"machine_start_gcode":"M83; extruder relative mode\nG28; home all axes\nM109 S[nozzle_temperature_initial_layer]; hotend temperature\nM140 S[bed_temperature_initial_layer_single]; heatbed temperature\nM190 S[bed_temperature_initial_layer_single]; wait for the bed to heat up\nM109 S[nozzle_temperature_initial_layer]; wait for the extruder to heat up\nG92 E0; reset extruder\nG1 X20 Y5 Z0.3 F5000.0; move to start-line position\nG1 Z0.3 F1000; print height\nG1 X200 Y5 F1500.0 E15; draw 1st line\nG1 X200 Y5.3 Z0.3 F5000.0; move to side a little\nG1 X5.3 Y5.3 Z0.3 F1500.0 E30; draw 2nd line\nG1 Z3 F3000; move z up little to prevent scratching of surface",