which is a .1 Tube Class. A few hours before the comp is scheduled to begin a customer in the shop asks an employee for help. His mod won't fire.

    Employee takes the Rig w/ roughneck and disassembles it to remove battery and check the atomizer ohms. Clapton that reads at a .17 without any issues. Receives new battery from the customer(half-wrap MXJO) and assembles mod to check for connection and firing issues.

    Employee pressed the button and the mod explodes near instantaneously(a few seconds without firing while he was checking for the coil to heat up) shooting the button out of the bottom and through part of his hand.


    So, that night and for the following few days the entire community starts bashing this individual online, for having a build below what they say is the max cont. amp limits of this battery. They scream that it was just too low and everyone should be building higher! A .21 would've been safe! (Regardless of the fact it wasn't his) Which caused it to explode like that. People bring up shorts and mechanical failures and are covered in memes and .... talking until they leave the group.

    People try to address that this incident is suddenly being used to fuel someone else's passion for raising limits and promoting mass hysteria not teaching safety.

    Shops begin changing their build limits to base everything off 20A limits. People continue to cry and say comps need to be done with forever. Any discussion not between those of a like mind with this side is immediately turned abusive and screaming if "IT WAS BUILT TOO LOW" drowns out what I believe to be the real issue here.


    So here I am, asking for outside opinions. I've tried posting and people are so locked into their side of the argument nobody cares what really happened or why.

    What are your thoughts?

    Feel free to ask questions and I will explain further or elaborate as required.

    *note: the employee is alive and well, he may have some small nerve damage on the pink side of his hand*
     
  2. sacullen

    sacullen Senior Member Verified Member ECF Veteran

    Mar 7, 2014
    Chicago, IL, USA
    Which is...?
     
    • Like Like x 1
  3. MedeHawn

    MedeHawn Full Member

    Apr 28, 2016
    Sorry I missed something, when he fired it he had the chuff cap and sleeve off, and said he hit the button twice, the second time being when it exploded the instant he pressed it down with nothing getting hot or warm.

    That there was a short of some kind. Not that a .17 is dangerously low and prone to instant explosions.
     
    • Like Like x 1
  4. Robert Cromwell

    Robert Cromwell Moved On ECF Veteran

    Feb 16, 2015
    elsewhere
  5. MedeHawn

    MedeHawn Full Member

    Apr 28, 2016
    New MXJO Half-Wrap 20A Cont.
     
  6. bwh79

    bwh79 Vaping Master Verified Member ECF Veteran

    Dec 11, 2014
    Oregon
    I'm like, 99.987% certain that this is what happened. 0.17 is low, but not "instant-explosion" low. Even at full charge that's only 24.7 amps. Above the limit, yes, but not by very much. I would expect that the battery might get uncomfortably hot if you pushed it that hard but for a full-on explosion it would probably have to heat up for several minutes before it attained thermal runaway. That's a lot riskier than I would care to be, but there are others who do this kind of thing every day and yet remain unscathed.

    On the other hand, the Rig is a pinless or "fake-hybrid" mod, an entire class of device known for being plagued with just this kind of safety issues. Center pin doesn't stick out far enough? Boom! Wrench the atty down a little too tight when attaching? Kablooey! Miss a thread and the 510 goes in a little crooked? You get the idea...
     
    • Like Like x 10
  7. Robert Cromwell

    Robert Cromwell Moved On ECF Veteran

    Feb 16, 2015
    elsewhere
    This!
    And insufficient venting.
     
    • Like Like x 3
  8. MrDripper

    MrDripper Super Member ECF Veteran

    Explain 'half-wrap'...does this mean that only half of the battery was wrapped?
    If this is the case, there's your culprit. If there's no barrier between the battery body and the inside of the tube, it will most definitely cayuse a short and explode.
    In tube comps that I'm in, the build limit is never lower than .08. This is the Canadian Cloud Circuit maximum lowest resistance and followed by every shop that holds a competition. Of course, some go higher than .08 but never lower. This establishes a safe limit for everyone to follow.
    Hope the employee recovers 100%.
     
