3D Printer Line/Extrusion Width | Best Settings & Examples.
The generally accepted range is 60% to 200% as the absolute limits. 0.8mm falls within that so I’m not surprised to hear it works. Other guidelines typically include a layer height of 25% to 75% of the nozzle width, and there is more discussion on certain parameters in this thread: What's the smallest diameter nozzle you've used? - #10 by brent113