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When using G1 command in G-code, what is the difference between Z- axis and E- axis?

I see all E, F and Z in

G1 Z0.350 F7800.000 G1 E-2.00000 F2400.00000 G92 E0 G1 X96.753 Y95.367 F7800.000 G1 E2.00000 F2400.00000 

1 Answer 1

z-axis refers typically to vertical movement

F references are feed rates/movement rates

E references are for the extruder, referencing the amount and speed to eject filament, negative e-values are retraction commands