restructure raft airgap

No values are changed, but the settings are restructured. The PVA airgap is moved to fdm_materials. Inconsistent use of equations is also resolved. PP-243

resources/definitions/ultimaker3.def.json

@@ -111,7 +111,6 @@
         "multiple_mesh_overlap": { "value": "0" },
         "optimize_wall_printing_order": { "value": "True" },
         "prime_tower_enable": { "default_value": true },
-        "raft_airgap": { "value": "0" },
         "retraction_amount": { "value": "6.5" },
         "retraction_hop": { "value": "2" },
         "retraction_hop_enabled": { "value": "extruders_enabled_count > 1"  },

resources/definitions/ultimaker_s3.def.json

@@ -100,7 +100,6 @@
         "multiple_mesh_overlap": { "value": "0" },
         "optimize_wall_printing_order": { "value": "True" },
         "prime_tower_enable": { "value": "True" },
-        "raft_airgap": { "value": "0" },
         "retraction_amount": { "value": "6.5" },
         "retraction_hop": { "value": "2" },
         "retraction_hop_enabled": { "value": "extruders_enabled_count > 1"  },

resources/definitions/ultimaker_s5.def.json

@@ -101,7 +101,6 @@
         "default_material_print_temperature": { "value": "200" },
         "multiple_mesh_overlap": { "value": "0" },
         "prime_tower_enable": { "value": "True" },
-        "raft_airgap": { "value": "0" },
         "retraction_amount": { "value": "6.5" },
         "retraction_combing": { "value": "'no_outer_surfaces'"},
         "retraction_hop": { "value": "2" },

resources/quality/ultimaker3/um3_aa0.25_Nylon_Normal_Quality.inst.cfg

@@ -17,7 +17,7 @@ cool_min_speed = 12
 machine_nozzle_cool_down_speed = 0.9
 machine_nozzle_heat_up_speed = 1.4
 ooze_shield_angle = 40
-raft_airgap = =round(layer_height_0 * 0.85, 2)
+raft_airgap = 0.15
 retraction_min_travel = 5
 skin_overlap = 50
 speed_print = 70

resources/quality/ultimaker3/um3_aa0.4_Nylon_Draft_Print.inst.cfg

@@ -19,7 +19,7 @@ material_print_temperature = =default_material_print_temperature + 10
 material_initial_print_temperature = =material_print_temperature - 5
 material_final_print_temperature = =material_print_temperature - 10
 ooze_shield_angle = 40
-raft_airgap = =round(layer_height_0 * 0.85, 2)
+raft_airgap = 0.25
 skin_overlap = 50
 speed_layer_0 = =math.ceil(speed_print * 20 / 70)
 switch_extruder_prime_speed = 30

resources/quality/ultimaker3/um3_aa0.4_Nylon_Fast_Print.inst.cfg

@@ -19,7 +19,7 @@ material_print_temperature = =default_material_print_temperature + 5
 material_initial_print_temperature = =material_print_temperature - 5
 material_final_print_temperature = =material_print_temperature - 10
 ooze_shield_angle = 40
-raft_airgap = =round(layer_height_0 * 0.85, 2)
+raft_airgap = 0.25
 skin_overlap = 50
 speed_layer_0 = =math.ceil(speed_print * 20 / 70)
 switch_extruder_prime_speed = 30

resources/quality/ultimaker3/um3_aa0.4_Nylon_High_Quality.inst.cfg

@@ -18,7 +18,7 @@ cool_min_speed = 15
 material_initial_print_temperature = =material_print_temperature - 5
 material_final_print_temperature = =material_print_temperature - 10
 ooze_shield_angle = 40
-raft_airgap = =round(layer_height_0 * 0.85, 2)
+raft_airgap = 0.25
 skin_overlap = 50
 speed_layer_0 = =math.ceil(speed_print * 20 / 70)
 switch_extruder_prime_speed = 30

resources/quality/ultimaker3/um3_aa0.4_Nylon_Normal_Quality.inst.cfg

@@ -18,7 +18,7 @@ cool_min_speed = 12
 material_initial_print_temperature = =material_print_temperature - 5
 material_final_print_temperature = =material_print_temperature - 10
 ooze_shield_angle = 40
-raft_airgap = =round(layer_height_0 * 0.85, 2)
+raft_airgap = 0.25
 skin_overlap = 50
 speed_layer_0 = =math.ceil(speed_print * 20 / 70)
 switch_extruder_prime_speed = 30

resources/quality/ultimaker3/um3_aa0.8_Nylon_Draft_Print.inst.cfg

@@ -19,7 +19,7 @@ machine_nozzle_cool_down_speed = 0.9
 machine_nozzle_heat_up_speed = 1.4
 ooze_shield_angle = 40
 prime_tower_enable = True
-raft_airgap = =round(layer_height_0 * 0.85, 2)
+raft_airgap = 0.45
 support_angle = 70
 switch_extruder_prime_speed = 30
 switch_extruder_retraction_amount = 30

resources/quality/ultimaker3/um3_aa0.8_Nylon_Superdraft_Print.inst.cfg

@@ -20,7 +20,7 @@ machine_nozzle_cool_down_speed = 0.9
 machine_nozzle_heat_up_speed = 1.4
 ooze_shield_angle = 40
 prime_tower_enable = True
-raft_airgap = =round(layer_height_0 * 0.85, 2)
+raft_airgap = 0.45
 support_angle = 70
 switch_extruder_prime_speed = 30
 switch_extruder_retraction_amount = 30