Creator 4 defaults to the Creator 4-A version (Extruder-HT for printing engineering filaments) and the Creator 4-S version (Extruder-HS for printing carbon fiber composite filaments) when leaving the factory; The Extruder-F for printing flexible filaments is optional separately, and users can switch among the Extruder-F/HT/HS to print with different filaments according to their needs.
Flashforge Creator 4 FDM 3D Printer