Weird effects from rotating carto post; curiosity

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Cyrus Vap

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So I've come to believe (correct me if I'm wrong) that the best thing to do with a finicky carto is raise the post alla Dr. Snow Dragon. And the 'turning of the post' to loosen or tighten the draw, is (again please correct me), a myth.

But I'm a curious guy, and I think some of my wow cartos have been acting funny. I looked through the carto, all clear down the tube.

I took one and turned the post to the left a quarter turn

Immediate burnt taste. No visual change looking down the air tube. But man, YUCK. Woah!

Turned it back. Went back to normal.

Turned it to the right a quarter of a turn. The visual down the air tube was now occluded, looked like something was in the way. Harder draw, and voila, nasty burnt taste.

Turned it back to neutral, airway clear visually, burnt taste gone.

What the heck!? What's moving in there, and how is it creating a momentary singe?
 

Cyrus Vap

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Probably your contact for the wire... You might of cracked the solder point.... which is a wonder the carto is still working... as for burnt... once burnt its always burnt... Time take it apart and learn the inner workings of a carto.... have fun...

But its still working, and it was very full of juice :) Nasty taste come, nasty taste vanish, nothing but a twist involved. As such I don't think anything cracked.

Def gonna dissect it eventually :)
 

SnowDragon

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I did graduate from the University of V4L and did my residency at the ECF Center. :p

After performing postmortems on dozens of Cartomizers I do have a theory on why turning the post may affect Carto performance. Although the notched slot on the post would indicate it as being for a screwdriver, it is actually there to ensure airflow.

As we see here between the 4:27 and 4:47 Mark on the video



The metal stem or Air Wick Tube has the atomizer wire and the Atomizer sleeve attached to it. The Atomize sleeve is made from fiberglass composite material which is semi-rigid. The Atomizer is attached to Air Wick Tube where it runs up through the Atomizer sleeve to the top of the polyfill material, then back down as non-heated ground wire through the polyfill where it is attached or anchored by a solder connection to the base of the cartomizer battery connector.

If you were to take a cardboard paper towel core/tube and hold it one end with one hand. Then twist the other end a 1/4 turn with your other hand it would deform the shape causing the inner diameter to become smaller. This may also change the position of the Atomizer causing it to make closer contact with the wall of the Atomizer sleeve resulting in a burnt taste.

I touched on this subject on a paper in the June Edition of the New England Journal of Vaping. I believe one of my colleagues Dr. Morandir was recently awarded a research grant and has been doing some exciting pioneering work
exploring Atomizers.
 

plarkinjr

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I'm just guessing here, having dissected a carto once to see its insides.....

There is a wire that goes up from the base, turns and comes back down to the center post. On one of those runs up or down is the coil. You can build a simple model with a paper clip: straighten it out so that it looks like one tall "U". Now hold the two ends between your fingers in one hand, and the bend in the other hand, and twist. You'll see that the space closes up (simulating the occlusion you saw). Twist even more and eventually the legs will cross. You may not be able to see that crossing when you twist the carto the other way because of how its situated, but.... the crossing is probably the source of burning taste. Think about it, if you cross the coil, you're bypassing some of it. And/or it is arcing. That's about the only scenario I can think of that would do what you said.

I've used forceps to raise the center post on some cartos by rocking it back and forth with a tugging motion.
 

Cyrus Vap

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I did graduate from the University of V4L and did my residency at the ECF Center. :p

After performing postmortems on dozens of Cartomizers I do have a theory on why turning the post may affect Carto performance. Although the notched slot on the post would indicate it as being for a screwdriver, it is actually there to ensure airflow.

As we see here between the 4:27 and 4:47 Mark on the video



The metal stem or Air Wick Tube has the atomizer wire and the Atomizer sleeve attached to it. The Atomize sleeve is made from fiberglass composite material which is semi-rigid. The Atomizer is attached to Air Wick Tube where it runs up through the Atomizer sleeve to the top of the polyfill material, then back down as non-heated ground wire through the polyfill where it is attached or anchored by a solder connection to the base of the cartomizer battery connector.

If you were to take a cardboard paper towel core/tube and hold it one end with one hand. Then twist the other end a 1/4 turn with your other hand it would deform the shape causing the inner diameter to become smaller. This may also change the position of the Atomizer causing it to make closer contact with the wall of the Atomizer sleeve resulting in a burnt taste.

I touched on this subject on a paper in the June Edition of the New England Journal of Vaping. I believe one of my colleagues Dr. Morandir was recently awarded a research grant and has been doing some exciting pioneering work
exploring Atomizers.


This post deserves a Nobel lol

I think you nailed it, it's the only possible explanation for being able to readily reverse the nastiness by turning back the screw (assuming you only take one draw and don't incinerate the sleeve lol)
 
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