My student @Joseph_Zhang has been working hard on a generalized nonplanar slicer. I hope everyone else is as impressed as I am. (Eventually this can be layered with an algorithm to pick the slicing layer intelligently to increase printability.)
This would be invaluable in top layer finishing. No more artifacts due to flat layers. There are still some limitations, but that would come with experimentation.
Whilst there are conspicuous issues this is definitely a step in the right direction. My experiments with reducing layer height have left me with unexpected problems to solve and this might help out. Keep it up!
@Wylie_Hilliard An articulating nozzle is the end goal for me. I plan on building a Sextupteron. As soon as I build one everyone will say, “that is neat but it is useless/overkill without special software”. Making the software and using it on a 3DOF printer seemed to be a good first step. It still remains to be seen how bad the artifacts will be. There are artifacts even if the layer is planar.