diff --git a/resources/profiles/Prusa/machine/Prusa MK3S 0.25 nozzle.json b/resources/profiles/Prusa/machine/Prusa MK3S 0.25 nozzle.json
index 5282b85706..8f3b224a82 100644
--- a/resources/profiles/Prusa/machine/Prusa MK3S 0.25 nozzle.json	
+++ b/resources/profiles/Prusa/machine/Prusa MK3S 0.25 nozzle.json	
@@ -12,7 +12,7 @@
     ],
     "default_print_profile": "0.20mm Speed @MK3S 0.25",
     "nozzle_diameter": [
-        "0.2"
+        "0.25"
     ],
     "bed_exclude_area": [
         "0x0"
@@ -39,6 +39,12 @@
         "200",
         "200"
     ],
+    "max_layer_height": [
+        "0.15"
+    ],
+    "min_layer_height": [
+        "0.05"
+    ],
     "host_type": "prusalink",
     "printable_height": "210",
     "machine_pause_gcode": "M601",
diff --git a/resources/profiles/Prusa/machine/Prusa MK3S 0.4 nozzle.json b/resources/profiles/Prusa/machine/Prusa MK3S 0.4 nozzle.json
index 191f4b1368..078bf79488 100644
--- a/resources/profiles/Prusa/machine/Prusa MK3S 0.4 nozzle.json	
+++ b/resources/profiles/Prusa/machine/Prusa MK3S 0.4 nozzle.json	
@@ -39,6 +39,12 @@
         "200",
         "200"
     ],
+    "max_layer_height": [
+        "0.3"
+    ],
+    "min_layer_height": [
+        "0.05"
+    ],
     "host_type": "prusalink",
     "printable_height": "210",
     "machine_pause_gcode": "M601",
diff --git a/resources/profiles/Prusa/machine/Prusa MK3S 0.6 nozzle.json b/resources/profiles/Prusa/machine/Prusa MK3S 0.6 nozzle.json
index 3bcc20332a..5782d3df69 100644
--- a/resources/profiles/Prusa/machine/Prusa MK3S 0.6 nozzle.json	
+++ b/resources/profiles/Prusa/machine/Prusa MK3S 0.6 nozzle.json	
@@ -39,6 +39,12 @@
         "200",
         "200"
     ],
+    "max_layer_height": [
+        "0.4"
+    ],
+    "min_layer_height": [
+        "0.15"
+    ],
     "host_type": "prusalink",
     "printable_height": "210",
     "machine_pause_gcode": "M601",
diff --git a/resources/profiles/Prusa/machine/Prusa MK3S 0.8 nozzle.json b/resources/profiles/Prusa/machine/Prusa MK3S 0.8 nozzle.json
index bde3819ca6..d70ede0cb2 100644
--- a/resources/profiles/Prusa/machine/Prusa MK3S 0.8 nozzle.json	
+++ b/resources/profiles/Prusa/machine/Prusa MK3S 0.8 nozzle.json	
@@ -39,6 +39,12 @@
         "200",
         "200"
     ],
+    "max_layer_height": [
+        "0.6"
+    ],
+    "min_layer_height": [
+        "0.2"
+    ],
     "host_type": "prusalink",
     "printable_height": "210",
     "machine_pause_gcode": "M601",
diff --git a/resources/profiles/Prusa/process/process_common_mk3.json b/resources/profiles/Prusa/process/process_common_mk3.json
index 8af0b65baa..b6becb41d3 100644
--- a/resources/profiles/Prusa/process/process_common_mk3.json
+++ b/resources/profiles/Prusa/process/process_common_mk3.json
@@ -50,6 +50,10 @@
     ],
     "ooze_prevention": "0",
     "outer_wall_acceleration": "0",
+    "overhang_1_4_speed": "25",
+    "overhang_2_4_speed": "20",
+    "overhang_3_4_speed": "15",
+    "overhang_4_4_speed": "15",
     "post_process": [
         ""
     ],