Dual Extrusion Fine Tuning in Help, Tips & Tricks Posted April 17, 2017 · Edited April 17, 2017 by Guest I am trying to print this dual extrusion print with white and black PLA. Any ideas on how to fine tune this to remove the mess on top? I have tried the ooze shield, prime tower, and changing the top level jerk settings (not sure this helped, but I tried it). Nothing has shown visible improvement yet. I am printing ultimaker PLA (white and black) on normal settings in cura (0.1mm layer height).