Hello,
On my ender 3 I am testing this GCode to Load Filament:
G21 ; Let the printer know you are following this point with metric values
G90 ; Extruder Relative Positioning
M109 S200 ; Heat hotend to 200C
M300 S880 P300 ; Play tone
G4 S5 ; wait 5 seconds
G92 E0 ;Reset the position of the extruder
G1 E420 F1000 ; Feed 420 mm of filament at 1000 mm/minute speed. Fast move.
G92 E0 ;Reset the position of the extruder
G1 E120 F100 ; Feed 120 mm of filament at 100 mm/minute speed. Slow move.
M300 S880 P300 ; Play tone
M400 ; loop until movement done
The issue that I get is that the second feed (the 120mm one) goes backwards instead of feeding forward an additional 120 mm of filmenent as requested. What I am doing wrong?