diff --git a/cura/Arrange.py b/cura/Arrange.py
index 148661c45b..2ab407205c 100755
--- a/cura/Arrange.py
+++ b/cura/Arrange.py
@@ -2,6 +2,7 @@ from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
 from UM.Logger import Logger
 from UM.Math.Vector import Vector
 from cura.ShapeArray import ShapeArray
+from cura import ZOffsetDecorator
 
 from collections import namedtuple
 
@@ -67,12 +68,19 @@ class Arrange:
                 offset_shape_arr, start_prio = start_prio, step = step)
             x, y = best_spot.x, best_spot.y
             start_prio = best_spot.priority
+            # Ensure that the object is above the build platform
+            new_node.removeDecorator(ZOffsetDecorator.ZOffsetDecorator)
+            if new_node.getBoundingBox():
+                center_y = new_node.getWorldPosition().y - new_node.getBoundingBox().bottom
+            else:
+                center_y = 0
+
             if x is not None:  # We could find a place
-                new_node.setPosition(Vector(x, 0, y))
-                self.place(x, y, hull_shape_arr)  # take place before the next one
+                new_node.setPosition(Vector(x, center_y, y))
+                self.place(x, y, hull_shape_arr)  # place the object in arranger
             else:
                 Logger.log("d", "Could not find spot!")
-                new_node.setPosition(Vector(200, 0, 100 - i * 20))
+                new_node.setPosition(Vector(200, center_y, 100 - i * 20))
 
             nodes.append(new_node)
         return nodes
diff --git a/cura/ArrangeObjectsJob.py b/cura/ArrangeObjectsJob.py
index 746914ea6a..17bc9b0333 100755
--- a/cura/ArrangeObjectsJob.py
+++ b/cura/ArrangeObjectsJob.py
@@ -5,6 +5,7 @@ from UM.Job import Job
 from UM.Scene.SceneNode import SceneNode
 from UM.Math.Vector import Vector
 from UM.Operations.SetTransformOperation import SetTransformOperation
+from UM.Operations.TranslateOperation import TranslateOperation
 from UM.Operations.GroupedOperation import GroupedOperation
 from UM.Logger import Logger
 from UM.Message import Message
@@ -66,10 +67,10 @@ class ArrangeObjectsJob(Job):
 
                 arranger.place(x, y, hull_shape_arr)  # take place before the next one
 
-                grouped_operation.addOperation(SetTransformOperation(node, Vector(x, center_y, y)))
+                grouped_operation.addOperation(TranslateOperation(node, Vector(x, center_y, y), set_position = True))
             else:
                 Logger.log("d", "Arrange all: could not find spot!")
-                grouped_operation.addOperation(SetTransformOperation(node, Vector(200, center_y, - idx * 20)))
+                grouped_operation.addOperation(TranslateOperation(node, Vector(200, center_y, - idx * 20), set_position = True))
 
             status_message.setProgress((idx + 1) / len(nodes_arr) * 100)
             Job.yieldThread()
diff --git a/cura/BuildVolume.py b/cura/BuildVolume.py
index 0ca4550d7f..ab756d133e 100755
--- a/cura/BuildVolume.py
+++ b/cura/BuildVolume.py
@@ -208,7 +208,7 @@ class BuildVolume(SceneNode):
                 # Mark the node as outside the build volume if the bounding box test fails.
                 if build_volume_bounding_box.intersectsBox(bbox) != AxisAlignedBox.IntersectionResult.FullIntersection:
                     node._outside_buildarea = True
-                    break
+                    continue
 
                 convex_hull = node.callDecoration("getConvexHull")
                 if convex_hull:
@@ -220,7 +220,7 @@ class BuildVolume(SceneNode):
                         if overlap is None:
                             continue
                         node._outside_buildarea = True
-                        break
+                        continue
 
         # Group nodes should override the _outside_buildarea property of their children.
         for group_node in group_nodes:
diff --git a/plugins/UM3NetworkPrinting/NetworkPrinterOutputDevice.py b/plugins/UM3NetworkPrinting/NetworkPrinterOutputDevice.py
index a4aea5ecb8..7c58f2bb66 100755
--- a/plugins/UM3NetworkPrinting/NetworkPrinterOutputDevice.py
+++ b/plugins/UM3NetworkPrinting/NetworkPrinterOutputDevice.py
@@ -816,10 +816,10 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
                     return  # Stop trying to zip, abort was called.
 
