Cura/resources/extruders/structur3d_discov3ry1_complete_um2plus_extruder_0.def.json

{
    "version": 2,
    "name": "Discov3ry Extruder",
    "inherits": "fdmextruder",
    "metadata":
    {
        "machine": "structur3d_discov3ry1_complete_um2plus",
        "position": "0"
    },
    "overrides":
    {
        "extruder_nr": { "default_value": 0 },
        "machine_nozzle_size": { "default_value": 0.84 },
        "material_diameter": { "default_value": 3.175 }
    }
}