Prusa MK4 / Core One family / High Speed Matte PETG

High Speed Matte PETG on Prusa MK4 / Core One family

official
Test on scrap first. Settings are starting points from the linked source. Dry hygroscopic filaments before printing.
Printer
Prusa MK4 / Core One family
Filament brand
SUNLU
Filament type
High Speed Matte PETG
Slicer
PrusaSlicer / OrcaSlicer
Nozzle size
0.4 mm
Nozzle temp
240-260 °C
Bed temp
60-70 °C
Speed
≤400 mm/s
Retraction
0.8-1.2 mm @ 30-40 mm/s
Cooling
ON
Notes
Official SUNLU High Speed Matte PETG TDS: nozzle 240-260°C, bed 60-70°C, fan on, retraction 0.8-1.2 mm @ 30-40 mm/s, drying 60-65°C. Supports up to ~470 mm/s claimed.
Source: SUNLU TDS · 2026-03-25
Summarized from the linked source. Always test on scrap before production runs.