                 if self._use_gzip:
+                    batched_line += line
                     # if the gcode was read from a gcode file, self._gcode will be a list of all lines in that file.
                     # Compressing line by line in this case is extremely slow, so we need to batch them.
                     if len(batched_line) < max_chars_per_line:
-                        batched_line += line
                         continue
 
                     byte_array_file_data += _compress_data_and_notify_qt(batched_line)
diff --git a/resources/definitions/cartesio.def.json b/resources/definitions/cartesio.def.json
index 2415a6372a..d0904b9716 100644
--- a/resources/definitions/cartesio.def.json
+++ b/resources/definitions/cartesio.def.json
@@ -37,14 +37,22 @@
         "machine_depth": { "default_value": 270 },
         "machine_width": { "default_value": 430 },
         "machine_gcode_flavor": { "default_value": "RepRap (Marlin/Sprinter)" },
+        "material_print_temp_wait": { "default_value": false },
+        "material_bed_temp_wait": { "default_value": false },
+        "infill_pattern": { "default_value": "grid"},
+        "prime_tower_enable": { "default_value": true },
+        "prime_tower_wall_thickness": { "resolve": 0.7 },
+        "prime_tower_position_x": { "default_value": 30 },
+        "prime_tower_position_y": { "default_value": 71 },
         "machine_start_gcode": {
-            "default_value": "M92 E159\nG21\nG90\nM42 S255 P13;chamber lights\nM42 S255 P12;fume extraction\nM140 S{material_bed_temperature}\n\nM117 Homing Y ......\nG28 Y\nM117 Homing X ......\nG28 X\nM117 Homing Z ......\nG28 Z F100\nG1 Z10 F600\nG1 X70 Y20 F9000;go to wipe point\n\nM190 S{material_bed_temperature}\nM104 S120 T1\nM109 S{material_print_temperature} T0\nM104 S21 T1\n\nM117 purging nozzle....\n\nT0\nG92 E0;set E\nG1 E10 F100\nG92 E0\nG1 E-{retraction_amount} F600\nG92 E0\n\nM117 wiping nozzle....\n\nG1 X1 Y24 F3000\nG1 X70 F9000\n\nM117 Printing .....\n\nG1 E1 F100\nG92 E-1\n"
+            "default_value": "\nM104 S120 T1\nM104 S120 T2\nM104 S120 T3\n\nM92 E159\n\nG21\nG90\nM42 S255 P13;chamber lights\nM42 S255 P12;fume extraction\n\nM117 Homing Y ......\nG28 Y\nM117 Homing X ......\nG28 X\nM117 Homing Z ......\nG28 Z F100\nG1 Z10 F600\nG1 X70 Y20 F9000;go to wipe point\n\nM190 S{material_bed_temperature_layer_0}\n\nM117 Heating for 50 sec.\nG4 S20\nM117 Heating for 30 sec.\nG4 S20\nM117 Heating for 10 sec.\nM300 S600 P1000\nG4 S9\n\nM117 purging nozzle....\nT0\nG92 E0;set E\nG1 E10 F100\nG92 E0\nG1 E-1 F600\n\nM117 wiping nozzle....\nG1 X1 Y24 F3000\nG1 X70 F9000\n\nM104 S21 T1\nM104 S21 T2\nM104 S21 T3\n\nM117 Printing .....\n"
         },
         "machine_end_gcode": {
-            "default_value": "; -- END GCODE --\nM106 S255\nM140 S5\nM104 S5 T0\nM104 S5 T1\nG1 X20.0 Y260.0 F6000\nG4 S7\nM84\nG4 S90\nM107\nM42 P12 S0\nM42 P13 S0\nM84\n; -- end of END GCODE --"
+            "default_value": "; -- END GCODE --\nM106 S255\nM140 S5\nM104 S5 T0\nM104 S5 T1\nM104 S5 T2\nM104 S5 T3\nG1 X20.0 Y260.0 F6000\nG4 S7\nM84\nG4 S90\nM107\nM42 P12 S0\nM42 P13 S0\nM84\nT0\n; -- end of GCODE --"
         },
         "layer_height": { "maximum_value": "(0.8 * min(extruderValues('machine_nozzle_size')))" },
         "layer_height_0": { "maximum_value": "(0.8 * min(extruderValues('machine_nozzle_size')))" },
+        "layer_height_0": { "resolve": "0.2 if min(extruderValues('machine_nozzle_size')) < 0.3 else 0.3 "},
         "machine_nozzle_heat_up_speed": {"default_value": 20},
         "machine_nozzle_cool_down_speed": {"default_value": 20},
         "machine_min_cool_heat_time_window": {"default_value": 5}
diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 2aa5a1ee6c..e0532b3e5b 100755
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -4271,7 +4271,8 @@
                     "description": "Spiralize smooths out the Z move of the outer edge. This will create a steady Z increase over the whole print. This feature turns a solid model into a single walled print with a solid bottom. This feature used to be called Joris in older versions.",
                     "type": "bool",
                     "default_value": false,
-                    "settable_per_mesh": true
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": false
                 }
             }
         },
diff --git a/resources/extruders/cartesio_extruder_0.def.json b/resources/extruders/cartesio_extruder_0.def.json
