Can Prusa MK4S Print PETG-CF?
Verified 3D printer and filament compatibility data.
Limited
78/100
Based on the verified compatibility data currently available, Prusa MK4S is rated limited for PETG-CF.
Hardware and material requirements
Stock nozzleNot suitable
Heated bedSuitable
Enclosure setupSuitable
Hardened nozzleRequired
Filament dryingNot required
Main limitation
Carbon fiber is abrasive and damages the stock brass nozzle.
Recommendation
Install a hardened nozzle and use a textured or satin sheet.
Prusa MK4S specifications
Max nozzle temperature
290 °C
Max bed temperature
120 °C
Enclosed printer
No
Stock hardened nozzle
No
Extruder
Nextruder
Material category
Fiber Reinforced
Verification source
Verified
2026-08-14
View official source ↗