Don't remove the item being printed no matter what.

Hide the air gap on slic3r
Put in Vellerman printer

StaticData/PrinterSettings/Velleman/K8200/calibration.ini

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+Calibration - Circle.stl

StaticData/PrinterSettings/Velleman/K8200/config.ini

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+avoid_crossing_perimeters = 1
+bed_size = 200,200
+bed_temperature = 50
+bottom_solid_layers = 3
+bridge_acceleration = 0
+bridge_fan_speed = 100
+bridge_flow_ratio = 1
+bridge_speed = 60
+brim_width = 0
+complete_objects = 0
+cooling = 1
+default_acceleration = 0
+disable_fan_first_layers = 3
+duplicate = 1
+duplicate_distance = 6
+duplicate_grid = 1,1
+end_gcode = M104 S0 ; turn off temperature\nG28 X0  ; home X axis\nM84     ; disable motors
+external_perimeter_speed = 95%
+external_perimeters_first = 0
+extra_perimeters = 1
+extruder_clearance_height = 20
+extruder_clearance_radius = 20
+extruder_offset = 0x0
+extrusion_axis = E
+extrusion_multiplier = 1.1
+extrusion_width = 100%
+fan_always_on = 0
+fan_below_layer_time = 60
+filament_diameter = 3
+fill_angle = 45
+fill_density = 0.25
+fill_pattern = honeycomb
+first_layer_bed_temperature = 50
+first_layer_extrusion_width = 110%
+first_layer_height = 0.30
+first_layer_speed = 85%
+first_layer_temperature = 190
+g0 = 0
+gap_fill_speed = 50
+gcode_arcs = 0
+gcode_comments = 0
+gcode_flavor = reprap
+infill_acceleration = 0
+infill_every_layers = 1
+infill_extruder = 1
+infill_extrusion_width = 170%
+infill_first = 
+infill_only_where_needed = 0
+infill_speed = 50
+layer_gcode = 
+layer_height = 0.25
+max_fan_speed = 100
+min_fan_speed = 35
+min_print_speed = 30
+min_skirt_length = 0
+notes = 
+nozzle_diameter = 0.5
+only_retract_when_crossing_perimeters = 1
+output_filename_format = [input_filename_base].gcode
+perimeter_acceleration = 0
+perimeter_extruder = 1
+perimeter_extrusion_width = 170%
+perimeter_speed = 30
+perimeters = 3
+post_process = 
+print_center = 100,100
+raft_layers = 0
+randomize_start = 1
+resolution = 0
+retract_before_travel = 2
+retract_layer_change = 1
+retract_length = 3
+retract_length_toolchange = 10
+retract_lift = 0
+retract_restart_extra = 0.1
+retract_restart_extra_toolchange = 0
+retract_speed = 65
+rotate = 0
+scale = 1
+skirt_distance = 6
+skirt_height = 1
+skirts = 2
+slowdown_below_layer_time = 5
+small_perimeter_speed = 30
+solid_fill_pattern = rectilinear
+solid_infill_below_area = 10
+solid_infill_every_layers = 0
+solid_infill_extrusion_width = 110%
+solid_infill_speed = 50
+spiral_vase = 0
+start_gcode = G28 ; home all axes\nG90 ; use absolute coordinates\nG21 ; set units to millimeters\nG92 E0\nM82 ; use absolute distances for extrusion\nM109 S190 ; wait for temperature to be reached\nG1 E10 F400 ; prime the nozzle
+support_material = 
+support_material_angle = 0
+support_material_enforce_layers = 0
+support_material_extruder = 1
+support_material_extrusion_width = 0
+support_material_interface_layers = 0
+support_material_interface_spacing = 0
+support_material_pattern = rectilinear
+support_material_spacing = 2.5
+support_material_speed = 50
+support_material_threshold = 46
+temperature = 190
+threads = 2
+toolchange_gcode = 
+top_infill_extrusion_width = 110%
+top_solid_infill_speed = 50
+top_solid_layers = 3
+travel_speed = 200
+use_relative_e_distances = 0
+vibration_limit = 0
+wipe = 0
+z_offset = 0

StaticData/PrinterSettings/Velleman/K8200/material/ABS.slice

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+bed_temperature = 70
+bridge_flow_ratio = 1.3
+bridge_speed = 70
+brim_width = 1
+cooling =  
+disable_fan_first_layers = 1
+fill_density = 0.3
+first_layer_bed_temperature = 60
+first_layer_extrusion_width = 120%
+first_layer_speed = 65%
+first_layer_temperature = 245
+gap_fill_speed = 70
+infill_extrusion_width = 180%
+infill_speed = 70
+min_print_speed = 10
+perimeter_extrusion_width = 175%
+perimeter_speed = 50
+skirts = 3
+slowdown_below_layer_time = 30
+small_perimeter_speed = 50
+solid_infill_speed = 70
+start_gcode =  G28 ; home all axes\nG90 ; use absolute coordinates\nG21 ; set units to millimeters\nG92 E0\nM82 ; use absolute distances for extrusion\nM109 S245 ; wait for temperature to be reached\nG1 E10 F400 ; prime the nozzle
+support_material_speed = 70
+temperature = 245
+top_solid_infill_speed = 70
+travel_speed = 250

StaticData/PrinterSettings/Velleman/K8200/material/PLA.slice

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+bed_temperature = 50
+bridge_flow_ratio =	1
+bridge_speed = 60
+brim_width = 0
+cooling = 1
+disable_fan_first_layers = 3
+fill_density = 0.25
+first_layer_bed_temperature = 50
+first_layer_extrusion_width = 110%
+first_layer_speed = 85%
+first_layer_temperature = 190
+gap_fill_speed = 50
+infill_extrusion_width = 170%
+infill_speed = 50
+min_print_speed = 30
+perimeter_extrusion_width = 170%
+perimeter_speed = 30
+skirts = 2
+slowdown_below_layer_time = 5
+small_perimeter_speed = 30
+solid_infill_speed = 50
+start_gcode =  G28 ; home all axes\nG90 ; use absolute coordinates\nG21 ; set units to millimeters\nG92 E0\nM82 ; use absolute distances for extrusion\nM109 S190 ; wait for temperature to be reached\nG1 E10 F400 ; prime the nozzle
+support_material_speed = 50
+temperature = 190
+top_solid_infill_speed = 50
+travel_speed = 200

StaticData/PrinterSettings/Velleman/K8200/setup.ini

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+baud_rate = 250000
+default_material_presets = PLA