diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 6f1682a5b5..92246b4b56 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -4996,10 +4996,10 @@
                     "description": "The maximum distance between support structures in the X/Y directions. When separate structures are closer together than this value, the structures merge into one.",
                     "unit": "mm",
                     "type": "float",
-                    "default_value": 5.0,
+                    "default_value": 2.0,
                     "limit_to_extruder": "support_infill_extruder_nr",
                     "minimum_value_warning": "0",
-                    "maximum_value_warning": "50",
+                    "maximum_value_warning": "10",
                     "enabled": "(support_enable and support_structure == 'normal') or support_meshes_present",
                     "settable_per_mesh": false,
                     "settable_per_extruder": true
@@ -5477,7 +5477,7 @@
                     "description": "The diameter of a special tower.",
                     "unit": "mm",
                     "type": "float",
-                    "default_value": 5.0,
+                    "default_value": 3.0,
                     "limit_to_extruder": "support_infill_extruder_nr",
                     "minimum_value": "0",
                     "minimum_value_warning": "2 * machine_nozzle_size",