Well, that was a fun [but short] run of running stock Prusa firmware. And, FWIW, I like the upcoming changes in 3.9.0. ...tho I think the 'IR sensor is flaky' fixes are a little misguided... ...maybe because I think the problem is something different entirely...
Yes, not easy to print a 0.8mm feature with a 1mm nozzle. As for single wall, though, if you're thinking of adhesion as the problem, adhesion usually gets better with larger nozzle sizes.
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I'm thinking mostly that small, momentary imperfections/glitches are more likely to result in an unusable print. Anyway, I played with tuning PPE printing for .6mm and .8mm nozzles for a week or two and couldn't exceed the overall print speed of the .4mm.
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(while still producing prints I was comfortable sending off to medical professionals) It's not that bigger nozzle *can't* go faster, just that in this case all the bottlenecks pop up at the same time and bigger nozzle buys me very little/nothing.
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