Prusa has come up with a tidy answer to a messy 3D printing problem: make the nozzle pass through a small cleaning station that cuts, scrubs, and parks it.
stringing
Z Hop Setting Seems to Control FFF Surface Finish
A tiny slicer setting may have a big large effect on FFF surface quality.
Mixed Input Network Targets FFF Stringing Defects
Researchers have proposed an online, closed-loop way to spot and correct FFF stringing before a build is finished.