    • Like Like x 2
  9. WhiskeyTango

    WhiskeyTango Senior Member ECF Veteran

    Mar 19, 2015
    Michigan
    Actually, the Rig is a true hybrid. Not a pinless mod like a SMPL. I know, I use one daily.
     
  10. Robert Cromwell

    Robert Cromwell Moved On ECF Veteran

    Feb 16, 2015
    elsewhere
    The 3 or 4 leg top cap type?
    One is really a 20 amp battery per Mooch's tests the other is maybe a 15 amp battery but the wraps are the same.
     
    • Like Like x 2
  11. MrDripper

    MrDripper Super Member ECF Veteran

    Also, if the Rig is a hybrid cap, the firing pin on the atomizer MUST protrude past the threading by AT LEAST 5/16" to minimize possibility of shorts.
     
    • Like Like x 2
  12. Robert Cromwell

    Robert Cromwell Moved On ECF Veteran

    Feb 16, 2015
    elsewhere
    Only if you use a hybrid atty. the rig V2 comes with a screw in hybrid style topcap. functionally the same as the SMPL if using a standard 510 atty.
    The rig V1 had a top center pin.
     
    • Like Like x 2
  13. MedeHawn

    MedeHawn Full Member

    Apr 28, 2016
    So it seems everyone here already agrees it was a short not the build? Wow, unexpectedly quick.

    Robert I don't know for sure the battery didn't survive.
     
    • Like Like x 1
  14. Rule62

    Rule62 Vaping Master Verified Member ECF Veteran

    Oct 28, 2011
    Melbourne, Florida
    I suspect the mod began auto firing as soon as the employee installed the battery, not when the button was pushed. It would have failed eventually, whether the employee was holding it and pressing the button or not. The reason: combination of the hybrid connector and the atty, where the center pin didn't extend beyond the 510 threads.
    Just my theory.
     
    • Like Like x 4
  15. Robert Cromwell

    Robert Cromwell Moved On ECF Veteran

    Feb 16, 2015
    elsewhere
    And as with virtually all tube mechs the venting on the Rig is woefully inadequate.
    I drill holes around the tops of mine.
     
    • Like Like x 1
  16. Bad Ninja

    Bad Ninja Vaping Master ECF Veteran

    Jun 26, 2013
    Salton Sea, CA

    What is a "half wrap" battery?
    Who used this term?

    We dont have enough information to determine what happened yet.
     
    • Like Like x 2
  17. Susan~S

    Susan~S ECF Guru Verified Member ECF Veteran

    Mar 12, 2014
    Mpls/St.Paul, MN
    Hope that is not when using a single battery in a mech mod.
    The wrap is half yellow and half silver.
     
    • Like Like x 2
  18. Bad Ninja

    Bad Ninja Vaping Master ECF Veteran

    Jun 26, 2013
    Salton Sea, CA
    Vented and blew out the switch.
    Hmmmm

    Damaged battery installed upside down would do that.

    Batteries usually vent from the top
    ;)

    Safety first
     
    • Like Like x 4
  19. Izan

    Izan Vaping Master ECF Veteran

    Jul 1, 2012
    Mallorca, Spain
    My 2 cents:
    Ohm reader was inaccurate....
    .17Ω leaves little room for error
    The "NEW" battery was below spec. or damaged from previous attempts to fire the device.

    So lets call it .1Ω and a 17 amp cell @4volts = 160 Watts and a 40 AMP draw.
    And then....
    YMMV

    Be safer
    I
     
    • Like Like x 1
  20. Bad Ninja

    Bad Ninja Vaping Master ECF Veteran

    Jun 26, 2013
    Salton Sea, CA
    Yep after further reading my guess was the battery was installed upside down and the wrapper was damaged.

    Batteries vent from the top (+) pole.
    Due to improper installation and a possible damaged wrapper,
    Battery began to swell, blocked the tube, vented from the top (bottom of mod) and ejected the switch.
    Careless/improper installation of the battery would be the cause, imho.

    It ticks all the boxes.
     
    • Like Like x 4
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