index cda2f48bc0..7dc3aaa8af 100644
--- a/resources/extruders/cartesio_extruder_0.def.json
+++ b/resources/extruders/cartesio_extruder_0.def.json
@@ -16,10 +16,10 @@
         "machine_nozzle_offset_x": { "default_value": 0.0 },
         "machine_nozzle_offset_y": { "default_value": 0.0 },
         "machine_extruder_start_code": {
-          "default_value": "\n;start extruder_0\nM117 Heating nozzles....\nM104 S190 T0\nG1 X70 Y20 F9000\nM109 S190 T0\n\nM117 purging nozzle\nG92 E0\nG1 E6 F90\nG92 E0\nG1 E-2 F300\nG92 E0\nM117 wiping nozzle\nG1 X1 Y28 F3000\nG1 X70 F6000\n\nM117 printing\n"
+          "default_value": "\n;start extruder_0\n\nM117 printing\n"
         },
         "machine_extruder_end_code": {
-           "default_value": "\nM104 T0 S155\n;end extruder_0\nM117 temp is {material_print_temp}"
+           "default_value": "\nM104 T0 S155\nG91\nG1 Z0.5 F900\nG90\nG1 X1 Y260 F9000\n;end extruder_0\nM117 temp is {material_print_temp}"
         }
     }
 }
diff --git a/resources/extruders/cartesio_extruder_1.def.json b/resources/extruders/cartesio_extruder_1.def.json
index b2bae26983..d8c2e00aed 100644
--- a/resources/extruders/cartesio_extruder_1.def.json
+++ b/resources/extruders/cartesio_extruder_1.def.json
@@ -16,10 +16,10 @@
         "machine_nozzle_offset_x": { "default_value": 24.0 },
         "machine_nozzle_offset_y": { "default_value": 0.0 },
         "machine_extruder_start_code": {
-          "default_value": "\n;start extruder_1\nM117 Heating nozzles....\nM104 S190 T1\nG1 X70 Y20 F9000\nM109 S190 T1\n\nM117 purging nozzle\nG92 E0\nG1 E6 F90\nG92 E0\nG1 E-2 F300\nG92 E0\n\nM117 wiping nozzle\nG1 X1 Y28 F3000\nG1 X70 F6000\n\nM117 printing\n"
+          "default_value": "\n;start extruder_1\n\nM117 printing\n"
         },
         "machine_extruder_end_code": {
-           "default_value": "\nM104 T1 S155\n;end extruder_1\n"
+           "default_value": "\nM104 T1 S155\nG91\nG1 Z0.5 F900\nG90\nG1 X1 Y260 F9000\n;end extruder_1\n"
         }
     }
 }
diff --git a/resources/extruders/cartesio_extruder_2.def.json b/resources/extruders/cartesio_extruder_2.def.json
index b7c382538a..062b80581c 100644
--- a/resources/extruders/cartesio_extruder_2.def.json
+++ b/resources/extruders/cartesio_extruder_2.def.json
@@ -16,10 +16,10 @@
         "machine_nozzle_offset_x": { "default_value": 0.0 },
         "machine_nozzle_offset_y": { "default_value": 60.0 },
         "machine_extruder_start_code": {
-          "default_value": "\n;start extruder_2\nM117 Heating nozzles....\nM104 S190 T2\nG1 X70 Y20 F9000\nM109 S190 T2\n\nM117 purging nozzle\nG92 E0\nG1 E6 F90\nG92 E0\nG1 E-2 F300\nG92 E0\n\nM117 wiping nozzle\nG1 X1 Y28 F3000\nG1 X70 F6000\n\nM117 printing\n"
+          "default_value": "\n;start extruder_2\n\nM117 printing\n"
         },
         "machine_extruder_end_code": {
-           "default_value": "\nM104 T2 S155\n;end extruder_2\n"
+           "default_value": "\nM104 T2 S155\nG91\nG1 Z0.5 F900\nG90\nG1 X1 Y260 F9000\n;end extruder_2\n"
         }
     }
 }
diff --git a/resources/extruders/cartesio_extruder_3.def.json b/resources/extruders/cartesio_extruder_3.def.json
index ec400103aa..5582f0f436 100644
--- a/resources/extruders/cartesio_extruder_3.def.json
+++ b/resources/extruders/cartesio_extruder_3.def.json
@@ -16,10 +16,10 @@
         "machine_nozzle_offset_x": { "default_value": 24.0 },
         "machine_nozzle_offset_y": { "default_value": 60.0 },
         "machine_extruder_start_code": {
-          "default_value": "\n;start extruder_3\nM117 Heating nozzles....\nM104 S190 T3\nG1 X70 Y20 F9000\nM109 S190 T3\n\nM117 purging nozzle\nG92 E0\nG1 E6 F90\nG92 E0\nG1 E-2 F300\nG92 E0\n\nM117 wiping nozzle\nG1 X1 Y28 F3000\nG1 X70 F6000\n\nM117 printing\n"
+          "default_value": "\n;start extruder_3\n\nM117 printing\n"
         },
         "machine_extruder_end_code": {
-           "default_value": "\nM104 T3 S155\n;end extruder_3\n"
+           "default_value": "\nM104 T3 S155\nG91\nG1 Z0.5 F900\nG90\nG1 X1 Y260 F9000\n;end extruder_3\n"
         }
     }
 }
diff --git a/resources/variants/cartesio_0.25.inst.cfg b/resources/variants/cartesio_0.25.inst.cfg
index 39f8e4e09d..b64f5121a8 100644
--- a/resources/variants/cartesio_0.25.inst.cfg
+++ b/resources/variants/cartesio_0.25.inst.cfg
@@ -14,22 +14,23 @@ machine_nozzle_tip_outer_diameter = 1.05
 infill_line_width = 0.3
 
