📅Update: 2020/09/18
Set the preferred starting acceleration for moves of different types.
View the current setting with M503.
Legacy M204 S<accel> is deprecated. Use separate paremeters M204 P<accel> T<accel> instead.
M204 [P<accel>] [R<accel>] [S<accel>] [T<accel>]
[P<accel>] Printing acceleration. Used for moves that include extrusion (i.e., which employ the current tool).
[R<accel>] Retract acceleration. Used for extruder retraction moves.
[S<accel>] Legacy parameter for move acceleration. Set both printing and travel acceleration.
[T<accel>] Travel acceleration. Used for moves that include no extrusion.