PLA (incl. multicolor / silk) on Anycubic Kobra 3 / Kobra 3 Combo (ACE Pro)

CoshTech video (Aurora Whisper transcript): seam at back, ironing off, wall order inner/outer/inner, 3 wall loops, top and bottom shells 6 (monotonic line top), gyroid infill, tree or normal auto supports on build plate only, brim auto, raft 2 layers when adhesion is a worry. Multicolor: enable prime tower and flush into infill and supports, and raise the printer's ACE purge amount to 1.2x (up to 1.4x for PETG/ABS; max 3.0). Run auto-level (25 points), vibration compensation and PID first.