{ "pre":[ "M104 S{temp} T{tool} ; set extruder temperature", "G21 ; Make sure we're in metric mode", "G90 ; set absolute positioning mode", "M83 ; set relative positioning for extruder", "G28 ; home axes", "G92 E0 ; zero the extruded", "M109 S{temp} T{tool} ; wait for extruder to reach target temp", "G1 F200 E3.5 ; set feed speed, prime nozzle", "G92 E0 ; zero the extruded", "G1 Z30 ; position near the bed before first position" ], "post":[ "G28 ; home axes", "M104 S0 T{tool} ; turn off right extruder", "M140 S0 T{tool} ; turn off bed", "M84 ; disable stepper motors" ], "cmd":{ "fan_power": "M106 S{fan_speed}" }, "settings":{ "nozzle_size": 0.35, "origin_center": true, "bed_width": 240, "bed_depth": 240, "bed_circle": true, "build_height": 260 } }