diff --git a/resources/definitions/ultimaker3.def.json b/resources/definitions/ultimaker3.def.json
index deb5104e13..d388b970cc 100644
--- a/resources/definitions/ultimaker3.def.json
+++ b/resources/definitions/ultimaker3.def.json
@@ -98,7 +98,7 @@
         "cool_min_speed": { "value": "5" },
         "fill_outline_gaps": { "value": "True" },
         "min_feature_size": { "value": "wall_line_width_0 / 4" },
-        "min_bead_width": { "value": "wall_line_width_0 / 2" },
+        "min_bead_width": { "value": "wall_line_width_0 * (100.0 + wall_split_middle_threshold)/200" },
         "infill_before_walls": { "value": false },
         "infill_overlap": { "value": "0" },
         "infill_pattern": { "value": "'triangles'" },
@@ -154,7 +154,7 @@
         "roofing_layer_count": { "value": "1" },
         "roofing_monotonic": { "value": "True" },
         "skin_overlap": { "value": "10" },
-        "speed_equalize_flow_width_factor": { "value": "0.5" },
+        "speed_equalize_flow_width_factor": { "value": "1.1" },
         "skin_monotonic" : { "value": true },
         "speed_layer_0": { "value": "20" },
         "speed_prime_tower": { "value": "speed_topbottom" },
@@ -174,11 +174,13 @@
         "support_z_distance": { "value": "0" },
         "switch_extruder_prime_speed": { "value": "15" },
         "switch_extruder_retraction_amount": { "value": "8" },
-        "top_bottom_pattern": { "value": "'zigzag'" },
         "top_bottom_thickness": { "value": "1" },
         "travel_avoid_distance": { "value": "3 if extruders_enabled_count > 1 else machine_nozzle_tip_outer_diameter / 2 * 1.5" },
         "wall_0_inset": { "value": "0" },
+        "wall_distribution_count": { "value": "1" },
         "wall_thickness": { "value": "1" },
+        "wall_transition_threshold": {"value": "90"},
+        "wall_add_middle_threshold": {"value": "wall_transition_threshold * 8/9"},
         "zig_zaggify_infill": { "value": "gradual_infill_steps == 0" }
     }
 }