diff --git a/resources/definitions/erzay3d.def.json b/resources/definitions/erzay3d.def.json
index 89320f896c..497422d539 100644
--- a/resources/definitions/erzay3d.def.json
+++ b/resources/definitions/erzay3d.def.json
@@ -21,7 +21,7 @@
 	"machine_name": { "default_value": "Erzay3D" },
 	"machine_depth": { "default_value": 210 },
         "machine_width": { "default_value": 210 },
-	"machine_height": { "default_value": 250 },
+	"machine_height": { "default_value": 230 },
 	"machine_gcode_flavor": { "default_value": "RepRap (Marlin/Sprinter)" },
 	"machine_center_is_zero": { "default_value": true },
 	"machine_extruder_count": { "default_value": 1 },
@@ -43,8 +43,8 @@
 	"machine_max_acceleration_z": { "default_value": 3000 },
 	"machine_max_acceleration_e": { "default_value": 3000 },
 	"machine_acceleration": { "default_value": 1000 },
-	"machine_max_jerk_xy": { "default_value": 20 },
-	"machine_max_jerk_z": { "default_value": 20 },
+	"machine_max_jerk_xy": { "default_value": 10 },
+	"machine_max_jerk_z": { "default_value": 10 },
 	"machine_max_jerk_e": { "default_value": 10 },
 	"machine_steps_per_mm_x": { "default_value": 1600 },
 	"machine_steps_per_mm_y": { "default_value": 1600 },
@@ -110,23 +110,6 @@
 	"acceleration_skirt_brim": { "default_value": 1000 },
 		
 	"jerk_print": { "default_value": 10 },
-	"jerk_infill": { "default_value": 10 },
-	"jerk_wall": { "default_value": 10 },
-	"jerk_wall_0": { "default_value": 10 },
-	"jerk_wall_x": { "default_value": 10 },
-	"jerk_roofing": { "default_value": 10 },
-	"jerk_topbottom": { "default_value": 10 },
-	"jerk_support": { "default_value": 10 },
-	"jerk_support_infill": { "default_value": 10 },
-	"jerk_support_interface": { "default_value": 10 },
-	"jerk_support_roof": { "default_value": 10 },
-	"jerk_support_bottom": { "default_value": 10 },
-	"jerk_prime_tower": { "default_value": 10 },
-	"jerk_travel": { "default_value": 10 },
-	"jerk_layer_0": { "default_value": 10 },
-	"jerk_print_layer_0": { "default_value": 10 },
-	"jerk_travel_layer_0": { "default_value": 10 },
-	"jerk_skirt_brim": { "default_value": 10 },
 		
 	"support_angle": { "default_value": 65 },
 	"support_brim_enable": { "default_value": true },