Sooooo, I'm shopping for nozzles (E3Dv6 flavor), and there seems to be several shapes available, differing mainly (or even exclusively) in the size and shape of the cone coming down to the exit orifice.
The original E3D design has a flat step with an approximately 40 deg cone sitting on top of it, the cone's diameter being roughly half of the nut size.
This design seems to be labelled by chinese manufacturers as E-V6.
The other common design is what they call T-V6, with an approximately 60 degree cone that does not end in a step but instead widens right up to the nut diameter:
And then there are variations on the theme, with some nozzles having a sharper full-width cone (also seemingly an extremely common chinese design), others having a sharper/shallower/wider/narrower stepped design, and sometimes other slightly differing shapes.
Further, there are those weird nozzles that actually have an airbrush nozzle screwed into the brass body, and ones with carbide/ruby/etc insets, which can also have either a full-cone or a stepped overall shape.
My question would be, assuming identical material, quality of fabrication, etc, how would this difference in shape affect the nozzle thermally, mechanically, and in other aspects that have a practical impact on how it actually prints? How does it affect the print settings? If I change, say, from an E-V6 to a T-V6 nozzle, would I have to change my printing temperature or retune my heater PID? Would there be a noticeable difference between a sharper and a shallower full-width cone design?
Finally, while it isn't relevant to me right now, since I included the hard-tipped nozzles for completeness, what about them? What diference does that bring? And what about that airbrush tip thingamajig?