 wall_thickness = 1
+top_bottom_thickness = 0.8
 wall_0_inset = -0.05
 fill_perimeter_gaps = nowhere
 travel_compensate_overlapping_walls_enabled = 
 
-infill_sparse_density = 30
+infill_sparse_density = 40
+infill_pattern = grid
 
 material_print_temperature_layer_0 = =round(material_print_temperature)
 material_initial_print_temperature = =round(material_print_temperature)
 material_diameter = 1.75
 retraction_amount = 1
-retraction_speed = 40
-retraction_prime_speed = =round(retraction_speed / 4)
+retraction_prime_speed = =round(retraction_speed / 5)
 retraction_min_travel = =round(line_width * 10)
 switch_extruder_retraction_amount = 2
-switch_extruder_retraction_speeds = 40
-switch_extruder_prime_speed = =round(switch_extruder_retraction_speeds / 4)
+switch_extruder_retraction_speeds = =round(retraction_speed)
+switch_extruder_prime_speed = =round(retraction_prime_speed)
 
 speed_print = =50 if layer_height < 0.4 else 30
 speed_infill = =round(speed_print)
@@ -46,6 +47,9 @@ retraction_combing = off
 retraction_hop_enabled = True
 retraction_hop = 1
 
+cool_min_layer_time_fan_speed_max = =round(cool_min_layer_time)
+cool_min_layer_time = 20
+
 support_z_distance = 0
 support_xy_distance = 0.5
 support_join_distance = 10
diff --git a/resources/variants/cartesio_0.4.inst.cfg b/resources/variants/cartesio_0.4.inst.cfg
index 3a818469b9..3462133717 100644
--- a/resources/variants/cartesio_0.4.inst.cfg
+++ b/resources/variants/cartesio_0.4.inst.cfg
@@ -1,11 +1,10 @@
-
 [general]
 name = 0.4 mm
 version = 2
 definition = cartesio
 
