Crazy3dprint cz-300 printer profile update

resources/definitions/crazy3dprint_cz_300.def.json

@@ -10,6 +10,7 @@
         "file_formats": "text/x-gcode",
         "preferred_quality_type": "normal",
         "quality_definition": "crazy3dprint_base",
+        "platform": "Crazy3DPrint_310x330x4.stl",
         "supports_usb_connection": true
     },
     "overrides":
@@ -43,20 +44,21 @@
         },
         "machine_heated_bed": { "default_value": true },
         "machine_height": { "default_value": 300.0 },
+        "gantry_height": { "value": 26 },
         "machine_name": { "default_value": "CZ-300" },
         "machine_shape": { "default_value": "rectangular" },
         "machine_start_gcode": { "default_value": "G28 ; home all axes\nG1 Z15 F5000 ; lift nozzle\nG92 E0\nG1 F200 E3\n" },
         "machine_width": { "default_value": 300.0 },
-        "material_bed_temperature_layer_0": { "value": 70 },
+        "material_bed_temperature_layer_0": { "value": 50 },
         "material_final_print_temperature": { "value": 210 },
         "material_flow_layer_0": { "value": 140 },
         "min_infill_area": { "default_value": 2.0 },
         "retract_at_layer_change": { "default_value": true },
         "retraction_amount": { "default_value": 10 },
         "retraction_speed": { "default_value": 50 },
-        "skirt_line_count": { "default_value": 5 },
+        "skirt_line_count": { "default_value": 3 },
         "speed_print": { "default_value": 40 },
         "speed_travel": { "value": 60 },
         "top_bottom_pattern": { "default_value": "concentric" }
     }
-}
+}