Cura/resources/definitions/vzbot_custom.def.json

{
    "name": "VzBot Custom",
    "version": 2,
    "inherits": "vzbot_base",
    "metadata":
    {
        "visible": true,
        "quality_definition": "vzbot_base"
    },
    "overrides":
    {
        "machine_name":     { "default_value": "VzBot Custom" },
        "machine_width":    { "default_value": 400 },
        "machine_depth":    { "default_value": 400 },
        "machine_height":   { "default_value": 400 }
    }
}