Cura/resources/definitions/voron2_300.def.json

{
    "name": "VORON2 300",
    "version": 2,
    "inherits": "voron2_base",
    "metadata":
    {
        "visible": true,
        "platform": "voron2_300_bed.3mf",
        "quality_definition": "voron2_base"
    },
    "overrides":
    {
        "machine_name":     { "default_value": "VORON2 300" },
        "machine_width":    { "default_value": 300 },
        "machine_depth":    { "default_value": 300 },
        "machine_height":   { "default_value": 300 }
    }
}