I've always been curious, finally decided to ask...
Why doesn't the stainless steel, which is conductive, cause a short in the coil itself? And why when people talk about using mesh as a wick talk about scorching or burning it?
Build looks interesting though. I've not been too pleased with my results with silica on a single coil build and since they were nice enough to actually include a bit of stainless steel mesh in the parts bag of the clone thought I'd give it a try.
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Those things are very much related. The wick is indeed conductive, but you can build up a layer of oxidation/carbon between the wick and coil to prevent current from jumping between coil and wick. Some people torch their wick. Some people do what's called "pulsing". Where you start with an untreated wick and give it quick pulses of current to slowly build up a layer of carbon beneath directly between coil and wick.
Getting a mesh setup just right can be a bit tricky. Not really hard, just takes a bit of practice. Coil tension has to be just right. Not so tight it bites into the mesh, and not so loose you end up with gaps. Both of these will cause hotspots. Which is points where current jumps from coil to wick*... and tastes burnt/nasty. Lots of heat concentrated on one spot. Essentially it's a short circuit, tho not a dead short.
*Edit: Or in case of gaps, coil is not cooled by liquids.