 [metadata]
-author = Scheepers
+author = Cartesio
 type = variant
 
 [values]
@@ -15,32 +14,32 @@ machine_nozzle_tip_outer_diameter = 0.8
 infill_line_width = 0.5
 
 wall_thickness = 1.2
+top_bottom_thickness = 0.8
 wall_0_inset = -0.05
 fill_perimeter_gaps = nowhere
 travel_compensate_overlapping_walls_enabled =
 
-infill_sparse_density = 25
-infill_overlap = -50
-skin_overlap = -40
+infill_sparse_density = 40
+infill_pattern = grid
 
 material_print_temperature_layer_0 = =round(material_print_temperature)
 material_initial_print_temperature = =round(material_print_temperature)
 material_diameter = 1.75
 retraction_amount = 1
-retraction_speed = 40
-retraction_prime_speed = =round(retraction_speed /4)
+retraction_prime_speed = =round(retraction_speed / 5)
 retraction_min_travel = =round(line_width * 10)
 switch_extruder_retraction_amount = 2
-switch_extruder_retraction_speeds = 40
-switch_extruder_prime_speed = =round(switch_extruder_retraction_speeds /4)
+switch_extruder_retraction_speeds = =round(retraction_speed)
+switch_extruder_prime_speed = =round(retraction_prime_speed)
 
 speed_print = 50
+speed_infill = =round(speed_print)
 speed_layer_0 = =round(speed_print / 5 * 4)
-speed_wall = =round(speed_print / 2, 1)
+speed_wall = =round(speed_print / 2)
 speed_wall_0 = =10 if speed_wall < 11 else (speed_print / 5 *3)
 speed_topbottom = =round(speed_print / 5 * 4)
 speed_slowdown_layers = 1
-speed_travel =  =round(speed_print if magic_spiralize else 150)
+speed_travel = =round(speed_print if magic_spiralize else 150)
 speed_travel_layer_0 = =round(speed_travel)
 speed_support_interface = =round(speed_topbottom)
 
@@ -48,6 +47,9 @@ retraction_combing = off
 retraction_hop_enabled = True
 retraction_hop = 1
 
+cool_min_layer_time_fan_speed_max = =round(cool_min_layer_time)
+cool_min_layer_time = 20
+
 support_z_distance = 0
 support_xy_distance = 0.5
 support_join_distance = 10
diff --git a/resources/variants/cartesio_0.8.inst.cfg b/resources/variants/cartesio_0.8.inst.cfg
index 3f6502667c..bdaae61af5 100644
--- a/resources/variants/cartesio_0.8.inst.cfg
+++ b/resources/variants/cartesio_0.8.inst.cfg
@@ -19,20 +19,18 @@ wall_0_inset = -0.05
 fill_perimeter_gaps = nowhere
 travel_compensate_overlapping_walls_enabled = 
 
-infill_sparse_density = 15
-infill_overlap = -50
-skin_overlap = -40
+infill_sparse_density = 24
+infill_pattern = grid
 
 material_print_temperature_layer_0 = =round(material_print_temperature)
 material_initial_print_temperature = =round(material_print_temperature)
 material_diameter = 1.75
 retraction_amount = 1.5
-retraction_speed = 40
-retraction_prime_speed = =round(retraction_speed / 4)
+retraction_prime_speed = =round(retraction_speed / 5)
 retraction_min_travel = =round(line_width * 10)
 switch_extruder_retraction_amount = 2
-switch_extruder_retraction_speeds = 40
-switch_extruder_prime_speed = =round(switch_extruder_retraction_speeds / 4)
+switch_extruder_retraction_speeds = =round(retraction_speed)
+switch_extruder_prime_speed = =round(retraction_prime_speed)
 
 speed_print = =50 if layer_height < 0.4 else 30
 speed_infill = =round(speed_print)
@@ -49,6 +47,9 @@ retraction_combing = off
 retraction_hop_enabled = True
 retraction_hop = 1
 
+cool_min_layer_time_fan_speed_max = =round(cool_min_layer_time)
+cool_min_layer_time = 20
+
 support_z_distance = 0
 support_xy_distance = 0.5
 support_join_distance = 10