START G-CODE: ;MPMD Basic Calibration Tutorial: ; https://www.thingiverse.com/thing:3892011 G90 ; switch to absolute positioning G92 E0 ; reset extrusion distance G28 ; start from home position G1 E-6 F900 ; retract 6mm of filament before starting the bed leveling process G92 E0 ; reset extrusion distance G29 C-0.8 Z0.35 ; auto level bed G1 X0 Y-55 Z110 ; Move nozzle to one side G1 E50 F200 ; extrude 50mm of filament to help prime the nozzle prior to the start of the print G92 E0 ; reset extrusion distance G4 S5 ; pause for 5 seconds to allow time for cleaning the nozzle and build plate END G-CODE: M107 ; turn off fan M104 S0 ; turn off hotend heater M140 S0 ; turn off bed heater G91 ; Switch to use Relative Coordinates G1 E-2 F300 ; retract the filament before lifting the nozzle to release some of the pressure G1 Z5 E-5 F4800 ; move nozzle up a bit and retract filament even more G28 X0 ; return to home positions so the nozzle is out of the way M84 ; turn off stepper motors G90 ; switch to absolute positioning M82 ; absolute extrusion mode