custom_extruder_9.def.json

{
    "version": 2,
    "name": "Extruder 1",
    "inherits": "fdmextruder",
    "metadata": {
        "machine": "custom",
        "position": "0"
    },

    "overrides": {
        "extruder_nr": {
            "default_value": 0,
            "maximum_value": "7"
        },
        "material_diameter": { "default_value": 1.75 },
        "machine_extruder_start_code": { 
            "default_value": "G1 F1200 E80\nG92 E0\n;Please do not change the upon code",
            "value": "machine_extruder_start_code_1 if max(extruderValues('machine_extruder_count')) > 1 else machine_extruder_start_code_0"
        },
        "machine_extruder_end_code": {
            "default_value": "G1 F1600 E-80\nG92 E0",
            "value": "machine_extruder_end_code_1 if max(extruderValues('machine_extruder_count')) > 1 else machine_extruder_end_code_0"
        }
    }
}