M109 S100		; set the current hotend temperature to 100 and wait for it
M300 S1000 P100         ; beep
M302 P1			; allow cold extrusion for P1 extruder
M300 S750 P100          ; beep
G1 E-280 F15		; very slow retract - it takes ages
G1 E-650 F3000		; fast retract
M84 E0:1:2:3:4		; Disconnect extruder motors
M302 P0			; disallow cold extrusion for P1 extruder
M300 S1000 P100         ; beep
G4 P200                 ; pause 150ms
M300 S750 P100          ; beep
G4 P200                 ; pause 150ms
M300 S500 P100          ; beep