So. speaking of cooling… I’ve been floating an idea around for a bit now. Ever play with an airbrush kit (like for painting minis?)

hear me out here. Imagine setting up a plennum pressure chamber fed by an airbrush compressor, then using servos or something to control conic plug valves (as in the airbrush itself.) Now, imagine something similar to a bowden tube running to the hot end from said plenum chamber… directing the air exactly where you want it.

seriously, most the weight of the hot end is now in fans. At least, for me. (heater cooler, nozzle cooler, the other nozzle cooler.)
Imagine how fast we could get with bowden-air… (yeah, I’ll have to work on that name…)