{ "type": "machine_model", "name": "Prusa MK4 MMU3", "model_id": "MK4ISMMU3", "nozzle_diameter": "0.4;0.6", "machine_tech": "FFF", "family": "Prusa", "bed_model": "mk4_bed.stl", "bed_texture": "mk4is.svg", "hotend_model": "", "default_materials": "Generic PLA @Prusa MK4 MMU3;Generic PETG @Prusa MK4 MMU3;Generic ABS @Prusa MK4 MMU3" }