Petercro MkV self juicing mod initial impressions

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clyde2801

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Something fairly unexpected showed up at my office last Friday morning. An unassuming parcel from the Royal Mail. Posted by petercro some weeks ago, it was held up by UK and US customs and the Bjorkcano for so long that I thought it would never get here.

It contained the MkV, a proof of concept mod by Petercro using a rn4801 atty, 18650 (or 2x cr123a) battery connection in a holder made of painted PVC piping. Painted black, it looks...subversive. I wouldn't be surprised if Peter and I both are on the no-fly lists now.

Like it's predecessor, the MkII, I love the rn4801 atty in peter's bottom juice fed configuration. Especially when using a pg/vg mix or straight vg, the atty delivers decent vape and throat hit plus great taste to boot. It's warm, wet, tasty vape brings out the best in whatever juice you're vaping (though it has a bit loud slurping noises) and the 4081 is a tough little atty. Overpriming the bottle doesn't lead to flooding since the excess is jettisoned to the outside of the atty on the top of the box, where it can be quickly and easily wiped off. And best of all, the atty design with the brass tube from the bottle creates a self juicing effect: a soft, slow inhale on the MkV while horizontal draws enough juice from the bottle onto the atty so that squeezing the bottle is hardly ever required. Brilliant!

Unlike the MkII, the MkV's design appears ready and able to stand up to my ham fisted (ab)use. Two lengths of pvc pipe are securely fastened together to hold the battery and the bottle/atty connection in the separate sides. Besides being small for a 18650 3rd gen, the mod lends itself to being held well (the indentation between the two haves makes it easy to grasp) and for one handed vaping.

The paint job on the pvc is a bit rushed to get it to me, but petercro tells me that he has vastly improved his painting techniques on subsequent prototypes. The MkV also features a deatchable LED and a microswitch that is quickly becoming one of my favorites.

Peter has also used pvc to give the MkV a couple of neat little features, slide on battery and switch covers. Well thought out and designed, they negate the need for a on/off switch and give the mod its rugged and subversive look. This PV looks like it was made for the Special Forces or possibly James Bond.

Despite this, I have found that women tend to like this mod. It may have something to do with its small size and form factor. Invariably, when I play show and tell with my 3rd gens, people either reach for the GGTS w/AFS or the MkV.

Again, this is a proof of concept, so it is not CURRENTLY offered for sale. Peter has discussed a tentative price point that I'm not at liberty to disclose which should make it quite affordable, considering its features and capabilities.

I'm going to put this through its paces in the next few weeks. Unlike some other mods, I have few doubts that this will able to take some extended use.
 
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petercro

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My friend Clyde is slightly mistaken the switch I'm using is
gw671123.jpg

Sub-Miniature Lever Microswitch : Micro Switches : Maplin

From Maplin UK, Not Madvapes

Also the tubing is Brass not teflon.

Minor details, But the result is the same.
 

clyde2801

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The squeaky wheel gets the grease, and you spend 90% of your time with 10% of your people.

I've been spending some time with some more challenging mods, but the MkV is still hanging in there, diligently delivering nicotine day in and day out.

The self juicing action is enhanced by holding it horizontally at an upward angle (like a jazz trumpeter) and taking a sharp inhale. When that fails, squeezing the bottle upside down until you see a jet of vapor escape through the top of the atty eliminates any leaks from priming.

Besides durability, the benefit of the rn4081 atty is it's ability to deliver some warm tasty vape. I suspect this is from it's tendency to vape at a very warm temperature without popping.
 

clyde2801

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found out i have had a broken hand for the last 10 days. pain overtook me; went to ER today, x-rayed, put in splint.

only one mod i have can vape one handed. ggts-avs requires 2 hands

pulled out mk v, fresh batty, and upped vg mix in bottle

glad i did. much more vapor, good taste great batty life.

i have given short shrift to this solid little mod. we're gonna be spending some quality time in the next few days
 

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clyde2801

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dumped choc back into bottle, refilled with bella val with a good bit of vg thrown in

mkv loves vg. good warm thick vape every time. lite on TH but nothings perfect. long hard draw produces HVish vape. inhales a bit loud though-dont use in church

with a fullish bottle and a hard draw its self juicing. nice.

good vpo-vapes per ounce-juice efficient. bottle should last even me all day

forgot what a tough little SOB the rn4081 is. good choice for this mod.

good God-WHY has this been setting in a desk drawer?:blush:
 

clyde2801

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...RTFM!

sometimes i want to make a mod into something its not, i cant turn a ford focus into a mustang by mashing on the gas 2x as hard.

i tried turning the mkv into an avs. it will self juice through inhales with a full bottle, but not half gone. tried turning the rig upside down, sucking til blue in the face, trying 6v....and killed the atty in a day....:blink:

had the epiphany to go back and see how its maker suggested to vape it....yeah, i know. Petercro suggested a good vg mix, and squeezing the bottle for 2-3 full seconds, and what a difference that made.

There's no comparison between the full bottle autojuice and the correct way....better taste and vape by far with the latter. when sufficiently juiced i heard the slurpy sound from the 4081 that i remembered from the mk2, my first 3rd gen mod. better th with the correct method, too.

make no mistake, this IS 3.7v vaping. but its pretty damned good vaping nonetheless. its not a fog machine, but the warm, dense, tasty vape is pretty satisfying for a non HV setup. once the relatively modest learning curve is mastered, every inhale is the equivalent to a good 3.7 device with a fully charged batty and freshly juiced cart-not too shabby.

and a small squeeze gets me a minimum of 5-6 good puffs. not quite the all day auto juicing i love, but acceptable. other bottle mods need attention every 2nd or 3rd puff, which detracts from my enjoyment of them.

its still not a mustang, but maybe a focus zts....
 
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