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What are good retraction settings?

Answer:

0.8mm retraction at 55mm/s with 0.6mm of spiral z-hop. Spiral z-hop requires Orca Slicer and that gcode arcs are enabled both on the printer in printer.cfg and in Orca (enable

Enable retratcion on layer change and moves over certain lengths.

Discussion

Retraction prevents nozzle ooze and "stringing".