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Grumble, Mofos, lousy workmen, you name it. My eVic VTC mini just went brain dead. Put in a charged battery, it shows a normal screen but with the battery showing empty and then it just flips to "Key lock". Try pushing buttons you get various crazies, like stealth on, off, key lock, it's...

They are now available in stunningly hideous colors too ...

I can tell u for sure they are not "leaked V 3's". The construction appears to have the same top air holes and inlets in the base as the more conventional black donut ones I got from keepitmovin13, so they are likely just that with a different heater. The one picture I had showed the wires...

I've been vaping off the lowest temp fraction in the daytime, and setting aside the cups with the remainder for night time. When the temp is set higher, all that's left is dark matter. No need for solvents. The trick is tapping out the cup while it's still warm because some oil always sticks on...

What we're discussing here is the Donut atomizer that Matt has done such a great job on. @elmoe420 yes, of course. And on the shallow bowl DT the "riding up" is there too, though you can hold the cup down with e.g. an inverted screen, and a 6.8 mm diameter doesn't block air. Then we're down to...

Well, yeah, doh, but they built a wall! 40 days? whoa. On the whole I buy stateside. I had good first experiences with GearWurst, but that was that. I got a nice authentic white Pico on e-bay for $35 from vapeCentral305. Came in 2 days from Fla to Cali. Looks like he's outta stock now. The...

@elmoe420 Hope you're a happy vaper, I can't afford enemies ;-) Just remember to use a donut atomizer with the air holes ABOVE the rim of the ceramic cup, like the ones keepitmovin13 sells on e-bay. @ataxian 's mad at me because I love the Firefly and he got one and it died or fried or blew...

I just got my 2.5 deep dish w/ Pyrex cap (really wanted one of those). As expected, the air inlets are way down in the well. Can't use a ceramic cup in the well, as air hitting the cup throws the TC way off. I guess I'll save it to use by the "bacon right on the spiral" approach, though...

@Vape Donkey 650 Donkey let me try to answer They work best directly on top of the donut I haven't tried to burn them clean on the donut yet, because 1) dry burning the donuts really stresses them, and 2) it's much simpler to pop the cup out and torch it, like 10 seconds. 3) The donut stays...

@elmoe420 as far as I can determine all these materials are identical, they are an aluminum oxide ceramic. If the crystalline structure is just so, and this occurs in the earth I believe from gradual crystallization, you get transparent material like sapphire. Same thing, chemically. If there...

It doesn't work well with the shallow DT atomizer I have, as I mentioned, because of the air coming in too low. I have a deep bowl DT coming to try, but I'm not expecting much, same issue as with the shallow bowl. On other ceramic donut atomizers like the black one shown above, the 6.8 mm x 4...

I tried using Matt's shallow bowl with my alumina cup, and as expected the air coming in below the rim of the cup (see where the holes are?) cools the cup, unevenly, and messes up the temp control. In the black e-bay units I got from Keepitmovin13 the cup drops into a deep bowl, and the air...

@ataxian sorry you didn't notice the ;-) in my post. The "Matt Donut" we're into here is IMHO more cost-effective and flexible than most of the new package electronic nails. But it's the same general objective: an effective portable concentrate vaporizer. The temperature control base is...

Cynics. I still have my Firefly 1 and love it. @ataxian was that a 1 or 2 that died on you? I also love the Solo I got on e-bay years ago. I'm lovin' a lot o' stuff. It's like the judge asking the accused how he could rob and main a little old lady for a lousy quarter, and the guy says "Well...

@OF of course in the end you have to have some way to actually measure the temp anyway, since only THAT is what matters. Having the resistance reading AND the actual temp lets you calculate an "M" value to start with. Then you try it and correct it until your displayed target temp and actual...

@OF that's a great tip. Thanks. But somehow I passed up an iPad for $129, and now ... these beauties ? The one thing about the Pico is that the resistance doesn't change in real time, so you can't calculate a TC curve/setting on that device, you have to use values you derived on an eVic Mini...

@OF A little pocket MXT-100 has served me well for years, 100g x 10mg, but the coin style batteries are a nuisance. Can't beat garden variety AAAs. Under cook-ware they offer the multi-function https://www.amazon.com/dp/B00ZZ5CO2M?psc=1 but I dunno about the ABS plastic and the resolution ;-)

@OF the worst thing about all these scales is the un-defeatable auto-off. Just when you got everything equalized, you turn to look at the gorilla who entered the room, and by the time you get back to the scale it's turned itself off. There's one that doesn't, but I don't think it can resolve...

@matthend yes, and there's an American vendor. They are used in analytical chem, they sell them for ~ $13 ea. Polycrystalline Sapphire and Alumina are the same thing. The perfect size for my eBay deep bowl atomizer is 4 mm, the diameter 6-7 mm. If used in the shallow bowl, airflow pulls it up...

The glass disk/button works by itself for smaller dabs. They are easy to find, you want about 6-7 mm diameter and the thicker the better. The little cups are another matter, they are not easy to find or cheap. I just got a couple, and I'm in testing mode at the moment. On the RTA issue, my...